/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-commit-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 00:43:05,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 00:43:05,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 00:43:05,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 00:43:05,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 00:43:05,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 00:43:05,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 00:43:05,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 00:43:05,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 00:43:05,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 00:43:05,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 00:43:05,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 00:43:05,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 00:43:05,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 00:43:05,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 00:43:05,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 00:43:05,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 00:43:05,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 00:43:05,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 00:43:05,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 00:43:05,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 00:43:05,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 00:43:05,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 00:43:05,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 00:43:05,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 00:43:05,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 00:43:05,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 00:43:05,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 00:43:05,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 00:43:05,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 00:43:05,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 00:43:05,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 00:43:05,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 00:43:05,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 00:43:05,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 00:43:05,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 00:43:05,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 00:43:05,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 00:43:05,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 00:43:05,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 00:43:05,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 00:43:05,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-12 00:43:05,776 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 00:43:05,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 00:43:05,777 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 00:43:05,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 00:43:05,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 00:43:05,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 00:43:05,777 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 00:43:05,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 00:43:05,778 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 00:43:05,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 00:43:05,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 00:43:05,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 00:43:05,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 00:43:05,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 00:43:05,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 00:43:05,778 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 00:43:05,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 00:43:05,778 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 00:43:05,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 00:43:05,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 00:43:05,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 00:43:05,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 00:43:05,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 00:43:05,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 00:43:05,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 00:43:05,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 00:43:05,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 00:43:05,779 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 00:43:05,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 00:43:05,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 00:43:05,780 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 00:43:05,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 00:43:06,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 00:43:06,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 00:43:06,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 00:43:06,094 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 00:43:06,099 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 00:43:06,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-commit-1.wvr.c [2022-12-12 00:43:07,149 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 00:43:07,329 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 00:43:07,343 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-commit-1.wvr.c [2022-12-12 00:43:07,348 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/457688280/95242161bf0d41adab3844c8d2c8fff5/FLAGdcd11a8f0 [2022-12-12 00:43:07,360 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/457688280/95242161bf0d41adab3844c8d2c8fff5 [2022-12-12 00:43:07,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 00:43:07,362 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 00:43:07,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 00:43:07,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 00:43:07,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 00:43:07,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:43:07" (1/1) ... [2022-12-12 00:43:07,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@502ebe6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:43:07, skipping insertion in model container [2022-12-12 00:43:07,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:43:07" (1/1) ... [2022-12-12 00:43:07,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 00:43:07,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 00:43:07,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:43:07,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:43:07,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:43:07,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:43:07,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:43:07,480 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:43:07,480 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:43:07,481 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:43:07,483 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:43:07,484 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:43:07,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:43:07,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:43:07,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:43:07,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:43:07,487 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:43:07,487 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:43:07,493 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/popl20-commit-1.wvr.c[4604,4617] [2022-12-12 00:43:07,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 00:43:07,504 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 00:43:07,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:43:07,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:43:07,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:43:07,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:43:07,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:43:07,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:43:07,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:43:07,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:43:07,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:43:07,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:43:07,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:43:07,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:43:07,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:43:07,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:43:07,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:43:07,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:43:07,539 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/popl20-commit-1.wvr.c[4604,4617] [2022-12-12 00:43:07,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 00:43:07,552 INFO L208 MainTranslator]: Completed translation [2022-12-12 00:43:07,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:43:07 WrapperNode [2022-12-12 00:43:07,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 00:43:07,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 00:43:07,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 00:43:07,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 00:43:07,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:43:07" (1/1) ... [2022-12-12 00:43:07,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:43:07" (1/1) ... [2022-12-12 00:43:07,599 INFO L138 Inliner]: procedures = 25, calls = 68, calls flagged for inlining = 20, calls inlined = 24, statements flattened = 333 [2022-12-12 00:43:07,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 00:43:07,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 00:43:07,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 00:43:07,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 00:43:07,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:43:07" (1/1) ... [2022-12-12 00:43:07,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:43:07" (1/1) ... [2022-12-12 00:43:07,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:43:07" (1/1) ... [2022-12-12 00:43:07,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:43:07" (1/1) ... [2022-12-12 00:43:07,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:43:07" (1/1) ... [2022-12-12 00:43:07,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:43:07" (1/1) ... [2022-12-12 00:43:07,637 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:43:07" (1/1) ... [2022-12-12 00:43:07,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:43:07" (1/1) ... [2022-12-12 00:43:07,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 00:43:07,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 00:43:07,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 00:43:07,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 00:43:07,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:43:07" (1/1) ... [2022-12-12 00:43:07,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 00:43:07,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 00:43:07,674 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 00:43:07,693 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 00:43:07,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 00:43:07,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 00:43:07,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 00:43:07,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 00:43:07,728 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 00:43:07,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 00:43:07,729 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 00:43:07,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 00:43:07,729 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 00:43:07,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 00:43:07,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 00:43:07,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 00:43:07,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 00:43:07,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 00:43:07,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 00:43:07,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 00:43:07,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 00:43:07,731 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 00:43:07,872 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 00:43:07,873 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 00:43:08,276 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 00:43:08,532 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 00:43:08,533 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-12 00:43:08,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:43:08 BoogieIcfgContainer [2022-12-12 00:43:08,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 00:43:08,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 00:43:08,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 00:43:08,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 00:43:08,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 12:43:07" (1/3) ... [2022-12-12 00:43:08,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fd5a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:43:08, skipping insertion in model container [2022-12-12 00:43:08,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:43:07" (2/3) ... [2022-12-12 00:43:08,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fd5a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:43:08, skipping insertion in model container [2022-12-12 00:43:08,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:43:08" (3/3) ... [2022-12-12 00:43:08,550 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-1.wvr.c [2022-12-12 00:43:08,563 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 00:43:08,564 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 00:43:08,564 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 00:43:08,689 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 00:43:08,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 225 places, 234 transitions, 492 flow [2022-12-12 00:43:08,823 INFO L130 PetriNetUnfolder]: 19/231 cut-off events. [2022-12-12 00:43:08,823 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 00:43:08,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 231 events. 19/231 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 132 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 196. Up to 2 conditions per place. [2022-12-12 00:43:08,828 INFO L82 GeneralOperation]: Start removeDead. Operand has 225 places, 234 transitions, 492 flow [2022-12-12 00:43:08,832 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 212 places, 221 transitions, 460 flow [2022-12-12 00:43:08,840 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 00:43:08,846 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;@44bfb0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 00:43:08,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 00:43:08,883 INFO L130 PetriNetUnfolder]: 19/220 cut-off events. [2022-12-12 00:43:08,883 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 00:43:08,883 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:43:08,884 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:08,884 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:43:08,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:43:08,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1404078884, now seen corresponding path program 1 times [2022-12-12 00:43:08,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:43:08,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806018450] [2022-12-12 00:43:08,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:43:08,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:43:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:43:09,207 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 00:43:09,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:43:09,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806018450] [2022-12-12 00:43:09,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806018450] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:43:09,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:43:09,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 00:43:09,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809050017] [2022-12-12 00:43:09,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:43:09,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-12 00:43:09,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:43:09,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-12 00:43:09,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-12 00:43:09,256 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 234 [2022-12-12 00:43:09,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 221 transitions, 460 flow. Second operand has 2 states, 2 states have (on average 210.5) internal successors, (421), 2 states have internal predecessors, (421), 0 states have call successors, (0), 0 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 00:43:09,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:43:09,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 234 [2022-12-12 00:43:09,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:43:09,367 INFO L130 PetriNetUnfolder]: 66/292 cut-off events. [2022-12-12 00:43:09,367 INFO L131 PetriNetUnfolder]: For 34/35 co-relation queries the response was YES. [2022-12-12 00:43:09,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 292 events. 66/292 cut-off events. For 34/35 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 437 event pairs, 31 based on Foata normal form. 42/312 useless extension candidates. Maximal degree in co-relation 233. Up to 99 conditions per place. [2022-12-12 00:43:09,372 INFO L137 encePairwiseOnDemand]: 221/234 looper letters, 14 selfloop transitions, 0 changer transitions 7/208 dead transitions. [2022-12-12 00:43:09,372 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 208 transitions, 462 flow [2022-12-12 00:43:09,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-12 00:43:09,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-12 00:43:09,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 439 transitions. [2022-12-12 00:43:09,387 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.938034188034188 [2022-12-12 00:43:09,390 INFO L295 CegarLoopForPetriNet]: 212 programPoint places, 1 predicate places. [2022-12-12 00:43:09,390 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 208 transitions, 462 flow [2022-12-12 00:43:09,395 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 206 places, 201 transitions, 448 flow [2022-12-12 00:43:09,396 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 201 transitions, 448 flow [2022-12-12 00:43:09,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 210.5) internal successors, (421), 2 states have internal predecessors, (421), 0 states have call successors, (0), 0 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 00:43:09,397 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:43:09,397 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:09,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 00:43:09,399 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:43:09,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:43:09,404 INFO L85 PathProgramCache]: Analyzing trace with hash -140577876, now seen corresponding path program 1 times [2022-12-12 00:43:09,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:43:09,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159486805] [2022-12-12 00:43:09,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:43:09,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:43:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:43:09,914 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 00:43:09,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:43:09,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159486805] [2022-12-12 00:43:09,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159486805] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:43:09,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:43:09,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 00:43:09,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627563825] [2022-12-12 00:43:09,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:43:09,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 00:43:09,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:43:09,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 00:43:09,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 00:43:09,920 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 234 [2022-12-12 00:43:09,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 201 transitions, 448 flow. Second operand has 5 states, 5 states have (on average 176.2) internal successors, (881), 5 states have internal predecessors, (881), 0 states have call successors, (0), 0 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 00:43:09,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:43:09,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 234 [2022-12-12 00:43:09,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:43:10,065 INFO L130 PetriNetUnfolder]: 79/374 cut-off events. [2022-12-12 00:43:10,065 INFO L131 PetriNetUnfolder]: For 125/197 co-relation queries the response was YES. [2022-12-12 00:43:10,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 695 conditions, 374 events. 79/374 cut-off events. For 125/197 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 920 event pairs, 27 based on Foata normal form. 1/344 useless extension candidates. Maximal degree in co-relation 385. Up to 121 conditions per place. [2022-12-12 00:43:10,070 INFO L137 encePairwiseOnDemand]: 227/234 looper letters, 48 selfloop transitions, 4 changer transitions 4/213 dead transitions. [2022-12-12 00:43:10,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 213 transitions, 617 flow [2022-12-12 00:43:10,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 00:43:10,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 00:43:10,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 902 transitions. [2022-12-12 00:43:10,074 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.770940170940171 [2022-12-12 00:43:10,075 INFO L295 CegarLoopForPetriNet]: 212 programPoint places, -2 predicate places. [2022-12-12 00:43:10,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 213 transitions, 617 flow [2022-12-12 00:43:10,078 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 208 places, 209 transitions, 596 flow [2022-12-12 00:43:10,078 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 209 transitions, 596 flow [2022-12-12 00:43:10,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 176.2) internal successors, (881), 5 states have internal predecessors, (881), 0 states have call successors, (0), 0 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 00:43:10,079 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:43:10,079 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:10,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 00:43:10,079 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:43:10,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:43:10,080 INFO L85 PathProgramCache]: Analyzing trace with hash -779527799, now seen corresponding path program 1 times [2022-12-12 00:43:10,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:43:10,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382945589] [2022-12-12 00:43:10,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:43:10,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:43:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:43:10,309 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 00:43:10,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:43:10,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382945589] [2022-12-12 00:43:10,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382945589] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:43:10,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:43:10,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 00:43:10,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137077900] [2022-12-12 00:43:10,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:43:10,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 00:43:10,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:43:10,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 00:43:10,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-12 00:43:10,312 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 234 [2022-12-12 00:43:10,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 209 transitions, 596 flow. Second operand has 6 states, 6 states have (on average 173.66666666666666) internal successors, (1042), 6 states have internal predecessors, (1042), 0 states have call successors, (0), 0 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 00:43:10,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:43:10,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 234 [2022-12-12 00:43:10,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:43:10,478 INFO L130 PetriNetUnfolder]: 83/517 cut-off events. [2022-12-12 00:43:10,478 INFO L131 PetriNetUnfolder]: For 287/407 co-relation queries the response was YES. [2022-12-12 00:43:10,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 517 events. 83/517 cut-off events. For 287/407 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1484 event pairs, 27 based on Foata normal form. 13/494 useless extension candidates. Maximal degree in co-relation 557. Up to 144 conditions per place. [2022-12-12 00:43:10,480 INFO L137 encePairwiseOnDemand]: 222/234 looper letters, 56 selfloop transitions, 8 changer transitions 33/246 dead transitions. [2022-12-12 00:43:10,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 246 transitions, 925 flow [2022-12-12 00:43:10,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 00:43:10,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 00:43:10,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1602 transitions. [2022-12-12 00:43:10,483 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7606837606837606 [2022-12-12 00:43:10,483 INFO L295 CegarLoopForPetriNet]: 212 programPoint places, 4 predicate places. [2022-12-12 00:43:10,483 INFO L82 GeneralOperation]: Start removeDead. Operand has 216 places, 246 transitions, 925 flow [2022-12-12 00:43:10,485 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 214 places, 213 transitions, 732 flow [2022-12-12 00:43:10,485 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 213 transitions, 732 flow [2022-12-12 00:43:10,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.66666666666666) internal successors, (1042), 6 states have internal predecessors, (1042), 0 states have call successors, (0), 0 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 00:43:10,486 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:43:10,486 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:10,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 00:43:10,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:43:10,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:43:10,487 INFO L85 PathProgramCache]: Analyzing trace with hash 840674761, now seen corresponding path program 1 times [2022-12-12 00:43:10,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:43:10,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474056987] [2022-12-12 00:43:10,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:43:10,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:43:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:43:10,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 00:43:10,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:43:10,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474056987] [2022-12-12 00:43:10,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474056987] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:43:10,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:43:10,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 00:43:10,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506518742] [2022-12-12 00:43:10,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:43:10,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 00:43:10,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:43:10,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 00:43:10,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 00:43:10,639 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 234 [2022-12-12 00:43:10,640 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 213 transitions, 732 flow. Second operand has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 0 states have call successors, (0), 0 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 00:43:10,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:43:10,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 234 [2022-12-12 00:43:10,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:43:10,742 INFO L130 PetriNetUnfolder]: 84/431 cut-off events. [2022-12-12 00:43:10,742 INFO L131 PetriNetUnfolder]: For 441/669 co-relation queries the response was YES. [2022-12-12 00:43:10,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1109 conditions, 431 events. 84/431 cut-off events. For 441/669 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1293 event pairs, 33 based on Foata normal form. 13/412 useless extension candidates. Maximal degree in co-relation 639. Up to 160 conditions per place. [2022-12-12 00:43:10,744 INFO L137 encePairwiseOnDemand]: 231/234 looper letters, 32 selfloop transitions, 2 changer transitions 0/221 dead transitions. [2022-12-12 00:43:10,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 221 transitions, 879 flow [2022-12-12 00:43:10,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 00:43:10,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 00:43:10,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 634 transitions. [2022-12-12 00:43:10,746 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9031339031339032 [2022-12-12 00:43:10,748 INFO L295 CegarLoopForPetriNet]: 212 programPoint places, 4 predicate places. [2022-12-12 00:43:10,748 INFO L82 GeneralOperation]: Start removeDead. Operand has 216 places, 221 transitions, 879 flow [2022-12-12 00:43:10,750 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 216 places, 221 transitions, 879 flow [2022-12-12 00:43:10,750 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 221 transitions, 879 flow [2022-12-12 00:43:10,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 0 states have call successors, (0), 0 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 00:43:10,751 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:43:10,751 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:10,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 00:43:10,754 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:43:10,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:43:10,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1794491905, now seen corresponding path program 1 times [2022-12-12 00:43:10,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:43:10,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669315252] [2022-12-12 00:43:10,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:43:10,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:43:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:43:10,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 00:43:10,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:43:10,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669315252] [2022-12-12 00:43:10,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669315252] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:43:10,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:43:10,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 00:43:10,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722083283] [2022-12-12 00:43:10,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:43:10,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 00:43:10,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:43:10,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 00:43:10,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 00:43:10,945 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 234 [2022-12-12 00:43:10,946 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 221 transitions, 879 flow. Second operand has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 0 states have call successors, (0), 0 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 00:43:10,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:43:10,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 234 [2022-12-12 00:43:10,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:43:11,051 INFO L130 PetriNetUnfolder]: 96/421 cut-off events. [2022-12-12 00:43:11,052 INFO L131 PetriNetUnfolder]: For 550/776 co-relation queries the response was YES. [2022-12-12 00:43:11,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1337 conditions, 421 events. 96/421 cut-off events. For 550/776 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1213 event pairs, 5 based on Foata normal form. 9/408 useless extension candidates. Maximal degree in co-relation 917. Up to 179 conditions per place. [2022-12-12 00:43:11,056 INFO L137 encePairwiseOnDemand]: 231/234 looper letters, 31 selfloop transitions, 2 changer transitions 2/222 dead transitions. [2022-12-12 00:43:11,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 222 transitions, 956 flow [2022-12-12 00:43:11,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 00:43:11,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 00:43:11,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 636 transitions. [2022-12-12 00:43:11,058 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.905982905982906 [2022-12-12 00:43:11,060 INFO L295 CegarLoopForPetriNet]: 212 programPoint places, 6 predicate places. [2022-12-12 00:43:11,061 INFO L82 GeneralOperation]: Start removeDead. Operand has 218 places, 222 transitions, 956 flow [2022-12-12 00:43:11,065 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 218 places, 220 transitions, 926 flow [2022-12-12 00:43:11,065 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 220 transitions, 926 flow [2022-12-12 00:43:11,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 0 states have call successors, (0), 0 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 00:43:11,066 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:43:11,066 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:11,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 00:43:11,067 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:43:11,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:43:11,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1369216360, now seen corresponding path program 1 times [2022-12-12 00:43:11,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:43:11,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507741576] [2022-12-12 00:43:11,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:43:11,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:43:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:43:11,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 00:43:11,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:43:11,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507741576] [2022-12-12 00:43:11,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507741576] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:43:11,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:43:11,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 00:43:11,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48553025] [2022-12-12 00:43:11,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:43:11,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 00:43:11,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:43:11,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 00:43:11,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-12 00:43:11,288 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 234 [2022-12-12 00:43:11,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 220 transitions, 926 flow. Second operand has 6 states, 6 states have (on average 174.66666666666666) internal successors, (1048), 6 states have internal predecessors, (1048), 0 states have call successors, (0), 0 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 00:43:11,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:43:11,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 234 [2022-12-12 00:43:11,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:43:11,537 INFO L130 PetriNetUnfolder]: 117/580 cut-off events. [2022-12-12 00:43:11,537 INFO L131 PetriNetUnfolder]: For 1066/1557 co-relation queries the response was YES. [2022-12-12 00:43:11,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1983 conditions, 580 events. 117/580 cut-off events. For 1066/1557 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2016 event pairs, 18 based on Foata normal form. 7/553 useless extension candidates. Maximal degree in co-relation 1056. Up to 234 conditions per place. [2022-12-12 00:43:11,541 INFO L137 encePairwiseOnDemand]: 224/234 looper letters, 67 selfloop transitions, 8 changer transitions 28/252 dead transitions. [2022-12-12 00:43:11,541 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 252 transitions, 1405 flow [2022-12-12 00:43:11,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 00:43:11,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 00:43:11,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1591 transitions. [2022-12-12 00:43:11,547 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7554605887939221 [2022-12-12 00:43:11,547 INFO L295 CegarLoopForPetriNet]: 212 programPoint places, 14 predicate places. [2022-12-12 00:43:11,548 INFO L82 GeneralOperation]: Start removeDead. Operand has 226 places, 252 transitions, 1405 flow [2022-12-12 00:43:11,550 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 224 transitions, 1092 flow [2022-12-12 00:43:11,551 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 224 transitions, 1092 flow [2022-12-12 00:43:11,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.66666666666666) internal successors, (1048), 6 states have internal predecessors, (1048), 0 states have call successors, (0), 0 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 00:43:11,551 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:43:11,551 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:11,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 00:43:11,552 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:43:11,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:43:11,552 INFO L85 PathProgramCache]: Analyzing trace with hash -18066064, now seen corresponding path program 1 times [2022-12-12 00:43:11,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:43:11,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154344264] [2022-12-12 00:43:11,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:43:11,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:43:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:43:11,687 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 00:43:11,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:43:11,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154344264] [2022-12-12 00:43:11,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154344264] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:43:11,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:43:11,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 00:43:11,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988793873] [2022-12-12 00:43:11,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:43:11,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 00:43:11,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:43:11,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 00:43:11,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-12 00:43:11,690 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 234 [2022-12-12 00:43:11,691 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 224 transitions, 1092 flow. Second operand has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 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 00:43:11,691 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:43:11,691 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 234 [2022-12-12 00:43:11,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:43:11,839 INFO L130 PetriNetUnfolder]: 97/468 cut-off events. [2022-12-12 00:43:11,840 INFO L131 PetriNetUnfolder]: For 1128/1494 co-relation queries the response was YES. [2022-12-12 00:43:11,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1846 conditions, 468 events. 97/468 cut-off events. For 1128/1494 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1371 event pairs, 18 based on Foata normal form. 4/449 useless extension candidates. Maximal degree in co-relation 1163. Up to 193 conditions per place. [2022-12-12 00:43:11,843 INFO L137 encePairwiseOnDemand]: 226/234 looper letters, 73 selfloop transitions, 6 changer transitions 9/237 dead transitions. [2022-12-12 00:43:11,843 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 237 transitions, 1425 flow [2022-12-12 00:43:11,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 00:43:11,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 00:43:11,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1239 transitions. [2022-12-12 00:43:11,845 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7564102564102564 [2022-12-12 00:43:11,845 INFO L295 CegarLoopForPetriNet]: 212 programPoint places, 18 predicate places. [2022-12-12 00:43:11,845 INFO L82 GeneralOperation]: Start removeDead. Operand has 230 places, 237 transitions, 1425 flow [2022-12-12 00:43:11,848 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 228 transitions, 1274 flow [2022-12-12 00:43:11,848 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 228 transitions, 1274 flow [2022-12-12 00:43:11,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 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 00:43:11,849 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:43:11,849 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:11,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 00:43:11,849 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:43:11,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:43:11,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1645668096, now seen corresponding path program 1 times [2022-12-12 00:43:11,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:43:11,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523410777] [2022-12-12 00:43:11,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:43:11,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:43:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:43:12,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 00:43:12,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:43:12,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523410777] [2022-12-12 00:43:12,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523410777] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:43:12,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:43:12,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 00:43:12,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814620382] [2022-12-12 00:43:12,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:43:12,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 00:43:12,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:43:12,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 00:43:12,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 00:43:12,028 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 234 [2022-12-12 00:43:12,029 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 228 transitions, 1274 flow. Second operand has 3 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 0 states have call successors, (0), 0 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 00:43:12,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:43:12,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 234 [2022-12-12 00:43:12,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:43:12,083 INFO L130 PetriNetUnfolder]: 50/340 cut-off events. [2022-12-12 00:43:12,083 INFO L131 PetriNetUnfolder]: For 933/1031 co-relation queries the response was YES. [2022-12-12 00:43:12,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1189 conditions, 340 events. 50/340 cut-off events. For 933/1031 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 559 event pairs, 10 based on Foata normal form. 3/321 useless extension candidates. Maximal degree in co-relation 762. Up to 112 conditions per place. [2022-12-12 00:43:12,085 INFO L137 encePairwiseOnDemand]: 231/234 looper letters, 23 selfloop transitions, 2 changer transitions 0/220 dead transitions. [2022-12-12 00:43:12,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 220 transitions, 1178 flow [2022-12-12 00:43:12,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 00:43:12,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 00:43:12,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 626 transitions. [2022-12-12 00:43:12,087 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8917378917378918 [2022-12-12 00:43:12,087 INFO L295 CegarLoopForPetriNet]: 212 programPoint places, 19 predicate places. [2022-12-12 00:43:12,087 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 220 transitions, 1178 flow [2022-12-12 00:43:12,089 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 231 places, 220 transitions, 1178 flow [2022-12-12 00:43:12,089 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 220 transitions, 1178 flow [2022-12-12 00:43:12,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 0 states have call successors, (0), 0 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 00:43:12,090 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:43:12,090 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:12,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 00:43:12,090 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:43:12,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:43:12,090 INFO L85 PathProgramCache]: Analyzing trace with hash 934340059, now seen corresponding path program 1 times [2022-12-12 00:43:12,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:43:12,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052656072] [2022-12-12 00:43:12,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:43:12,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:43:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:43:12,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 00:43:12,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:43:12,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052656072] [2022-12-12 00:43:12,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052656072] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:43:12,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:43:12,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 00:43:12,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400257711] [2022-12-12 00:43:12,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:43:12,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 00:43:12,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:43:12,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 00:43:12,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-12 00:43:12,305 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 234 [2022-12-12 00:43:12,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 220 transitions, 1178 flow. Second operand has 5 states, 5 states have (on average 202.8) internal successors, (1014), 5 states have internal predecessors, (1014), 0 states have call successors, (0), 0 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 00:43:12,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:43:12,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 234 [2022-12-12 00:43:12,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:43:12,468 INFO L130 PetriNetUnfolder]: 132/652 cut-off events. [2022-12-12 00:43:12,468 INFO L131 PetriNetUnfolder]: For 3232/3654 co-relation queries the response was YES. [2022-12-12 00:43:12,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2834 conditions, 652 events. 132/652 cut-off events. For 3232/3654 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2558 event pairs, 20 based on Foata normal form. 8/602 useless extension candidates. Maximal degree in co-relation 2351. Up to 248 conditions per place. [2022-12-12 00:43:12,473 INFO L137 encePairwiseOnDemand]: 225/234 looper letters, 39 selfloop transitions, 16 changer transitions 0/247 dead transitions. [2022-12-12 00:43:12,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 247 transitions, 1792 flow [2022-12-12 00:43:12,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 00:43:12,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 00:43:12,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1038 transitions. [2022-12-12 00:43:12,475 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8871794871794871 [2022-12-12 00:43:12,476 INFO L295 CegarLoopForPetriNet]: 212 programPoint places, 23 predicate places. [2022-12-12 00:43:12,476 INFO L82 GeneralOperation]: Start removeDead. Operand has 235 places, 247 transitions, 1792 flow [2022-12-12 00:43:12,482 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 235 places, 247 transitions, 1792 flow [2022-12-12 00:43:12,482 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 247 transitions, 1792 flow [2022-12-12 00:43:12,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.8) internal successors, (1014), 5 states have internal predecessors, (1014), 0 states have call successors, (0), 0 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 00:43:12,483 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:43:12,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:12,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 00:43:12,484 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:43:12,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:43:12,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1884139690, now seen corresponding path program 1 times [2022-12-12 00:43:12,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:43:12,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822995519] [2022-12-12 00:43:12,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:43:12,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:43:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:43:12,779 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 00:43:12,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:43:12,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822995519] [2022-12-12 00:43:12,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822995519] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 00:43:12,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517279535] [2022-12-12 00:43:12,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:43:12,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 00:43:12,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 00:43:12,820 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 00:43:12,867 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 00:43:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:43:13,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-12 00:43:13,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 00:43:13,309 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 00:43:13,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 00:43:13,553 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 00:43:13,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517279535] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 00:43:13,553 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 00:43:13,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-12-12 00:43:13,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738354742] [2022-12-12 00:43:13,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 00:43:13,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 00:43:13,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:43:13,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 00:43:13,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-12-12 00:43:13,557 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 234 [2022-12-12 00:43:13,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 247 transitions, 1792 flow. Second operand has 19 states, 19 states have (on average 167.57894736842104) internal successors, (3184), 19 states have internal predecessors, (3184), 0 states have call successors, (0), 0 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 00:43:13,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:43:13,560 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 234 [2022-12-12 00:43:13,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:43:13,957 INFO L130 PetriNetUnfolder]: 134/795 cut-off events. [2022-12-12 00:43:13,957 INFO L131 PetriNetUnfolder]: For 4203/4643 co-relation queries the response was YES. [2022-12-12 00:43:13,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3497 conditions, 795 events. 134/795 cut-off events. For 4203/4643 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2987 event pairs, 20 based on Foata normal form. 1/732 useless extension candidates. Maximal degree in co-relation 2560. Up to 286 conditions per place. [2022-12-12 00:43:13,963 INFO L137 encePairwiseOnDemand]: 215/234 looper letters, 86 selfloop transitions, 22 changer transitions 42/294 dead transitions. [2022-12-12 00:43:13,963 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 294 transitions, 2551 flow [2022-12-12 00:43:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 00:43:13,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 00:43:13,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2872 transitions. [2022-12-12 00:43:13,968 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7219708396178984 [2022-12-12 00:43:13,968 INFO L295 CegarLoopForPetriNet]: 212 programPoint places, 39 predicate places. [2022-12-12 00:43:13,968 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 294 transitions, 2551 flow [2022-12-12 00:43:13,974 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 247 places, 252 transitions, 2042 flow [2022-12-12 00:43:13,974 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 252 transitions, 2042 flow [2022-12-12 00:43:13,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 167.57894736842104) internal successors, (3184), 19 states have internal predecessors, (3184), 0 states have call successors, (0), 0 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 00:43:13,976 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:43:13,976 INFO L214 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:13,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-12 00:43:14,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-12 00:43:14,184 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:43:14,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:43:14,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1506157934, now seen corresponding path program 2 times [2022-12-12 00:43:14,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:43:14,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788313644] [2022-12-12 00:43:14,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:43:14,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:43:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:43:14,571 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-12 00:43:14,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:43:14,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788313644] [2022-12-12 00:43:14,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788313644] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 00:43:14,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742269313] [2022-12-12 00:43:14,573 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-12 00:43:14,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 00:43:14,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 00:43:14,574 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 00:43:14,576 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 00:43:14,781 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-12 00:43:14,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 00:43:14,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-12 00:43:14,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 00:43:15,005 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-12 00:43:15,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 00:43:15,220 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-12 00:43:15,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742269313] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 00:43:15,221 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 00:43:15,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-12-12 00:43:15,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109695461] [2022-12-12 00:43:15,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 00:43:15,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 00:43:15,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:43:15,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 00:43:15,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-12-12 00:43:15,224 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 234 [2022-12-12 00:43:15,226 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 252 transitions, 2042 flow. Second operand has 19 states, 19 states have (on average 167.47368421052633) internal successors, (3182), 19 states have internal predecessors, (3182), 0 states have call successors, (0), 0 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 00:43:15,226 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:43:15,226 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 234 [2022-12-12 00:43:15,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:43:15,640 INFO L130 PetriNetUnfolder]: 164/924 cut-off events. [2022-12-12 00:43:15,640 INFO L131 PetriNetUnfolder]: For 6646/7242 co-relation queries the response was YES. [2022-12-12 00:43:15,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4696 conditions, 924 events. 164/924 cut-off events. For 6646/7242 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4157 event pairs, 21 based on Foata normal form. 41/889 useless extension candidates. Maximal degree in co-relation 2769. Up to 350 conditions per place. [2022-12-12 00:43:15,648 INFO L137 encePairwiseOnDemand]: 216/234 looper letters, 90 selfloop transitions, 23 changer transitions 54/311 dead transitions. [2022-12-12 00:43:15,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 311 transitions, 3417 flow [2022-12-12 00:43:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 00:43:15,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 00:43:15,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2707 transitions. [2022-12-12 00:43:15,655 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7230235042735043 [2022-12-12 00:43:15,655 INFO L295 CegarLoopForPetriNet]: 212 programPoint places, 50 predicate places. [2022-12-12 00:43:15,655 INFO L82 GeneralOperation]: Start removeDead. Operand has 262 places, 311 transitions, 3417 flow [2022-12-12 00:43:15,666 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 259 places, 257 transitions, 2312 flow [2022-12-12 00:43:15,666 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 257 transitions, 2312 flow [2022-12-12 00:43:15,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 167.47368421052633) internal successors, (3182), 19 states have internal predecessors, (3182), 0 states have call successors, (0), 0 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 00:43:15,667 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:43:15,667 INFO L214 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:15,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-12 00:43:15,873 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,SelfDestructingSolverStorable10 [2022-12-12 00:43:15,874 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:43:15,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:43:15,874 INFO L85 PathProgramCache]: Analyzing trace with hash 935841410, now seen corresponding path program 3 times [2022-12-12 00:43:15,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:43:15,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545070495] [2022-12-12 00:43:15,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:43:15,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:43:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:43:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:43:22,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:43:22,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545070495] [2022-12-12 00:43:22,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545070495] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 00:43:22,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776175019] [2022-12-12 00:43:22,320 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-12 00:43:22,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 00:43:22,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 00:43:22,321 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 00:43:22,332 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 00:43:22,503 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-12 00:43:22,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 00:43:22,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 160 conjunts are in the unsatisfiable core [2022-12-12 00:43:22,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 00:43:22,538 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-12 00:43:22,589 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-12 00:43:22,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-12-12 00:43:22,671 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-12-12 00:43:22,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2022-12-12 00:43:23,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:43:23,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:43:23,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:43:23,664 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-12 00:43:23,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 33 [2022-12-12 00:43:24,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-12 00:43:26,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:43:26,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:43:26,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:43:26,119 INFO L321 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2022-12-12 00:43:26,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 32 treesize of output 57 [2022-12-12 00:43:26,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-12 00:43:27,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-12 00:43:28,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:43:28,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:43:28,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:43:28,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:43:28,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:43:28,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:43:28,653 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-12-12 00:43:28,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 20 [2022-12-12 00:43:29,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-12 00:43:30,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-12 00:43:30,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-12 00:43:30,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-12 00:43:32,153 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:43:32,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 00:44:22,328 WARN L233 SmtUtils]: Spent 16.15s on a formula simplification that was a NOOP. DAG size: 143 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-12 00:47:24,771 WARN L233 SmtUtils]: Spent 10.07s on a formula simplification that was a NOOP. DAG size: 151 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-12 00:47:40,267 WARN L233 SmtUtils]: Spent 10.09s on a formula simplification that was a NOOP. DAG size: 151 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-12 00:47:54,276 WARN L233 SmtUtils]: Spent 10.11s on a formula simplification that was a NOOP. DAG size: 151 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-12 00:48:15,830 WARN L233 SmtUtils]: Spent 12.07s on a formula simplification that was a NOOP. DAG size: 155 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-12 00:48:31,866 WARN L233 SmtUtils]: Spent 10.10s on a formula simplification that was a NOOP. DAG size: 158 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-12 00:48:50,281 WARN L233 SmtUtils]: Spent 12.08s on a formula simplification that was a NOOP. DAG size: 159 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-12 00:49:08,965 WARN L233 SmtUtils]: Spent 11.45s on a formula simplification that was a NOOP. DAG size: 159 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-12 00:49:09,320 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 00:49:09,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 245 treesize of output 161 [2022-12-12 00:49:09,448 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 00:49:09,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 906093 treesize of output 898213 [2022-12-12 00:49:11,558 INFO L321 Elim1Store]: treesize reduction 12, result has 87.1 percent of original size [2022-12-12 00:49:11,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 898189 treesize of output 798429 [2022-12-12 00:49:13,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-12 00:49:13,696 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 00:49:13,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 798349 treesize of output 598749 [2022-12-12 00:49:15,873 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-12 00:49:15,952 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 00:49:15,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 598669 treesize of output 548829 [2022-12-12 00:49:17,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:49:17,979 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-12 00:49:18,057 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 00:49:18,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 572013 treesize of output 551405 [2022-12-12 00:49:31,846 WARN L233 SmtUtils]: Spent 13.78s on a formula simplification. DAG size of input: 2098 DAG size of output: 2096 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2022-12-12 00:57:27,475 WARN L249 SmtUtils]: Removed 2 from assertion stack [2022-12-12 00:57:27,477 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 00:57:27,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-12 00:57:27,489 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-12 00:57:27,489 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-12 00:57:27,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 00:57:27,683 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 216 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 25ms.. [2022-12-12 00:57:27,685 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 00:57:27,685 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 00:57:27,685 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 00:57:27,685 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:57:27,687 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 00:57:27,688 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 00:57:27,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 12:57:27 BasicIcfg [2022-12-12 00:57:27,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 00:57:27,690 INFO L158 Benchmark]: Toolchain (without parser) took 860327.84ms. Allocated memory was 199.2MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 175.3MB in the beginning and 1.1GB in the end (delta: -932.7MB). Peak memory consumption was 943.2MB. Max. memory is 8.0GB. [2022-12-12 00:57:27,690 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 199.2MB. Free memory was 175.3MB in the beginning and 175.2MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 00:57:27,690 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.13ms. Allocated memory is still 199.2MB. Free memory was 175.3MB in the beginning and 160.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-12 00:57:27,691 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.22ms. Allocated memory is still 199.2MB. Free memory was 160.6MB in the beginning and 158.0MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 00:57:27,691 INFO L158 Benchmark]: Boogie Preprocessor took 41.04ms. Allocated memory is still 199.2MB. Free memory was 157.5MB in the beginning and 155.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 00:57:27,691 INFO L158 Benchmark]: RCFGBuilder took 895.01ms. Allocated memory is still 199.2MB. Free memory was 155.4MB in the beginning and 106.1MB in the end (delta: 49.3MB). Peak memory consumption was 49.3MB. Max. memory is 8.0GB. [2022-12-12 00:57:27,691 INFO L158 Benchmark]: TraceAbstraction took 859150.98ms. Allocated memory was 199.2MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 104.5MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 872.9MB. Max. memory is 8.0GB. [2022-12-12 00:57:27,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 199.2MB. Free memory was 175.3MB in the beginning and 175.2MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 189.13ms. Allocated memory is still 199.2MB. Free memory was 175.3MB in the beginning and 160.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.22ms. Allocated memory is still 199.2MB. Free memory was 160.6MB in the beginning and 158.0MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.04ms. Allocated memory is still 199.2MB. Free memory was 157.5MB in the beginning and 155.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 895.01ms. Allocated memory is still 199.2MB. Free memory was 155.4MB in the beginning and 106.1MB in the end (delta: 49.3MB). Peak memory consumption was 49.3MB. Max. memory is 8.0GB. * TraceAbstraction took 859150.98ms. Allocated memory was 199.2MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 104.5MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 872.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 148]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 216 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 25ms.. - TimeoutResultAtElement [Line: 141]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 216 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 25ms.. - TimeoutResultAtElement [Line: 140]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 216 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 25ms.. - TimeoutResultAtElement [Line: 142]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 216 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 25ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 245 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 858.9s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 664 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 664 mSDsluCounter, 616 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 419 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1536 IncrementalHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 197 mSDtfsCounter, 1536 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 904 GetRequests, 815 SyntacticMatches, 2 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2312occurred in iteration=11, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 2336 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 2426 NumberOfCodeBlocks, 2426 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2820 ConstructedInterpolants, 0 QuantifiedInterpolants, 6504 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1067 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 69/79 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown