/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 15:37:15,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 15:37:15,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 15:37:15,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 15:37:15,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 15:37:15,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 15:37:15,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 15:37:15,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 15:37:15,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 15:37:15,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 15:37:15,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 15:37:15,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 15:37:15,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 15:37:15,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 15:37:15,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 15:37:15,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 15:37:15,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 15:37:15,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 15:37:15,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 15:37:15,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 15:37:15,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 15:37:15,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 15:37:15,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 15:37:15,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 15:37:15,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 15:37:15,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 15:37:15,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 15:37:15,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 15:37:15,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 15:37:15,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 15:37:15,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 15:37:15,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 15:37:15,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 15:37:15,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 15:37:15,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 15:37:15,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 15:37:15,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 15:37:15,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 15:37:15,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 15:37:15,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 15:37:15,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 15:37:15,946 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-SemanticLbe.epf [2022-12-12 15:37:15,960 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 15:37:15,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 15:37:15,962 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 15:37:15,962 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 15:37:15,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 15:37:15,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 15:37:15,963 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 15:37:15,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 15:37:15,963 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 15:37:15,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 15:37:15,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 15:37:15,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 15:37:15,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 15:37:15,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 15:37:15,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 15:37:15,964 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 15:37:15,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 15:37:15,964 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 15:37:15,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 15:37:15,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 15:37:15,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 15:37:15,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 15:37:15,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 15:37:15,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:37:15,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 15:37:15,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 15:37:15,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 15:37:15,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 15:37:15,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 15:37:15,965 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 15:37:15,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 15:37:16,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 15:37:16,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 15:37:16,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 15:37:16,231 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 15:37:16,231 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 15:37:16,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-12-12 15:37:17,158 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 15:37:17,329 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 15:37:17,330 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-12-12 15:37:17,334 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/840387bc2/67fb12affda1432e99c1304e3ab43cb2/FLAGa66858e9e [2022-12-12 15:37:17,344 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/840387bc2/67fb12affda1432e99c1304e3ab43cb2 [2022-12-12 15:37:17,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 15:37:17,347 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 15:37:17,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 15:37:17,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 15:37:17,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 15:37:17,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:37:17" (1/1) ... [2022-12-12 15:37:17,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50737a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:37:17, skipping insertion in model container [2022-12-12 15:37:17,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:37:17" (1/1) ... [2022-12-12 15:37:17,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 15:37:17,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 15:37:17,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,481 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-12-12 15:37:17,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:37:17,505 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 15:37:17,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:37:17,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:37:17,528 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-12-12 15:37:17,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:37:17,550 INFO L208 MainTranslator]: Completed translation [2022-12-12 15:37:17,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:37:17 WrapperNode [2022-12-12 15:37:17,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 15:37:17,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 15:37:17,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 15:37:17,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 15:37:17,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:37:17" (1/1) ... [2022-12-12 15:37:17,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:37:17" (1/1) ... [2022-12-12 15:37:17,607 INFO L138 Inliner]: procedures = 29, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 289 [2022-12-12 15:37:17,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 15:37:17,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 15:37:17,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 15:37:17,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 15:37:17,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:37:17" (1/1) ... [2022-12-12 15:37:17,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:37:17" (1/1) ... [2022-12-12 15:37:17,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:37:17" (1/1) ... [2022-12-12 15:37:17,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:37:17" (1/1) ... [2022-12-12 15:37:17,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:37:17" (1/1) ... [2022-12-12 15:37:17,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:37:17" (1/1) ... [2022-12-12 15:37:17,641 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:37:17" (1/1) ... [2022-12-12 15:37:17,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:37:17" (1/1) ... [2022-12-12 15:37:17,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 15:37:17,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 15:37:17,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 15:37:17,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 15:37:17,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:37:17" (1/1) ... [2022-12-12 15:37:17,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:37:17,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:37:17,675 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) [2022-12-12 15:37:17,695 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 [2022-12-12 15:37:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 15:37:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 15:37:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 15:37:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 15:37:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 15:37:17,708 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 15:37:17,708 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 15:37:17,708 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 15:37:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 15:37:17,709 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 15:37:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-12 15:37:17,709 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-12 15:37:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 15:37:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-12 15:37:17,709 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-12 15:37:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-12-12 15:37:17,710 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-12-12 15:37:17,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 15:37:17,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 15:37:17,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 15:37:17,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 15:37:17,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 15:37:17,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 15:37:17,711 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 15:37:17,852 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 15:37:17,853 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 15:37:18,174 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 15:37:18,362 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 15:37:18,362 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-12 15:37:18,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:37:18 BoogieIcfgContainer [2022-12-12 15:37:18,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 15:37:18,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 15:37:18,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 15:37:18,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 15:37:18,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 03:37:17" (1/3) ... [2022-12-12 15:37:18,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d5f32dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:37:18, skipping insertion in model container [2022-12-12 15:37:18,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:37:17" (2/3) ... [2022-12-12 15:37:18,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d5f32dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:37:18, skipping insertion in model container [2022-12-12 15:37:18,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:37:18" (3/3) ... [2022-12-12 15:37:18,369 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2022-12-12 15:37:18,380 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 15:37:18,380 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 15:37:18,380 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 15:37:18,496 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-12-12 15:37:18,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 249 places, 248 transitions, 568 flow [2022-12-12 15:37:18,622 INFO L130 PetriNetUnfolder]: 18/220 cut-off events. [2022-12-12 15:37:18,622 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-12 15:37:18,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 220 events. 18/220 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 281 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 190. Up to 3 conditions per place. [2022-12-12 15:37:18,629 INFO L82 GeneralOperation]: Start removeDead. Operand has 249 places, 248 transitions, 568 flow [2022-12-12 15:37:18,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 213 places, 212 transitions, 472 flow [2022-12-12 15:37:18,636 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 15:37:18,651 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 213 places, 212 transitions, 472 flow [2022-12-12 15:37:18,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 212 transitions, 472 flow [2022-12-12 15:37:18,694 INFO L130 PetriNetUnfolder]: 18/212 cut-off events. [2022-12-12 15:37:18,694 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-12 15:37:18,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 212 events. 18/212 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 280 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 190. Up to 3 conditions per place. [2022-12-12 15:37:18,701 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 213 places, 212 transitions, 472 flow [2022-12-12 15:37:18,701 INFO L226 LiptonReduction]: Number of co-enabled transitions 7312 [2022-12-12 15:37:24,664 INFO L241 LiptonReduction]: Total number of compositions: 151 [2022-12-12 15:37:24,682 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 15:37:24,687 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;@2d70fb50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 15:37:24,688 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-12-12 15:37:24,701 INFO L130 PetriNetUnfolder]: 9/60 cut-off events. [2022-12-12 15:37:24,701 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-12 15:37:24,701 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:37:24,702 INFO L214 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] [2022-12-12 15:37:24,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-12 15:37:24,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:37:24,706 INFO L85 PathProgramCache]: Analyzing trace with hash -482795550, now seen corresponding path program 1 times [2022-12-12 15:37:24,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:37:24,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070206652] [2022-12-12 15:37:24,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:37:24,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:37:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:37:25,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:37:25,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:37:25,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070206652] [2022-12-12 15:37:25,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070206652] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:37:25,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:37:25,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 15:37:25,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749912056] [2022-12-12 15:37:25,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:37:25,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 15:37:25,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:37:25,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 15:37:25,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 15:37:25,271 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 61 [2022-12-12 15:37:25,272 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 61 transitions, 170 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:37:25,272 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:37:25,272 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 61 [2022-12-12 15:37:25,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:37:27,934 INFO L130 PetriNetUnfolder]: 28944/36855 cut-off events. [2022-12-12 15:37:27,934 INFO L131 PetriNetUnfolder]: For 4966/4966 co-relation queries the response was YES. [2022-12-12 15:37:27,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79913 conditions, 36855 events. 28944/36855 cut-off events. For 4966/4966 co-relation queries the response was YES. Maximal size of possible extension queue 900. Compared 169829 event pairs, 12531 based on Foata normal form. 1/28136 useless extension candidates. Maximal degree in co-relation 78348. Up to 14539 conditions per place. [2022-12-12 15:37:28,135 INFO L137 encePairwiseOnDemand]: 54/61 looper letters, 115 selfloop transitions, 8 changer transitions 1/138 dead transitions. [2022-12-12 15:37:28,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 138 transitions, 653 flow [2022-12-12 15:37:28,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 15:37:28,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 15:37:28,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 181 transitions. [2022-12-12 15:37:28,163 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7418032786885246 [2022-12-12 15:37:28,165 INFO L175 Difference]: Start difference. First operand has 71 places, 61 transitions, 170 flow. Second operand 4 states and 181 transitions. [2022-12-12 15:37:28,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 138 transitions, 653 flow [2022-12-12 15:37:28,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 138 transitions, 567 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-12-12 15:37:28,286 INFO L231 Difference]: Finished difference. Result has 64 places, 68 transitions, 191 flow [2022-12-12 15:37:28,288 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=191, PETRI_PLACES=64, PETRI_TRANSITIONS=68} [2022-12-12 15:37:28,291 INFO L295 CegarLoopForPetriNet]: 71 programPoint places, -7 predicate places. [2022-12-12 15:37:28,291 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 68 transitions, 191 flow [2022-12-12 15:37:28,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:37:28,292 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:37:28,292 INFO L214 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] [2022-12-12 15:37:28,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 15:37:28,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-12 15:37:28,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:37:28,298 INFO L85 PathProgramCache]: Analyzing trace with hash -292667862, now seen corresponding path program 2 times [2022-12-12 15:37:28,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:37:28,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870740613] [2022-12-12 15:37:28,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:37:28,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:37:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:37:28,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:37:28,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:37:28,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870740613] [2022-12-12 15:37:28,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870740613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:37:28,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:37:28,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 15:37:28,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086352935] [2022-12-12 15:37:28,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:37:28,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 15:37:28,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:37:28,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 15:37:28,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 15:37:28,491 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 61 [2022-12-12 15:37:28,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 68 transitions, 191 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:37:28,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:37:28,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 61 [2022-12-12 15:37:28,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:37:32,108 INFO L130 PetriNetUnfolder]: 47660/61383 cut-off events. [2022-12-12 15:37:32,109 INFO L131 PetriNetUnfolder]: For 13454/13457 co-relation queries the response was YES. [2022-12-12 15:37:32,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139562 conditions, 61383 events. 47660/61383 cut-off events. For 13454/13457 co-relation queries the response was YES. Maximal size of possible extension queue 1470. Compared 310410 event pairs, 15231 based on Foata normal form. 1/47109 useless extension candidates. Maximal degree in co-relation 49947. Up to 27089 conditions per place. [2022-12-12 15:37:32,334 INFO L137 encePairwiseOnDemand]: 54/61 looper letters, 121 selfloop transitions, 11 changer transitions 1/147 dead transitions. [2022-12-12 15:37:32,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 147 transitions, 666 flow [2022-12-12 15:37:32,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 15:37:32,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 15:37:32,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 183 transitions. [2022-12-12 15:37:32,336 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.75 [2022-12-12 15:37:32,336 INFO L175 Difference]: Start difference. First operand has 64 places, 68 transitions, 191 flow. Second operand 4 states and 183 transitions. [2022-12-12 15:37:32,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 147 transitions, 666 flow [2022-12-12 15:37:32,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 147 transitions, 666 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-12 15:37:32,341 INFO L231 Difference]: Finished difference. Result has 69 places, 75 transitions, 270 flow [2022-12-12 15:37:32,342 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=270, PETRI_PLACES=69, PETRI_TRANSITIONS=75} [2022-12-12 15:37:32,342 INFO L295 CegarLoopForPetriNet]: 71 programPoint places, -2 predicate places. [2022-12-12 15:37:32,342 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 75 transitions, 270 flow [2022-12-12 15:37:32,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:37:32,342 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:37:32,343 INFO L214 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] [2022-12-12 15:37:32,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 15:37:32,343 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-12 15:37:32,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:37:32,343 INFO L85 PathProgramCache]: Analyzing trace with hash 68474559, now seen corresponding path program 1 times [2022-12-12 15:37:32,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:37:32,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426075567] [2022-12-12 15:37:32,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:37:32,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:37:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:37:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:37:32,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:37:32,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426075567] [2022-12-12 15:37:32,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426075567] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:37:32,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:37:32,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 15:37:32,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167163848] [2022-12-12 15:37:32,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:37:32,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 15:37:32,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:37:32,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 15:37:32,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 15:37:32,547 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 61 [2022-12-12 15:37:32,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 75 transitions, 270 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:37:32,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:37:32,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 61 [2022-12-12 15:37:32,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:37:37,538 INFO L130 PetriNetUnfolder]: 62087/79682 cut-off events. [2022-12-12 15:37:37,538 INFO L131 PetriNetUnfolder]: For 40600/40600 co-relation queries the response was YES. [2022-12-12 15:37:37,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195694 conditions, 79682 events. 62087/79682 cut-off events. For 40600/40600 co-relation queries the response was YES. Maximal size of possible extension queue 1864. Compared 407301 event pairs, 43298 based on Foata normal form. 0/61999 useless extension candidates. Maximal degree in co-relation 81819. Up to 59707 conditions per place. [2022-12-12 15:37:37,828 INFO L137 encePairwiseOnDemand]: 55/61 looper letters, 126 selfloop transitions, 5 changer transitions 0/145 dead transitions. [2022-12-12 15:37:37,829 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 145 transitions, 761 flow [2022-12-12 15:37:37,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 15:37:37,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 15:37:37,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 182 transitions. [2022-12-12 15:37:37,831 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5967213114754099 [2022-12-12 15:37:37,831 INFO L175 Difference]: Start difference. First operand has 69 places, 75 transitions, 270 flow. Second operand 5 states and 182 transitions. [2022-12-12 15:37:37,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 145 transitions, 761 flow [2022-12-12 15:37:37,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 145 transitions, 757 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-12-12 15:37:37,861 INFO L231 Difference]: Finished difference. Result has 76 places, 79 transitions, 316 flow [2022-12-12 15:37:37,861 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=316, PETRI_PLACES=76, PETRI_TRANSITIONS=79} [2022-12-12 15:37:37,861 INFO L295 CegarLoopForPetriNet]: 71 programPoint places, 5 predicate places. [2022-12-12 15:37:37,861 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 79 transitions, 316 flow [2022-12-12 15:37:37,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:37:37,862 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:37:37,862 INFO L214 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] [2022-12-12 15:37:37,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 15:37:37,862 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-12 15:37:37,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:37:37,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1770814797, now seen corresponding path program 1 times [2022-12-12 15:37:37,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:37:37,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010858942] [2022-12-12 15:37:37,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:37:37,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:37:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:37:38,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:37:38,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:37:38,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010858942] [2022-12-12 15:37:38,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010858942] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:37:38,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:37:38,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 15:37:38,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540956260] [2022-12-12 15:37:38,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:37:38,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 15:37:38,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:37:38,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 15:37:38,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 15:37:38,042 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 61 [2022-12-12 15:37:38,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 79 transitions, 316 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:37:38,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:37:38,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 61 [2022-12-12 15:37:38,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:37:42,177 INFO L130 PetriNetUnfolder]: 52178/66778 cut-off events. [2022-12-12 15:37:42,177 INFO L131 PetriNetUnfolder]: For 38997/38997 co-relation queries the response was YES. [2022-12-12 15:37:42,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169242 conditions, 66778 events. 52178/66778 cut-off events. For 38997/38997 co-relation queries the response was YES. Maximal size of possible extension queue 1592. Compared 330182 event pairs, 36927 based on Foata normal form. 0/57324 useless extension candidates. Maximal degree in co-relation 155405. Up to 59707 conditions per place. [2022-12-12 15:37:42,443 INFO L137 encePairwiseOnDemand]: 55/61 looper letters, 60 selfloop transitions, 2 changer transitions 54/130 dead transitions. [2022-12-12 15:37:42,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 130 transitions, 685 flow [2022-12-12 15:37:42,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 15:37:42,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 15:37:42,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2022-12-12 15:37:42,444 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5672131147540984 [2022-12-12 15:37:42,444 INFO L175 Difference]: Start difference. First operand has 76 places, 79 transitions, 316 flow. Second operand 5 states and 173 transitions. [2022-12-12 15:37:42,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 130 transitions, 685 flow [2022-12-12 15:37:42,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 130 transitions, 681 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-12 15:37:42,462 INFO L231 Difference]: Finished difference. Result has 81 places, 76 transitions, 294 flow [2022-12-12 15:37:42,462 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=294, PETRI_PLACES=81, PETRI_TRANSITIONS=76} [2022-12-12 15:37:42,462 INFO L295 CegarLoopForPetriNet]: 71 programPoint places, 10 predicate places. [2022-12-12 15:37:42,462 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 76 transitions, 294 flow [2022-12-12 15:37:42,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:37:42,463 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:37:42,463 INFO L214 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] [2022-12-12 15:37:42,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 15:37:42,463 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-12 15:37:42,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:37:42,463 INFO L85 PathProgramCache]: Analyzing trace with hash -765153398, now seen corresponding path program 1 times [2022-12-12 15:37:42,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:37:42,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781976543] [2022-12-12 15:37:42,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:37:42,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:37:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:37:42,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:37:42,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:37:42,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781976543] [2022-12-12 15:37:42,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781976543] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:37:42,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417121526] [2022-12-12 15:37:42,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:37:42,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:37:42,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:37:42,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 15:37:42,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-12 15:37:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:37:42,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-12 15:37:42,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:37:42,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:37:42,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 15:37:42,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:37:42,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417121526] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 15:37:42,992 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 15:37:42,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-12-12 15:37:42,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083678035] [2022-12-12 15:37:42,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 15:37:42,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 15:37:42,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:37:42,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 15:37:42,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-12-12 15:37:42,993 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 61 [2022-12-12 15:37:42,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 76 transitions, 294 flow. Second operand has 11 states, 11 states have (on average 18.636363636363637) internal successors, (205), 11 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:37:42,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:37:42,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 61 [2022-12-12 15:37:42,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:37:48,032 INFO L130 PetriNetUnfolder]: 60023/77859 cut-off events. [2022-12-12 15:37:48,033 INFO L131 PetriNetUnfolder]: For 56426/56432 co-relation queries the response was YES. [2022-12-12 15:37:48,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202313 conditions, 77859 events. 60023/77859 cut-off events. For 56426/56432 co-relation queries the response was YES. Maximal size of possible extension queue 1874. Compared 423391 event pairs, 17452 based on Foata normal form. 4538/78015 useless extension candidates. Maximal degree in co-relation 202292. Up to 35390 conditions per place. [2022-12-12 15:37:48,351 INFO L137 encePairwiseOnDemand]: 53/61 looper letters, 165 selfloop transitions, 8 changer transitions 0/187 dead transitions. [2022-12-12 15:37:48,351 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 187 transitions, 1071 flow [2022-12-12 15:37:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 15:37:48,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 15:37:48,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 241 transitions. [2022-12-12 15:37:48,352 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5644028103044496 [2022-12-12 15:37:48,352 INFO L175 Difference]: Start difference. First operand has 81 places, 76 transitions, 294 flow. Second operand 7 states and 241 transitions. [2022-12-12 15:37:48,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 187 transitions, 1071 flow [2022-12-12 15:37:48,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 187 transitions, 1047 flow, removed 10 selfloop flow, removed 4 redundant places. [2022-12-12 15:37:48,385 INFO L231 Difference]: Finished difference. Result has 84 places, 82 transitions, 360 flow [2022-12-12 15:37:48,385 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=360, PETRI_PLACES=84, PETRI_TRANSITIONS=82} [2022-12-12 15:37:48,386 INFO L295 CegarLoopForPetriNet]: 71 programPoint places, 13 predicate places. [2022-12-12 15:37:48,386 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 82 transitions, 360 flow [2022-12-12 15:37:48,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.636363636363637) internal successors, (205), 11 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:37:48,386 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:37:48,386 INFO L214 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] [2022-12-12 15:37:48,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-12 15:37:48,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:37:48,593 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-12 15:37:48,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:37:48,593 INFO L85 PathProgramCache]: Analyzing trace with hash 980115180, now seen corresponding path program 1 times [2022-12-12 15:37:48,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:37:48,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932165061] [2022-12-12 15:37:48,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:37:48,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:37:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:37:48,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:37:48,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:37:48,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932165061] [2022-12-12 15:37:48,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932165061] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:37:48,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435430817] [2022-12-12 15:37:48,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:37:48,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:37:48,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:37:48,807 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 15:37:48,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-12 15:37:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:37:48,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-12 15:37:48,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:37:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:37:49,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 15:37:49,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:37:49,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435430817] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 15:37:49,060 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 15:37:49,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-12 15:37:49,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787202115] [2022-12-12 15:37:49,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 15:37:49,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-12 15:37:49,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:37:49,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-12 15:37:49,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-12-12 15:37:49,063 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 61 [2022-12-12 15:37:49,063 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 82 transitions, 360 flow. Second operand has 12 states, 12 states have (on average 18.583333333333332) internal successors, (223), 12 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:37:49,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:37:49,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 61 [2022-12-12 15:37:49,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:37:53,294 INFO L130 PetriNetUnfolder]: 48014/62591 cut-off events. [2022-12-12 15:37:53,295 INFO L131 PetriNetUnfolder]: For 73410/73410 co-relation queries the response was YES. [2022-12-12 15:37:53,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179171 conditions, 62591 events. 48014/62591 cut-off events. For 73410/73410 co-relation queries the response was YES. Maximal size of possible extension queue 1592. Compared 330379 event pairs, 14379 based on Foata normal form. 3132/62055 useless extension candidates. Maximal degree in co-relation 164307. Up to 33398 conditions per place. [2022-12-12 15:37:53,526 INFO L137 encePairwiseOnDemand]: 53/61 looper letters, 103 selfloop transitions, 5 changer transitions 54/176 dead transitions. [2022-12-12 15:37:53,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 176 transitions, 1035 flow [2022-12-12 15:37:53,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 15:37:53,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 15:37:53,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2022-12-12 15:37:53,528 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5433255269320844 [2022-12-12 15:37:53,528 INFO L175 Difference]: Start difference. First operand has 84 places, 82 transitions, 360 flow. Second operand 7 states and 232 transitions. [2022-12-12 15:37:53,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 176 transitions, 1035 flow [2022-12-12 15:37:53,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 176 transitions, 1019 flow, removed 7 selfloop flow, removed 2 redundant places. [2022-12-12 15:37:53,543 INFO L231 Difference]: Finished difference. Result has 92 places, 81 transitions, 354 flow [2022-12-12 15:37:53,543 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=354, PETRI_PLACES=92, PETRI_TRANSITIONS=81} [2022-12-12 15:37:53,544 INFO L295 CegarLoopForPetriNet]: 71 programPoint places, 21 predicate places. [2022-12-12 15:37:53,544 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 81 transitions, 354 flow [2022-12-12 15:37:53,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 18.583333333333332) internal successors, (223), 12 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:37:53,544 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:37:53,544 INFO L214 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:37:53,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-12 15:37:53,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-12 15:37:53,749 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-12 15:37:53,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:37:53,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1460704510, now seen corresponding path program 1 times [2022-12-12 15:37:53,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:37:53,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297899708] [2022-12-12 15:37:53,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:37:53,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:37:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:37:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 15:37:53,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:37:53,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297899708] [2022-12-12 15:37:53,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297899708] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:37:53,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21815601] [2022-12-12 15:37:53,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:37:53,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:37:53,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:37:53,923 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 15:37:53,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-12 15:37:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:37:54,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-12 15:37:54,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:37:54,151 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 15:37:54,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 15:37:54,215 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 15:37:54,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21815601] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 15:37:54,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 15:37:54,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2022-12-12 15:37:54,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388262079] [2022-12-12 15:37:54,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:37:54,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 15:37:54,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:37:54,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 15:37:54,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-12-12 15:37:54,219 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 61 [2022-12-12 15:37:54,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 81 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:37:54,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:37:54,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 61 [2022-12-12 15:37:54,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:37:57,254 INFO L130 PetriNetUnfolder]: 32966/42656 cut-off events. [2022-12-12 15:37:57,255 INFO L131 PetriNetUnfolder]: For 68763/68763 co-relation queries the response was YES. [2022-12-12 15:37:57,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137718 conditions, 42656 events. 32966/42656 cut-off events. For 68763/68763 co-relation queries the response was YES. Maximal size of possible extension queue 1088. Compared 208999 event pairs, 15921 based on Foata normal form. 1260/41828 useless extension candidates. Maximal degree in co-relation 137677. Up to 38208 conditions per place. [2022-12-12 15:37:57,438 INFO L137 encePairwiseOnDemand]: 54/61 looper letters, 92 selfloop transitions, 7 changer transitions 0/113 dead transitions. [2022-12-12 15:37:57,438 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 113 transitions, 693 flow [2022-12-12 15:37:57,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 15:37:57,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 15:37:57,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2022-12-12 15:37:57,439 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.43989071038251365 [2022-12-12 15:37:57,439 INFO L175 Difference]: Start difference. First operand has 92 places, 81 transitions, 354 flow. Second operand 6 states and 161 transitions. [2022-12-12 15:37:57,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 113 transitions, 693 flow [2022-12-12 15:37:57,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 113 transitions, 651 flow, removed 19 selfloop flow, removed 7 redundant places. [2022-12-12 15:37:57,463 INFO L231 Difference]: Finished difference. Result has 87 places, 83 transitions, 360 flow [2022-12-12 15:37:57,463 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=360, PETRI_PLACES=87, PETRI_TRANSITIONS=83} [2022-12-12 15:37:57,464 INFO L295 CegarLoopForPetriNet]: 71 programPoint places, 16 predicate places. [2022-12-12 15:37:57,464 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 83 transitions, 360 flow [2022-12-12 15:37:57,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:37:57,464 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:37:57,464 INFO L214 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:37:57,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-12 15:37:57,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:37:57,670 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-12 15:37:57,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:37:57,670 INFO L85 PathProgramCache]: Analyzing trace with hash 551715918, now seen corresponding path program 1 times [2022-12-12 15:37:57,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:37:57,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301403408] [2022-12-12 15:37:57,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:37:57,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:37:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:37:57,826 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:37:57,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:37:57,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301403408] [2022-12-12 15:37:57,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301403408] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:37:57,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166689327] [2022-12-12 15:37:57,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:37:57,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:37:57,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:37:57,829 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 15:37:57,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-12 15:37:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:37:57,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-12 15:37:57,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:37:58,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:37:58,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 15:37:58,083 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:37:58,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166689327] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 15:37:58,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 15:37:58,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2022-12-12 15:37:58,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126745689] [2022-12-12 15:37:58,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:37:58,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 15:37:58,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:37:58,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 15:37:58,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-12-12 15:37:58,085 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 61 [2022-12-12 15:37:58,085 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 83 transitions, 360 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:37:58,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:37:58,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 61 [2022-12-12 15:37:58,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:38:00,247 INFO L130 PetriNetUnfolder]: 25016/32285 cut-off events. [2022-12-12 15:38:00,247 INFO L131 PetriNetUnfolder]: For 45904/45922 co-relation queries the response was YES. [2022-12-12 15:38:00,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103394 conditions, 32285 events. 25016/32285 cut-off events. For 45904/45922 co-relation queries the response was YES. Maximal size of possible extension queue 806. Compared 149447 event pairs, 13509 based on Foata normal form. 878/31790 useless extension candidates. Maximal degree in co-relation 103355. Up to 28920 conditions per place. [2022-12-12 15:38:00,528 INFO L137 encePairwiseOnDemand]: 54/61 looper letters, 96 selfloop transitions, 7 changer transitions 0/117 dead transitions. [2022-12-12 15:38:00,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 117 transitions, 714 flow [2022-12-12 15:38:00,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 15:38:00,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 15:38:00,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2022-12-12 15:38:00,529 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.43989071038251365 [2022-12-12 15:38:00,529 INFO L175 Difference]: Start difference. First operand has 87 places, 83 transitions, 360 flow. Second operand 6 states and 161 transitions. [2022-12-12 15:38:00,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 117 transitions, 714 flow [2022-12-12 15:38:00,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 117 transitions, 689 flow, removed 6 selfloop flow, removed 4 redundant places. [2022-12-12 15:38:00,552 INFO L231 Difference]: Finished difference. Result has 89 places, 85 transitions, 376 flow [2022-12-12 15:38:00,552 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=376, PETRI_PLACES=89, PETRI_TRANSITIONS=85} [2022-12-12 15:38:00,552 INFO L295 CegarLoopForPetriNet]: 71 programPoint places, 18 predicate places. [2022-12-12 15:38:00,552 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 85 transitions, 376 flow [2022-12-12 15:38:00,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:38:00,553 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:38:00,553 INFO L214 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:38:00,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-12 15:38:00,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:38:00,757 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-12 15:38:00,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:38:00,757 INFO L85 PathProgramCache]: Analyzing trace with hash -842128725, now seen corresponding path program 1 times [2022-12-12 15:38:00,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:38:00,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432608274] [2022-12-12 15:38:00,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:38:00,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:38:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:38:01,817 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 15:38:01,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:38:01,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432608274] [2022-12-12 15:38:01,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432608274] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:38:01,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716752009] [2022-12-12 15:38:01,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:38:01,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:38:01,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:38:01,819 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 15:38:01,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-12 15:38:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:38:01,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 62 conjunts are in the unsatisfiable core [2022-12-12 15:38:01,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:38:02,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:38:02,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-12 15:38:02,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:38:02,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-12 15:38:02,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:38:02,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-12 15:38:02,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:38:02,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-12 15:38:02,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-12 15:38:02,471 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 15:38:02,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 15:38:02,550 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_498 (Array Int Int))) (= (+ c_~s_6~0 (select (select (store |c_#memory_int| |c_thread4Thread1of1ForFork0_~#t6~0.base| v_ArrVal_498) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0)))) c_~s_2~0)) is different from false [2022-12-12 15:38:03,240 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_79| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_79|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_89| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_89|)) (forall ((v_ArrVal_498 (Array Int Int)) (v_ArrVal_497 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_79| v_ArrVal_497) |v_thread4Thread1of1ForFork0_~#t6~0.base_89| v_ArrVal_498) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) c_~s_2~0)))))) is different from false [2022-12-12 15:38:03,373 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_89| Int) (v_ArrVal_496 (Array Int Int)) (v_ArrVal_498 (Array Int Int)) (v_ArrVal_497 (Array Int Int)) (|v_thread4Thread1of1ForFork0_~#t5~0.base_79| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_89|)) (= (+ c_~t_4~0 c_~s_2~0) (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_496) |v_thread4Thread1of1ForFork0_~#t5~0.base_79| v_ArrVal_497) |v_thread4Thread1of1ForFork0_~#t6~0.base_89| v_ArrVal_498) c_~X_0~0.base) (+ c_~X_0~0.offset 4))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_79|)))) is different from false [2022-12-12 15:38:05,432 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_89| Int) (v_ArrVal_496 (Array Int Int)) (v_ArrVal_495 (Array Int Int)) (v_ArrVal_498 (Array Int Int)) (v_ArrVal_497 (Array Int Int)) (|v_thread4Thread1of1ForFork0_~#t5~0.base_79| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_89|)) (= (+ c_~t_4~0 c_~s_2~0) (select (select (store (store (store (store |c_#memory_int| |c_thread1Thread1of1ForFork5_~#t3~0.base| v_ArrVal_495) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_496) |v_thread4Thread1of1ForFork0_~#t5~0.base_79| v_ArrVal_497) |v_thread4Thread1of1ForFork0_~#t6~0.base_89| v_ArrVal_498) c_~X_0~0.base) (+ c_~X_0~0.offset 4))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_79|)))) is different from false [2022-12-12 15:38:05,474 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 15:38:05,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 7190 treesize of output 4800 [2022-12-12 15:38:05,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4790 treesize of output 4534 [2022-12-12 15:38:05,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4534 treesize of output 4022 [2022-12-12 15:38:05,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2043 treesize of output 1979 [2022-12-12 15:38:05,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3958 treesize of output 3830 [2022-12-12 15:38:09,891 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 1 not checked. [2022-12-12 15:38:09,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716752009] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 15:38:09,891 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 15:38:09,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 14] total 36 [2022-12-12 15:38:09,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610254022] [2022-12-12 15:38:09,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 15:38:09,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-12-12 15:38:09,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:38:09,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-12-12 15:38:09,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=956, Unknown=49, NotChecked=268, Total=1406 [2022-12-12 15:38:09,893 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 61 [2022-12-12 15:38:09,893 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 85 transitions, 376 flow. Second operand has 38 states, 38 states have (on average 8.68421052631579) internal successors, (330), 38 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:38:09,893 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:38:09,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 61 [2022-12-12 15:38:09,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:38:27,249 INFO L130 PetriNetUnfolder]: 87520/111774 cut-off events. [2022-12-12 15:38:27,249 INFO L131 PetriNetUnfolder]: For 143813/143813 co-relation queries the response was YES. [2022-12-12 15:38:27,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353192 conditions, 111774 events. 87520/111774 cut-off events. For 143813/143813 co-relation queries the response was YES. Maximal size of possible extension queue 2253. Compared 580509 event pairs, 12218 based on Foata normal form. 1/107784 useless extension candidates. Maximal degree in co-relation 353152. Up to 42275 conditions per place. [2022-12-12 15:38:27,797 INFO L137 encePairwiseOnDemand]: 22/61 looper letters, 644 selfloop transitions, 166 changer transitions 14/830 dead transitions. [2022-12-12 15:38:27,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 830 transitions, 4877 flow [2022-12-12 15:38:27,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-12 15:38:27,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-12 15:38:27,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 895 transitions. [2022-12-12 15:38:27,799 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5059355568117581 [2022-12-12 15:38:27,799 INFO L175 Difference]: Start difference. First operand has 89 places, 85 transitions, 376 flow. Second operand 29 states and 895 transitions. [2022-12-12 15:38:27,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 830 transitions, 4877 flow [2022-12-12 15:38:27,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 830 transitions, 4857 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-12-12 15:38:27,892 INFO L231 Difference]: Finished difference. Result has 137 places, 252 transitions, 1935 flow [2022-12-12 15:38:27,893 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=1935, PETRI_PLACES=137, PETRI_TRANSITIONS=252} [2022-12-12 15:38:27,893 INFO L295 CegarLoopForPetriNet]: 71 programPoint places, 66 predicate places. [2022-12-12 15:38:27,893 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 252 transitions, 1935 flow [2022-12-12 15:38:27,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 8.68421052631579) internal successors, (330), 38 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:38:27,893 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:38:27,894 INFO L214 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:38:27,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-12 15:38:28,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:38:28,099 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-12 15:38:28,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:38:28,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1573724935, now seen corresponding path program 2 times [2022-12-12 15:38:28,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:38:28,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038412043] [2022-12-12 15:38:28,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:38:28,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:38:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:38:29,330 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:38:29,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:38:29,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038412043] [2022-12-12 15:38:29,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038412043] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:38:29,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293294689] [2022-12-12 15:38:29,331 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-12 15:38:29,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:38:29,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:38:29,333 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 15:38:29,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-12 15:38:29,500 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-12 15:38:29,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 15:38:29,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 64 conjunts are in the unsatisfiable core [2022-12-12 15:38:29,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:38:29,527 INFO L321 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-12-12 15:38:29,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 27 [2022-12-12 15:38:29,588 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-12 15:38:29,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-12 15:38:29,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-12 15:38:29,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:38:29,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-12 15:38:29,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-12 15:38:29,868 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 15:38:29,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 15:38:30,004 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_thread1Thread1of1ForFork5_~#t3~0.base_89| Int) (v_ArrVal_577 (Array Int Int)) (v_ArrVal_576 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork5_~#t3~0.base_89|)) (= c_~s_6~0 (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork5_~#t2~0.base| v_ArrVal_576) |v_thread1Thread1of1ForFork5_~#t3~0.base_89| v_ArrVal_577) c_~X_0~0.base) (+ c_~X_0~0.offset 4))))) is different from false [2022-12-12 15:38:30,052 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_thread1Thread1of1ForFork5_~#t3~0.base_89| Int) (v_ArrVal_577 (Array Int Int)) (v_ArrVal_576 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork5_~#t3~0.base_89|)) (= (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork5_~#t2~0.base| v_ArrVal_576) |v_thread1Thread1of1ForFork5_~#t3~0.base_89| v_ArrVal_577) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 c_~t_8~0)))) is different from false [2022-12-12 15:38:30,061 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 15:38:30,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 72 [2022-12-12 15:38:30,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 54 [2022-12-12 15:38:30,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-12-12 15:38:30,267 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 1 not checked. [2022-12-12 15:38:30,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293294689] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 15:38:30,267 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 15:38:30,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 11] total 32 [2022-12-12 15:38:30,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189415846] [2022-12-12 15:38:30,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 15:38:30,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-12-12 15:38:30,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:38:30,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-12-12 15:38:30,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=864, Unknown=13, NotChecked=122, Total=1122 [2022-12-12 15:38:30,269 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 61 [2022-12-12 15:38:30,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 252 transitions, 1935 flow. Second operand has 34 states, 34 states have (on average 9.117647058823529) internal successors, (310), 34 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:38:30,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:38:30,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 61 [2022-12-12 15:38:30,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand