/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_REDUNDANT_FLOW -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 13:42:46,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 13:42:46,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 13:42:46,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 13:42:46,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 13:42:46,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 13:42:46,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 13:42:46,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 13:42:46,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 13:42:46,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 13:42:46,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 13:42:46,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 13:42:46,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 13:42:46,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 13:42:46,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 13:42:46,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 13:42:46,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 13:42:46,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 13:42:46,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 13:42:46,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 13:42:46,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 13:42:46,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 13:42:46,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 13:42:46,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 13:42:46,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 13:42:46,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 13:42:46,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 13:42:46,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 13:42:46,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 13:42:46,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 13:42:46,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 13:42:46,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 13:42:46,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 13:42:46,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 13:42:46,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 13:42:46,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 13:42:46,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 13:42:46,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 13:42:46,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 13:42:46,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 13:42:46,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 13:42:46,761 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 13:42:46,786 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 13:42:46,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 13:42:46,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 13:42:46,787 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 13:42:46,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 13:42:46,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 13:42:46,788 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 13:42:46,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 13:42:46,789 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 13:42:46,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 13:42:46,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 13:42:46,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 13:42:46,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 13:42:46,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 13:42:46,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 13:42:46,790 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 13:42:46,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 13:42:46,790 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 13:42:46,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 13:42:46,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 13:42:46,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 13:42:46,790 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 13:42:46,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 13:42:46,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 13:42:46,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 13:42:46,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 13:42:46,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 13:42:46,791 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 13:42:46,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 13:42:46,791 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 13:42:46,791 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 13:42:46,792 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_REDUNDANT_FLOW [2022-12-12 13:42:47,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 13:42:47,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 13:42:47,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 13:42:47,078 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 13:42:47,079 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 13:42:47,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2022-12-12 13:42:48,073 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 13:42:48,281 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 13:42:48,282 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2022-12-12 13:42:48,287 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3827ea888/0658d3a9e48d415a9232f8ad67898cd3/FLAG4b403084b [2022-12-12 13:42:48,297 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3827ea888/0658d3a9e48d415a9232f8ad67898cd3 [2022-12-12 13:42:48,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 13:42:48,299 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 13:42:48,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 13:42:48,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 13:42:48,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 13:42:48,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 01:42:48" (1/1) ... [2022-12-12 13:42:48,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b273539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:42:48, skipping insertion in model container [2022-12-12 13:42:48,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 01:42:48" (1/1) ... [2022-12-12 13:42:48,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 13:42:48,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 13:42:48,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,441 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-threaded-sum-3.wvr.c[2957,2970] [2022-12-12 13:42:48,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 13:42:48,457 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 13:42:48,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,480 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,481 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,482 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,482 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,483 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,484 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,488 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:42:48,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:42:48,497 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-threaded-sum-3.wvr.c[2957,2970] [2022-12-12 13:42:48,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 13:42:48,508 INFO L208 MainTranslator]: Completed translation [2022-12-12 13:42:48,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:42:48 WrapperNode [2022-12-12 13:42:48,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 13:42:48,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 13:42:48,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 13:42:48,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 13:42:48,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:42:48" (1/1) ... [2022-12-12 13:42:48,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:42:48" (1/1) ... [2022-12-12 13:42:48,546 INFO L138 Inliner]: procedures = 22, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2022-12-12 13:42:48,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 13:42:48,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 13:42:48,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 13:42:48,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 13:42:48,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:42:48" (1/1) ... [2022-12-12 13:42:48,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:42:48" (1/1) ... [2022-12-12 13:42:48,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:42:48" (1/1) ... [2022-12-12 13:42:48,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:42:48" (1/1) ... [2022-12-12 13:42:48,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:42:48" (1/1) ... [2022-12-12 13:42:48,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:42:48" (1/1) ... [2022-12-12 13:42:48,573 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:42:48" (1/1) ... [2022-12-12 13:42:48,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:42:48" (1/1) ... [2022-12-12 13:42:48,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 13:42:48,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 13:42:48,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 13:42:48,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 13:42:48,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:42:48" (1/1) ... [2022-12-12 13:42:48,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 13:42:48,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 13:42:48,632 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 13:42:48,648 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 13:42:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 13:42:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 13:42:48,680 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 13:42:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 13:42:48,680 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 13:42:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 13:42:48,681 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 13:42:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 13:42:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 13:42:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 13:42:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 13:42:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 13:42:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 13:42:48,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 13:42:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 13:42:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 13:42:48,682 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 13:42:48,769 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 13:42:48,770 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 13:42:48,989 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 13:42:49,043 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 13:42:49,044 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-12 13:42:49,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 01:42:49 BoogieIcfgContainer [2022-12-12 13:42:49,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 13:42:49,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 13:42:49,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 13:42:49,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 13:42:49,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 01:42:48" (1/3) ... [2022-12-12 13:42:49,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e81782d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 01:42:49, skipping insertion in model container [2022-12-12 13:42:49,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:42:48" (2/3) ... [2022-12-12 13:42:49,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e81782d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 01:42:49, skipping insertion in model container [2022-12-12 13:42:49,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 01:42:49" (3/3) ... [2022-12-12 13:42:49,051 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-threaded-sum-3.wvr.c [2022-12-12 13:42:49,062 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 13:42:49,062 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 13:42:49,062 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 13:42:49,098 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 13:42:49,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 108 transitions, 240 flow [2022-12-12 13:42:49,151 INFO L130 PetriNetUnfolder]: 8/105 cut-off events. [2022-12-12 13:42:49,151 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 13:42:49,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 105 events. 8/105 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 60 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-12-12 13:42:49,154 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 108 transitions, 240 flow [2022-12-12 13:42:49,157 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 95 transitions, 208 flow [2022-12-12 13:42:49,163 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 13:42:49,166 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;@205f3b8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 13:42:49,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 13:42:49,185 INFO L130 PetriNetUnfolder]: 8/94 cut-off events. [2022-12-12 13:42:49,185 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 13:42:49,185 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:42:49,186 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] [2022-12-12 13:42:49,186 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 13:42:49,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:42:49,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1506131630, now seen corresponding path program 1 times [2022-12-12 13:42:49,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:42:49,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562039875] [2022-12-12 13:42:49,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:42:49,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:42:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:42:50,144 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 13:42:50,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:42:50,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562039875] [2022-12-12 13:42:50,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562039875] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:42:50,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:42:50,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 13:42:50,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146567658] [2022-12-12 13:42:50,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:42:50,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 13:42:50,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:42:50,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 13:42:50,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-12-12 13:42:50,187 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 108 [2022-12-12 13:42:50,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 95 transitions, 208 flow. Second operand has 8 states, 8 states have (on average 66.625) internal successors, (533), 8 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:42:50,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:42:50,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 108 [2022-12-12 13:42:50,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:42:50,566 INFO L130 PetriNetUnfolder]: 250/650 cut-off events. [2022-12-12 13:42:50,566 INFO L131 PetriNetUnfolder]: For 115/115 co-relation queries the response was YES. [2022-12-12 13:42:50,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1135 conditions, 650 events. 250/650 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3391 event pairs, 57 based on Foata normal form. 68/635 useless extension candidates. Maximal degree in co-relation 1000. Up to 311 conditions per place. [2022-12-12 13:42:50,572 INFO L137 encePairwiseOnDemand]: 95/108 looper letters, 46 selfloop transitions, 8 changer transitions 2/107 dead transitions. [2022-12-12 13:42:50,572 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 107 transitions, 356 flow [2022-12-12 13:42:50,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 13:42:50,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 13:42:50,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 508 transitions. [2022-12-12 13:42:50,582 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.671957671957672 [2022-12-12 13:42:50,585 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, 6 predicate places. [2022-12-12 13:42:50,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 107 transitions, 356 flow [2022-12-12 13:42:50,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 107 transitions, 294 flow, removed 18 selfloop flow, removed 9 redundant places. [2022-12-12 13:42:50,590 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 107 transitions, 294 flow [2022-12-12 13:42:50,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 66.625) internal successors, (533), 8 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:42:50,590 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:42:50,591 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] [2022-12-12 13:42:50,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 13:42:50,591 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 13:42:50,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:42:50,591 INFO L85 PathProgramCache]: Analyzing trace with hash -485550720, now seen corresponding path program 1 times [2022-12-12 13:42:50,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:42:50,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032539267] [2022-12-12 13:42:50,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:42:50,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:42:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:42:50,908 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 13:42:50,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:42:50,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032539267] [2022-12-12 13:42:50,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032539267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:42:50,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:42:50,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 13:42:50,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301122278] [2022-12-12 13:42:50,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:42:50,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 13:42:50,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:42:50,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 13:42:50,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-12 13:42:50,912 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 108 [2022-12-12 13:42:50,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 107 transitions, 294 flow. Second operand has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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 13:42:50,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:42:50,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 108 [2022-12-12 13:42:50,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:42:51,257 INFO L130 PetriNetUnfolder]: 902/1785 cut-off events. [2022-12-12 13:42:51,257 INFO L131 PetriNetUnfolder]: For 401/1219 co-relation queries the response was YES. [2022-12-12 13:42:51,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4474 conditions, 1785 events. 902/1785 cut-off events. For 401/1219 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 10788 event pairs, 83 based on Foata normal form. 31/1614 useless extension candidates. Maximal degree in co-relation 1460. Up to 1072 conditions per place. [2022-12-12 13:42:51,270 INFO L137 encePairwiseOnDemand]: 97/108 looper letters, 108 selfloop transitions, 42 changer transitions 2/214 dead transitions. [2022-12-12 13:42:51,271 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 214 transitions, 1038 flow [2022-12-12 13:42:51,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 13:42:51,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 13:42:51,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 628 transitions. [2022-12-12 13:42:51,275 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8306878306878307 [2022-12-12 13:42:51,275 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, 3 predicate places. [2022-12-12 13:42:51,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 214 transitions, 1038 flow [2022-12-12 13:42:51,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 214 transitions, 1024 flow, removed 7 selfloop flow, removed 0 redundant places. [2022-12-12 13:42:51,283 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 214 transitions, 1024 flow [2022-12-12 13:42:51,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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 13:42:51,283 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:42:51,283 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] [2022-12-12 13:42:51,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 13:42:51,284 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 13:42:51,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:42:51,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1681444380, now seen corresponding path program 2 times [2022-12-12 13:42:51,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:42:51,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782686688] [2022-12-12 13:42:51,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:42:51,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:42:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:42:51,548 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 13:42:51,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:42:51,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782686688] [2022-12-12 13:42:51,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782686688] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:42:51,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:42:51,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 13:42:51,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654842816] [2022-12-12 13:42:51,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:42:51,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 13:42:51,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:42:51,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 13:42:51,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 13:42:51,551 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 108 [2022-12-12 13:42:51,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 214 transitions, 1024 flow. Second operand has 5 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 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 13:42:51,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:42:51,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 108 [2022-12-12 13:42:51,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:42:51,879 INFO L130 PetriNetUnfolder]: 976/2277 cut-off events. [2022-12-12 13:42:51,879 INFO L131 PetriNetUnfolder]: For 1332/4805 co-relation queries the response was YES. [2022-12-12 13:42:51,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6811 conditions, 2277 events. 976/2277 cut-off events. For 1332/4805 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 16320 event pairs, 131 based on Foata normal form. 131/2157 useless extension candidates. Maximal degree in co-relation 988. Up to 1220 conditions per place. [2022-12-12 13:42:51,892 INFO L137 encePairwiseOnDemand]: 98/108 looper letters, 176 selfloop transitions, 60 changer transitions 2/300 dead transitions. [2022-12-12 13:42:51,892 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 300 transitions, 2038 flow [2022-12-12 13:42:51,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 13:42:51,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 13:42:51,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 444 transitions. [2022-12-12 13:42:51,894 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2022-12-12 13:42:51,894 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, 7 predicate places. [2022-12-12 13:42:51,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 300 transitions, 2038 flow [2022-12-12 13:42:51,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 300 transitions, 1996 flow, removed 21 selfloop flow, removed 0 redundant places. [2022-12-12 13:42:51,897 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 300 transitions, 1996 flow [2022-12-12 13:42:51,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 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 13:42:51,898 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:42:51,898 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] [2022-12-12 13:42:51,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 13:42:51,898 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 13:42:51,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:42:51,899 INFO L85 PathProgramCache]: Analyzing trace with hash 2062679766, now seen corresponding path program 3 times [2022-12-12 13:42:51,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:42:51,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406455197] [2022-12-12 13:42:51,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:42:51,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:42:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:42:52,209 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 13:42:52,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:42:52,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406455197] [2022-12-12 13:42:52,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406455197] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:42:52,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:42:52,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 13:42:52,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185291134] [2022-12-12 13:42:52,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:42:52,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 13:42:52,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:42:52,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 13:42:52,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 13:42:52,217 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 108 [2022-12-12 13:42:52,218 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 300 transitions, 1996 flow. Second operand has 5 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 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 13:42:52,218 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:42:52,218 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 108 [2022-12-12 13:42:52,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:42:52,557 INFO L130 PetriNetUnfolder]: 897/1973 cut-off events. [2022-12-12 13:42:52,557 INFO L131 PetriNetUnfolder]: For 2002/13674 co-relation queries the response was YES. [2022-12-12 13:42:52,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7487 conditions, 1973 events. 897/1973 cut-off events. For 2002/13674 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 13014 event pairs, 84 based on Foata normal form. 200/1966 useless extension candidates. Maximal degree in co-relation 1275. Up to 1096 conditions per place. [2022-12-12 13:42:52,572 INFO L137 encePairwiseOnDemand]: 97/108 looper letters, 175 selfloop transitions, 74 changer transitions 2/313 dead transitions. [2022-12-12 13:42:52,572 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 313 transitions, 2582 flow [2022-12-12 13:42:52,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 13:42:52,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 13:42:52,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 530 transitions. [2022-12-12 13:42:52,574 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8179012345679012 [2022-12-12 13:42:52,575 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, 12 predicate places. [2022-12-12 13:42:52,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 313 transitions, 2582 flow [2022-12-12 13:42:52,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 313 transitions, 2468 flow, removed 57 selfloop flow, removed 0 redundant places. [2022-12-12 13:42:52,583 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 313 transitions, 2468 flow [2022-12-12 13:42:52,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 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 13:42:52,588 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:42:52,588 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] [2022-12-12 13:42:52,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 13:42:52,588 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 13:42:52,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:42:52,589 INFO L85 PathProgramCache]: Analyzing trace with hash 20770358, now seen corresponding path program 4 times [2022-12-12 13:42:52,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:42:52,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647022118] [2022-12-12 13:42:52,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:42:52,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:42:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:42:52,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:42:52,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:42:52,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647022118] [2022-12-12 13:42:52,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647022118] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 13:42:52,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206276645] [2022-12-12 13:42:52,935 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-12 13:42:52,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 13:42:52,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 13:42:52,957 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 13:42:53,002 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 13:42:53,055 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-12 13:42:53,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 13:42:53,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-12 13:42:53,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 13:42:53,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:42:53,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 13:42:53,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:42:53,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206276645] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 13:42:53,514 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 13:42:53,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 17 [2022-12-12 13:42:53,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547790525] [2022-12-12 13:42:53,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 13:42:53,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-12 13:42:53,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:42:53,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-12 13:42:53,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-12-12 13:42:53,518 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 108 [2022-12-12 13:42:53,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 313 transitions, 2468 flow. Second operand has 17 states, 17 states have (on average 65.58823529411765) internal successors, (1115), 17 states have internal predecessors, (1115), 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 13:42:53,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:42:53,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 108 [2022-12-12 13:42:53,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:42:55,283 INFO L130 PetriNetUnfolder]: 2448/4832 cut-off events. [2022-12-12 13:42:55,283 INFO L131 PetriNetUnfolder]: For 7230/11902 co-relation queries the response was YES. [2022-12-12 13:42:55,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20987 conditions, 4832 events. 2448/4832 cut-off events. For 7230/11902 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 33832 event pairs, 94 based on Foata normal form. 65/4364 useless extension candidates. Maximal degree in co-relation 7002. Up to 2772 conditions per place. [2022-12-12 13:42:55,317 INFO L137 encePairwiseOnDemand]: 87/108 looper letters, 573 selfloop transitions, 377 changer transitions 4/1004 dead transitions. [2022-12-12 13:42:55,317 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 1004 transitions, 10608 flow [2022-12-12 13:42:55,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-12 13:42:55,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-12 13:42:55,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 2664 transitions. [2022-12-12 13:42:55,322 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2022-12-12 13:42:55,322 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, 49 predicate places. [2022-12-12 13:42:55,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 1004 transitions, 10608 flow [2022-12-12 13:42:55,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 1004 transitions, 8854 flow, removed 873 selfloop flow, removed 4 redundant places. [2022-12-12 13:42:55,345 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 1004 transitions, 8854 flow [2022-12-12 13:42:55,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 65.58823529411765) internal successors, (1115), 17 states have internal predecessors, (1115), 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 13:42:55,346 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:42:55,346 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] [2022-12-12 13:42:55,351 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 13:42:55,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 13:42:55,552 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 13:42:55,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:42:55,552 INFO L85 PathProgramCache]: Analyzing trace with hash 115654517, now seen corresponding path program 1 times [2022-12-12 13:42:55,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:42:55,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201926375] [2022-12-12 13:42:55,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:42:55,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:42:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:42:55,759 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 13:42:55,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:42:55,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201926375] [2022-12-12 13:42:55,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201926375] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:42:55,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:42:55,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 13:42:55,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495424262] [2022-12-12 13:42:55,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:42:55,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 13:42:55,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:42:55,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 13:42:55,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-12 13:42:55,811 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 108 [2022-12-12 13:42:55,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 1004 transitions, 8854 flow. Second operand has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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 13:42:55,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:42:55,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 108 [2022-12-12 13:42:55,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:42:57,117 INFO L130 PetriNetUnfolder]: 5560/10781 cut-off events. [2022-12-12 13:42:57,117 INFO L131 PetriNetUnfolder]: For 13469/16203 co-relation queries the response was YES. [2022-12-12 13:42:57,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46300 conditions, 10781 events. 5560/10781 cut-off events. For 13469/16203 co-relation queries the response was YES. Maximal size of possible extension queue 670. Compared 88277 event pairs, 142 based on Foata normal form. 92/9684 useless extension candidates. Maximal degree in co-relation 24632. Up to 3632 conditions per place. [2022-12-12 13:42:57,181 INFO L137 encePairwiseOnDemand]: 99/108 looper letters, 1555 selfloop transitions, 404 changer transitions 4/2147 dead transitions. [2022-12-12 13:42:57,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 2147 transitions, 23098 flow [2022-12-12 13:42:57,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 13:42:57,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 13:42:57,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 558 transitions. [2022-12-12 13:42:57,183 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8611111111111112 [2022-12-12 13:42:57,185 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, 50 predicate places. [2022-12-12 13:42:57,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 2147 transitions, 23098 flow [2022-12-12 13:42:57,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 2147 transitions, 22942 flow, removed 78 selfloop flow, removed 0 redundant places. [2022-12-12 13:42:57,246 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 2147 transitions, 22942 flow [2022-12-12 13:42:57,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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 13:42:57,247 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:42:57,247 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] [2022-12-12 13:42:57,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 13:42:57,247 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 13:42:57,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:42:57,248 INFO L85 PathProgramCache]: Analyzing trace with hash 112295551, now seen corresponding path program 2 times [2022-12-12 13:42:57,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:42:57,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60722150] [2022-12-12 13:42:57,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:42:57,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:42:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:42:57,405 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 13:42:57,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:42:57,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60722150] [2022-12-12 13:42:57,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60722150] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:42:57,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:42:57,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 13:42:57,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632381283] [2022-12-12 13:42:57,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:42:57,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 13:42:57,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:42:57,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 13:42:57,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 13:42:57,406 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 108 [2022-12-12 13:42:57,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 2147 transitions, 22942 flow. Second operand has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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 13:42:57,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:42:57,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 108 [2022-12-12 13:42:57,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:42:59,788 INFO L130 PetriNetUnfolder]: 6435/12105 cut-off events. [2022-12-12 13:42:59,788 INFO L131 PetriNetUnfolder]: For 19944/25554 co-relation queries the response was YES. [2022-12-12 13:42:59,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61006 conditions, 12105 events. 6435/12105 cut-off events. For 19944/25554 co-relation queries the response was YES. Maximal size of possible extension queue 739. Compared 98121 event pairs, 182 based on Foata normal form. 242/11078 useless extension candidates. Maximal degree in co-relation 40912. Up to 4114 conditions per place. [2022-12-12 13:42:59,883 INFO L137 encePairwiseOnDemand]: 101/108 looper letters, 2093 selfloop transitions, 482 changer transitions 4/2763 dead transitions. [2022-12-12 13:42:59,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 2763 transitions, 34856 flow [2022-12-12 13:42:59,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 13:42:59,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 13:42:59,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 628 transitions. [2022-12-12 13:42:59,885 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8306878306878307 [2022-12-12 13:42:59,885 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, 56 predicate places. [2022-12-12 13:42:59,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 2763 transitions, 34856 flow [2022-12-12 13:42:59,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 2763 transitions, 34222 flow, removed 317 selfloop flow, removed 0 redundant places. [2022-12-12 13:42:59,944 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 2763 transitions, 34222 flow [2022-12-12 13:42:59,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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 13:42:59,944 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:42:59,944 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] [2022-12-12 13:42:59,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 13:42:59,945 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 13:42:59,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:42:59,945 INFO L85 PathProgramCache]: Analyzing trace with hash 263480083, now seen corresponding path program 3 times [2022-12-12 13:42:59,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:42:59,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425542242] [2022-12-12 13:42:59,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:42:59,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:42:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:43:00,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 13:43:00,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:43:00,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425542242] [2022-12-12 13:43:00,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425542242] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:43:00,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:43:00,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 13:43:00,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569215456] [2022-12-12 13:43:00,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:43:00,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 13:43:00,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:43:00,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 13:43:00,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-12 13:43:00,212 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 108 [2022-12-12 13:43:00,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 2763 transitions, 34222 flow. Second operand has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 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 13:43:00,213 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:43:00,213 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 108 [2022-12-12 13:43:00,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:43:04,709 INFO L130 PetriNetUnfolder]: 11858/21511 cut-off events. [2022-12-12 13:43:04,709 INFO L131 PetriNetUnfolder]: For 50216/61090 co-relation queries the response was YES. [2022-12-12 13:43:04,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118663 conditions, 21511 events. 11858/21511 cut-off events. For 50216/61090 co-relation queries the response was YES. Maximal size of possible extension queue 1147. Compared 181798 event pairs, 252 based on Foata normal form. 149/19501 useless extension candidates. Maximal degree in co-relation 40205. Up to 7566 conditions per place. [2022-12-12 13:43:04,860 INFO L137 encePairwiseOnDemand]: 99/108 looper letters, 3253 selfloop transitions, 751 changer transitions 4/4657 dead transitions. [2022-12-12 13:43:04,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 4657 transitions, 65881 flow [2022-12-12 13:43:04,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 13:43:04,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 13:43:04,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 601 transitions. [2022-12-12 13:43:04,861 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6956018518518519 [2022-12-12 13:43:04,864 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, 63 predicate places. [2022-12-12 13:43:04,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 4657 transitions, 65881 flow [2022-12-12 13:43:04,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 4657 transitions, 65809 flow, removed 33 selfloop flow, removed 3 redundant places. [2022-12-12 13:43:04,968 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 4657 transitions, 65809 flow [2022-12-12 13:43:04,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 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 13:43:04,969 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:43:04,969 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] [2022-12-12 13:43:04,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 13:43:04,969 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 13:43:04,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:43:04,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1056506943, now seen corresponding path program 1 times [2022-12-12 13:43:04,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:43:04,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748525552] [2022-12-12 13:43:04,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:43:04,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:43:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:43:07,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:43:07,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:43:07,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748525552] [2022-12-12 13:43:07,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748525552] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 13:43:07,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073215598] [2022-12-12 13:43:07,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:43:07,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 13:43:07,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 13:43:07,120 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 13:43:07,122 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 13:43:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:43:07,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 41 conjunts are in the unsatisfiable core [2022-12-12 13:43:07,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 13:43:08,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:43:08,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 13:43:13,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:43:13,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073215598] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 13:43:13,442 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 13:43:13,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 23] total 54 [2022-12-12 13:43:13,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344238542] [2022-12-12 13:43:13,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 13:43:13,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-12-12 13:43:13,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:43:13,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-12-12 13:43:13,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=437, Invalid=2425, Unknown=0, NotChecked=0, Total=2862 [2022-12-12 13:43:13,446 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 108 [2022-12-12 13:43:13,448 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 4657 transitions, 65809 flow. Second operand has 54 states, 54 states have (on average 58.907407407407405) internal successors, (3181), 54 states have internal predecessors, (3181), 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 13:43:13,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:43:13,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 108 [2022-12-12 13:43:13,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:43:19,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-12 13:50:01,354 INFO L130 PetriNetUnfolder]: 133637/260602 cut-off events. [2022-12-12 13:50:01,354 INFO L131 PetriNetUnfolder]: For 675987/712971 co-relation queries the response was YES. [2022-12-12 13:50:01,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1559622 conditions, 260602 events. 133637/260602 cut-off events. For 675987/712971 co-relation queries the response was YES. Maximal size of possible extension queue 12961. Compared 3276442 event pairs, 571 based on Foata normal form. 2050/232589 useless extension candidates. Maximal degree in co-relation 311737. Up to 105692 conditions per place. [2022-12-12 13:50:03,462 INFO L137 encePairwiseOnDemand]: 74/108 looper letters, 31885 selfloop transitions, 44160 changer transitions 10926/87016 dead transitions. [2022-12-12 13:50:03,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 812 places, 87016 transitions, 1342829 flow [2022-12-12 13:50:03,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 656 states. [2022-12-12 13:50:03,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 656 states. [2022-12-12 13:50:03,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 41845 transitions. [2022-12-12 13:50:03,504 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5906306458897922 [2022-12-12 13:50:03,504 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, 715 predicate places. [2022-12-12 13:50:03,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 812 places, 87016 transitions, 1342829 flow [2022-12-12 13:50:08,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 804 places, 87016 transitions, 1191272 flow, removed 75765 selfloop flow, removed 8 redundant places. [2022-12-12 13:50:08,295 INFO L495 AbstractCegarLoop]: Abstraction has has 804 places, 87016 transitions, 1191272 flow [2022-12-12 13:50:08,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 58.907407407407405) internal successors, (3181), 54 states have internal predecessors, (3181), 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 13:50:08,296 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:50:08,296 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] [2022-12-12 13:50:08,311 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 13:50:08,501 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,SelfDestructingSolverStorable8 [2022-12-12 13:50:08,501 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 13:50:08,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:50:08,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1376080957, now seen corresponding path program 2 times [2022-12-12 13:50:08,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:50:08,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629911847] [2022-12-12 13:50:08,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:50:08,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:50:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:50:09,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:50:09,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:50:09,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629911847] [2022-12-12 13:50:09,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629911847] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 13:50:09,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611547689] [2022-12-12 13:50:09,749 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-12 13:50:09,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 13:50:09,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 13:50:09,750 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 13:50:09,752 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 13:50:09,878 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-12 13:50:09,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 13:50:09,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-12 13:50:09,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 13:50:11,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:50:11,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 13:50:14,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:50:14,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611547689] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 13:50:14,901 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 13:50:14,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20, 19] total 45 [2022-12-12 13:50:14,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459486982] [2022-12-12 13:50:14,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 13:50:14,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-12-12 13:50:14,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:50:14,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-12-12 13:50:14,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=1602, Unknown=0, NotChecked=0, Total=1980 [2022-12-12 13:50:14,904 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 108 [2022-12-12 13:50:14,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 804 places, 87016 transitions, 1191272 flow. Second operand has 45 states, 45 states have (on average 59.2) internal successors, (2664), 45 states have internal predecessors, (2664), 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 13:50:14,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:50:14,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 108 [2022-12-12 13:50:14,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-12 13:55:04,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2022-12-12 13:55:04,635 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 13:55:04,640 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 13:55:04,644 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 13:55:04,644 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 13:55:04,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 13:55:04,840 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (45states, 57/108 universal loopers) in iteration 10,while PetriNetUnfolder was constructing finite prefix that currently has 109419 conditions, 14759 events (8491/14758 cut-off events. For 30425/54935 co-relation queries the response was YES. Maximal size of possible extension queue 4344. Compared 142273 event pairs, 33 based on Foata normal form. 405/17744 useless extension candidates. Maximal degree in co-relation 66153. Up to 4338 conditions per place.). [2022-12-12 13:55:04,842 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 13:55:04,842 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 13:55:04,842 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 13:55:04,842 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 2, 1] [2022-12-12 13:55:04,844 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 13:55:04,844 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 13:55:04,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 01:55:04 BasicIcfg [2022-12-12 13:55:04,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 13:55:04,848 INFO L158 Benchmark]: Toolchain (without parser) took 736548.66ms. Allocated memory was 182.5MB in the beginning and 6.4GB in the end (delta: 6.2GB). Free memory was 158.3MB in the beginning and 5.5GB in the end (delta: -5.3GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-12-12 13:55:04,848 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 182.5MB. Free memory is still 159.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 13:55:04,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.43ms. Allocated memory is still 182.5MB. Free memory was 158.3MB in the beginning and 144.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-12 13:55:04,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.17ms. Allocated memory is still 182.5MB. Free memory was 144.7MB in the beginning and 143.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 13:55:04,848 INFO L158 Benchmark]: Boogie Preprocessor took 27.85ms. Allocated memory is still 182.5MB. Free memory was 143.1MB in the beginning and 141.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 13:55:04,849 INFO L158 Benchmark]: RCFGBuilder took 469.73ms. Allocated memory is still 182.5MB. Free memory was 141.6MB in the beginning and 123.2MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-12 13:55:04,849 INFO L158 Benchmark]: TraceAbstraction took 735800.66ms. Allocated memory was 182.5MB in the beginning and 6.4GB in the end (delta: 6.2GB). Free memory was 122.2MB in the beginning and 5.5GB in the end (delta: -5.3GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-12-12 13:55:04,850 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 182.5MB. Free memory is still 159.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 208.43ms. Allocated memory is still 182.5MB. Free memory was 158.3MB in the beginning and 144.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.17ms. Allocated memory is still 182.5MB. Free memory was 144.7MB in the beginning and 143.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.85ms. Allocated memory is still 182.5MB. Free memory was 143.1MB in the beginning and 141.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 469.73ms. Allocated memory is still 182.5MB. Free memory was 141.6MB in the beginning and 123.2MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 735800.66ms. Allocated memory was 182.5MB in the beginning and 6.4GB in the end (delta: 6.2GB). Free memory was 122.2MB in the beginning and 5.5GB in the end (delta: -5.3GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (45states, 57/108 universal loopers) in iteration 10,while PetriNetUnfolder was constructing finite prefix that currently has 109419 conditions, 14759 events (8491/14758 cut-off events. For 30425/54935 co-relation queries the response was YES. Maximal size of possible extension queue 4344. Compared 142273 event pairs, 33 based on Foata normal form. 405/17744 useless extension candidates. Maximal degree in co-relation 66153. Up to 4338 conditions per place.). - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (45states, 57/108 universal loopers) in iteration 10,while PetriNetUnfolder was constructing finite prefix that currently has 109419 conditions, 14759 events (8491/14758 cut-off events. For 30425/54935 co-relation queries the response was YES. Maximal size of possible extension queue 4344. Compared 142273 event pairs, 33 based on Foata normal form. 405/17744 useless extension candidates. Maximal degree in co-relation 66153. Up to 4338 conditions per place.). - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (45states, 57/108 universal loopers) in iteration 10,while PetriNetUnfolder was constructing finite prefix that currently has 109419 conditions, 14759 events (8491/14758 cut-off events. For 30425/54935 co-relation queries the response was YES. Maximal size of possible extension queue 4344. Compared 142273 event pairs, 33 based on Foata normal form. 405/17744 useless extension candidates. Maximal degree in co-relation 66153. Up to 4338 conditions per place.). - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (45states, 57/108 universal loopers) in iteration 10,while PetriNetUnfolder was constructing finite prefix that currently has 109419 conditions, 14759 events (8491/14758 cut-off events. For 30425/54935 co-relation queries the response was YES. Maximal size of possible extension queue 4344. Compared 142273 event pairs, 33 based on Foata normal form. 405/17744 useless extension candidates. Maximal degree in co-relation 66153. Up to 4338 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 126 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 5.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 735.7s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 711.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7247 SdHoareTripleChecker+Valid, 32.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7247 mSDsluCounter, 3597 SdHoareTripleChecker+Invalid, 30.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3308 mSDsCounter, 1136 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11413 IncrementalHoareTripleChecker+Invalid, 12549 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1136 mSolverCounterUnsat, 289 mSDtfsCounter, 11413 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1419 GetRequests, 454 SyntacticMatches, 2 SemanticMatches, 963 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230664 ImplicationChecksByTransitivity, 318.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1191272occurred in iteration=9, InterpolantAutomatonStates: 740, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 154405 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 17.4s InterpolantComputationTime, 1069 NumberOfCodeBlocks, 1069 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1304 ConstructedInterpolants, 0 QuantifiedInterpolants, 23906 SizeOfPredicates, 54 NumberOfNonLiveVariables, 644 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 6/21 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