/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-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 03:17:07,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 03:17:07,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 03:17:07,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 03:17:07,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 03:17:07,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 03:17:07,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 03:17:07,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 03:17:07,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 03:17:07,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 03:17:07,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 03:17:07,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 03:17:07,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 03:17:07,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 03:17:07,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 03:17:07,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 03:17:07,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 03:17:07,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 03:17:07,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 03:17:07,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 03:17:07,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 03:17:07,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 03:17:07,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 03:17:07,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 03:17:07,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 03:17:07,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 03:17:07,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 03:17:07,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 03:17:07,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 03:17:07,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 03:17:07,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 03:17:07,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 03:17:07,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 03:17:07,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 03:17:07,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 03:17:07,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 03:17:07,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 03:17:07,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 03:17:07,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 03:17:07,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 03:17:07,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 03:17:07,606 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-RepeatedSemanticLbe.epf [2022-12-13 03:17:07,631 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 03:17:07,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 03:17:07,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 03:17:07,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 03:17:07,633 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 03:17:07,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 03:17:07,634 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 03:17:07,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 03:17:07,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 03:17:07,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 03:17:07,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 03:17:07,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 03:17:07,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 03:17:07,635 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 03:17:07,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 03:17:07,635 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 03:17:07,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 03:17:07,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 03:17:07,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 03:17:07,636 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 03:17:07,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 03:17:07,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:17:07,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 03:17:07,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 03:17:07,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 03:17:07,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 03:17:07,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 03:17:07,637 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 03:17:07,637 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-13 03:17:07,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 03:17:07,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 03:17:07,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 03:17:07,944 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 03:17:07,950 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 03:17:07,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.i [2022-12-13 03:17:09,015 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 03:17:09,265 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 03:17:09,265 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.i [2022-12-13 03:17:09,282 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6628f09a/b4434f2469f54fc59268129932f5b99a/FLAGb81ec08ad [2022-12-13 03:17:09,292 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6628f09a/b4434f2469f54fc59268129932f5b99a [2022-12-13 03:17:09,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 03:17:09,294 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 03:17:09,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 03:17:09,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 03:17:09,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 03:17:09,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:17:09" (1/1) ... [2022-12-13 03:17:09,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ada8a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:09, skipping insertion in model container [2022-12-13 03:17:09,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:17:09" (1/1) ... [2022-12-13 03:17:09,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 03:17:09,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 03:17:09,439 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.i[945,958] [2022-12-13 03:17:09,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:17:09,548 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 03:17:09,561 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.i[945,958] [2022-12-13 03:17:09,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:09,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:09,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:17:09,633 INFO L208 MainTranslator]: Completed translation [2022-12-13 03:17:09,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:09 WrapperNode [2022-12-13 03:17:09,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 03:17:09,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 03:17:09,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 03:17:09,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 03:17:09,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:09" (1/1) ... [2022-12-13 03:17:09,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:09" (1/1) ... [2022-12-13 03:17:09,681 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-13 03:17:09,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 03:17:09,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 03:17:09,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 03:17:09,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 03:17:09,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:09" (1/1) ... [2022-12-13 03:17:09,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:09" (1/1) ... [2022-12-13 03:17:09,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:09" (1/1) ... [2022-12-13 03:17:09,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:09" (1/1) ... [2022-12-13 03:17:09,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:09" (1/1) ... [2022-12-13 03:17:09,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:09" (1/1) ... [2022-12-13 03:17:09,695 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:09" (1/1) ... [2022-12-13 03:17:09,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:09" (1/1) ... [2022-12-13 03:17:09,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 03:17:09,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 03:17:09,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 03:17:09,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 03:17:09,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:09" (1/1) ... [2022-12-13 03:17:09,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:17:09,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 03:17:09,724 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) [2022-12-13 03:17:09,735 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 [2022-12-13 03:17:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 03:17:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 03:17:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 03:17:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 03:17:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 03:17:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 03:17:09,760 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 03:17:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 03:17:09,760 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 03:17:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 03:17:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 03:17:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 03:17:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 03:17:09,762 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 03:17:09,846 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 03:17:09,847 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 03:17:10,016 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 03:17:10,027 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 03:17:10,028 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 03:17:10,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:17:10 BoogieIcfgContainer [2022-12-13 03:17:10,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 03:17:10,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 03:17:10,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 03:17:10,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 03:17:10,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:17:09" (1/3) ... [2022-12-13 03:17:10,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698b0601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:17:10, skipping insertion in model container [2022-12-13 03:17:10,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:09" (2/3) ... [2022-12-13 03:17:10,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698b0601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:17:10, skipping insertion in model container [2022-12-13 03:17:10,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:17:10" (3/3) ... [2022-12-13 03:17:10,036 INFO L112 eAbstractionObserver]: Analyzing ICFG safe022_tso.i [2022-12-13 03:17:10,078 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 03:17:10,078 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 03:17:10,079 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 03:17:10,146 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 03:17:10,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 68 transitions, 146 flow [2022-12-13 03:17:10,221 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2022-12-13 03:17:10,221 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:17:10,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2022-12-13 03:17:10,227 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 68 transitions, 146 flow [2022-12-13 03:17:10,231 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 56 transitions, 118 flow [2022-12-13 03:17:10,233 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:17:10,250 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 56 transitions, 118 flow [2022-12-13 03:17:10,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 56 transitions, 118 flow [2022-12-13 03:17:10,287 INFO L130 PetriNetUnfolder]: 1/56 cut-off events. [2022-12-13 03:17:10,289 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:17:10,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 56 events. 1/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2022-12-13 03:17:10,290 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 56 transitions, 118 flow [2022-12-13 03:17:10,290 INFO L226 LiptonReduction]: Number of co-enabled transitions 540 [2022-12-13 03:17:11,715 INFO L241 LiptonReduction]: Total number of compositions: 44 [2022-12-13 03:17:11,726 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 03:17:11,731 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=REPEATED_LIPTON_PN, 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;@3a9a37f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 03:17:11,731 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 03:17:11,734 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2022-12-13 03:17:11,734 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:17:11,734 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:17:11,734 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 03:17:11,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:17:11,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:17:11,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1567709208, now seen corresponding path program 1 times [2022-12-13 03:17:11,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:17:11,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553139480] [2022-12-13 03:17:11,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:17:11,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:17:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:17:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:17:12,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:17:12,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553139480] [2022-12-13 03:17:12,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553139480] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:17:12,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:17:12,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 03:17:12,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862448854] [2022-12-13 03:17:12,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:17:12,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:17:12,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:17:12,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:17:12,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:17:12,038 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 19 [2022-12-13 03:17:12,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-12-13 03:17:12,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:17:12,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 19 [2022-12-13 03:17:12,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:17:12,122 INFO L130 PetriNetUnfolder]: 73/153 cut-off events. [2022-12-13 03:17:12,123 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:17:12,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 153 events. 73/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 610 event pairs, 21 based on Foata normal form. 4/128 useless extension candidates. Maximal degree in co-relation 295. Up to 113 conditions per place. [2022-12-13 03:17:12,128 INFO L137 encePairwiseOnDemand]: 15/19 looper letters, 15 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2022-12-13 03:17:12,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 84 flow [2022-12-13 03:17:12,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:17:12,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:17:12,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2022-12-13 03:17:12,141 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6140350877192983 [2022-12-13 03:17:12,144 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2022-12-13 03:17:12,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 22 transitions, 84 flow [2022-12-13 03:17:12,150 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 22 transitions, 84 flow [2022-12-13 03:17:12,152 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:17:12,152 INFO L89 Accepts]: Start accepts. Operand has 27 places, 22 transitions, 84 flow [2022-12-13 03:17:12,154 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:17:12,154 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:17:12,155 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 22 transitions, 84 flow [2022-12-13 03:17:12,167 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 22 transitions, 84 flow [2022-12-13 03:17:12,168 INFO L226 LiptonReduction]: Number of co-enabled transitions 84 [2022-12-13 03:17:12,294 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:17:12,296 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 144 [2022-12-13 03:17:12,296 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 84 flow [2022-12-13 03:17:12,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-12-13 03:17:12,296 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:17:12,296 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:17:12,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 03:17:12,300 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:17:12,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:17:12,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1354345053, now seen corresponding path program 1 times [2022-12-13 03:17:12,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:17:12,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294006530] [2022-12-13 03:17:12,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:17:12,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:17:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:17:12,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:17:12,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:17:12,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294006530] [2022-12-13 03:17:12,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294006530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:17:12,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:17:12,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:17:12,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462728739] [2022-12-13 03:17:12,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:17:12,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:17:12,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:17:12,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:17:12,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:17:12,453 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2022-12-13 03:17:12,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2022-12-13 03:17:12,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:17:12,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2022-12-13 03:17:12,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:17:12,532 INFO L130 PetriNetUnfolder]: 93/197 cut-off events. [2022-12-13 03:17:12,532 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-13 03:17:12,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 555 conditions, 197 events. 93/197 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 771 event pairs, 15 based on Foata normal form. 10/174 useless extension candidates. Maximal degree in co-relation 542. Up to 135 conditions per place. [2022-12-13 03:17:12,534 INFO L137 encePairwiseOnDemand]: 13/19 looper letters, 26 selfloop transitions, 6 changer transitions 0/36 dead transitions. [2022-12-13 03:17:12,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 36 transitions, 205 flow [2022-12-13 03:17:12,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 03:17:12,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 03:17:12,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2022-12-13 03:17:12,535 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5578947368421052 [2022-12-13 03:17:12,536 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 6 predicate places. [2022-12-13 03:17:12,536 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 36 transitions, 205 flow [2022-12-13 03:17:12,537 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 36 transitions, 205 flow [2022-12-13 03:17:12,538 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:17:12,538 INFO L89 Accepts]: Start accepts. Operand has 31 places, 36 transitions, 205 flow [2022-12-13 03:17:12,539 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:17:12,539 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:17:12,540 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 36 transitions, 205 flow [2022-12-13 03:17:12,542 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 36 transitions, 205 flow [2022-12-13 03:17:12,542 INFO L226 LiptonReduction]: Number of co-enabled transitions 74 [2022-12-13 03:17:12,543 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:17:12,543 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 5 [2022-12-13 03:17:12,544 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 36 transitions, 205 flow [2022-12-13 03:17:12,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2022-12-13 03:17:12,544 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:17:12,544 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:17:12,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 03:17:12,546 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:17:12,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:17:12,547 INFO L85 PathProgramCache]: Analyzing trace with hash 964974999, now seen corresponding path program 1 times [2022-12-13 03:17:12,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:17:12,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984135314] [2022-12-13 03:17:12,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:17:12,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:17:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:17:12,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:17:12,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:17:12,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984135314] [2022-12-13 03:17:12,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984135314] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:17:12,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:17:12,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:17:12,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15579010] [2022-12-13 03:17:12,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:17:12,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 03:17:12,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:17:12,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 03:17:12,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 03:17:12,697 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2022-12-13 03:17:12,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 36 transitions, 205 flow. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-12-13 03:17:12,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:17:12,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2022-12-13 03:17:12,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:17:12,757 INFO L130 PetriNetUnfolder]: 83/205 cut-off events. [2022-12-13 03:17:12,757 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-12-13 03:17:12,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 751 conditions, 205 events. 83/205 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 938 event pairs, 12 based on Foata normal form. 30/192 useless extension candidates. Maximal degree in co-relation 735. Up to 140 conditions per place. [2022-12-13 03:17:12,758 INFO L137 encePairwiseOnDemand]: 14/19 looper letters, 17 selfloop transitions, 3 changer transitions 15/38 dead transitions. [2022-12-13 03:17:12,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 38 transitions, 285 flow [2022-12-13 03:17:12,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:17:12,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:17:12,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2022-12-13 03:17:12,762 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.618421052631579 [2022-12-13 03:17:12,763 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 9 predicate places. [2022-12-13 03:17:12,763 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 38 transitions, 285 flow [2022-12-13 03:17:12,764 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 23 transitions, 173 flow [2022-12-13 03:17:12,765 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:17:12,765 INFO L89 Accepts]: Start accepts. Operand has 32 places, 23 transitions, 173 flow [2022-12-13 03:17:12,765 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:17:12,765 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:17:12,765 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 23 transitions, 173 flow [2022-12-13 03:17:12,766 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 23 transitions, 173 flow [2022-12-13 03:17:12,767 INFO L226 LiptonReduction]: Number of co-enabled transitions 42 [2022-12-13 03:17:12,768 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:17:12,769 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 4 [2022-12-13 03:17:12,769 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 173 flow [2022-12-13 03:17:12,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-12-13 03:17:12,769 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:17:12,769 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:17:12,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 03:17:12,769 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:17:12,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:17:12,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1883331204, now seen corresponding path program 1 times [2022-12-13 03:17:12,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:17:12,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743619774] [2022-12-13 03:17:12,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:17:12,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:17:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:17:12,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:17:12,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:17:12,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743619774] [2022-12-13 03:17:12,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743619774] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:17:12,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:17:12,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:17:12,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862287970] [2022-12-13 03:17:12,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:17:12,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:17:12,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:17:12,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:17:12,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:17:12,887 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-13 03:17:12,887 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-12-13 03:17:12,887 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:17:12,887 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-13 03:17:12,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:17:12,913 INFO L130 PetriNetUnfolder]: 60/136 cut-off events. [2022-12-13 03:17:12,914 INFO L131 PetriNetUnfolder]: For 110/111 co-relation queries the response was YES. [2022-12-13 03:17:12,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 136 events. 60/136 cut-off events. For 110/111 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 487 event pairs, 14 based on Foata normal form. 6/121 useless extension candidates. Maximal degree in co-relation 599. Up to 111 conditions per place. [2022-12-13 03:17:12,915 INFO L137 encePairwiseOnDemand]: 9/18 looper letters, 19 selfloop transitions, 9 changer transitions 0/31 dead transitions. [2022-12-13 03:17:12,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 31 transitions, 284 flow [2022-12-13 03:17:12,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:17:12,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:17:12,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2022-12-13 03:17:12,917 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2022-12-13 03:17:12,918 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 9 predicate places. [2022-12-13 03:17:12,918 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 31 transitions, 284 flow [2022-12-13 03:17:12,919 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 31 transitions, 284 flow [2022-12-13 03:17:12,919 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:17:12,920 INFO L89 Accepts]: Start accepts. Operand has 34 places, 31 transitions, 284 flow [2022-12-13 03:17:12,920 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:17:12,920 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:17:12,920 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 31 transitions, 284 flow [2022-12-13 03:17:12,921 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 31 transitions, 284 flow [2022-12-13 03:17:12,921 INFO L226 LiptonReduction]: Number of co-enabled transitions 14 [2022-12-13 03:17:12,981 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:17:12,982 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 63 [2022-12-13 03:17:12,982 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 31 transitions, 290 flow [2022-12-13 03:17:12,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-12-13 03:17:12,983 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:17:12,983 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:17:12,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 03:17:12,983 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:17:12,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:17:12,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1881980357, now seen corresponding path program 1 times [2022-12-13 03:17:12,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:17:12,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484650212] [2022-12-13 03:17:12,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:17:12,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:17:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:17:13,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:17:13,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:17:13,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484650212] [2022-12-13 03:17:13,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484650212] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:17:13,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:17:13,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:17:13,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11547422] [2022-12-13 03:17:13,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:17:13,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:17:13,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:17:13,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:17:13,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:17:13,065 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2022-12-13 03:17:13,065 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 290 flow. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2022-12-13 03:17:13,065 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:17:13,065 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2022-12-13 03:17:13,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:17:13,099 INFO L130 PetriNetUnfolder]: 24/73 cut-off events. [2022-12-13 03:17:13,100 INFO L131 PetriNetUnfolder]: For 107/113 co-relation queries the response was YES. [2022-12-13 03:17:13,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 73 events. 24/73 cut-off events. For 107/113 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 229 event pairs, 2 based on Foata normal form. 18/78 useless extension candidates. Maximal degree in co-relation 383. Up to 54 conditions per place. [2022-12-13 03:17:13,104 INFO L137 encePairwiseOnDemand]: 9/21 looper letters, 11 selfloop transitions, 15 changer transitions 0/29 dead transitions. [2022-12-13 03:17:13,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 29 transitions, 322 flow [2022-12-13 03:17:13,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:17:13,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:17:13,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2022-12-13 03:17:13,105 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2022-12-13 03:17:13,106 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 11 predicate places. [2022-12-13 03:17:13,107 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 29 transitions, 322 flow [2022-12-13 03:17:13,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 29 transitions, 322 flow [2022-12-13 03:17:13,109 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:17:13,109 INFO L89 Accepts]: Start accepts. Operand has 36 places, 29 transitions, 322 flow [2022-12-13 03:17:13,110 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:17:13,111 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:17:13,111 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 29 transitions, 322 flow [2022-12-13 03:17:13,112 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 29 transitions, 322 flow [2022-12-13 03:17:13,112 INFO L226 LiptonReduction]: Number of co-enabled transitions 12 [2022-12-13 03:17:13,114 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:17:13,115 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 6 [2022-12-13 03:17:13,115 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 29 transitions, 322 flow [2022-12-13 03:17:13,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2022-12-13 03:17:13,115 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:17:13,115 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:17:13,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 03:17:13,115 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:17:13,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:17:13,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1788089735, now seen corresponding path program 1 times [2022-12-13 03:17:13,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:17:13,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419526012] [2022-12-13 03:17:13,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:17:13,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:17:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:17:13,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:17:13,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:17:13,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419526012] [2022-12-13 03:17:13,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419526012] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:17:13,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:17:13,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:17:13,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625986359] [2022-12-13 03:17:13,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:17:13,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:17:13,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:17:13,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:17:13,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:17:13,198 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2022-12-13 03:17:13,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 29 transitions, 322 flow. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2022-12-13 03:17:13,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:17:13,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2022-12-13 03:17:13,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:17:13,247 INFO L130 PetriNetUnfolder]: 24/63 cut-off events. [2022-12-13 03:17:13,247 INFO L131 PetriNetUnfolder]: For 134/135 co-relation queries the response was YES. [2022-12-13 03:17:13,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 63 events. 24/63 cut-off events. For 134/135 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 184 event pairs, 0 based on Foata normal form. 10/60 useless extension candidates. Maximal degree in co-relation 375. Up to 45 conditions per place. [2022-12-13 03:17:13,248 INFO L137 encePairwiseOnDemand]: 11/19 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2022-12-13 03:17:13,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 32 transitions, 415 flow [2022-12-13 03:17:13,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 03:17:13,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 03:17:13,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2022-12-13 03:17:13,250 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4105263157894737 [2022-12-13 03:17:13,252 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 14 predicate places. [2022-12-13 03:17:13,252 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 32 transitions, 415 flow [2022-12-13 03:17:13,252 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-13 03:17:13,253 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:17:13,253 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 03:17:13,253 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 03:17:13,253 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 03:17:13,253 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:17:13,254 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1 [2022-12-13 03:17:13,254 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 03:17:13,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2022-12-13 03:17:13,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 03:17:13,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 03:17:13,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 03:17:13,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 03:17:13,258 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-13 03:17:13,260 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 03:17:13,261 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 03:17:13,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:17:13 BasicIcfg [2022-12-13 03:17:13,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 03:17:13,269 INFO L158 Benchmark]: Toolchain (without parser) took 3971.78ms. Allocated memory was 201.3MB in the beginning and 242.2MB in the end (delta: 40.9MB). Free memory was 175.9MB in the beginning and 211.0MB in the end (delta: -35.1MB). Peak memory consumption was 5.8MB. Max. memory is 8.0GB. [2022-12-13 03:17:13,269 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 201.3MB. Free memory was 176.9MB in the beginning and 176.7MB in the end (delta: 152.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 03:17:13,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.03ms. Allocated memory is still 201.3MB. Free memory was 175.4MB in the beginning and 153.4MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-13 03:17:13,270 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.45ms. Allocated memory is still 201.3MB. Free memory was 153.4MB in the beginning and 151.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 03:17:13,270 INFO L158 Benchmark]: Boogie Preprocessor took 14.91ms. Allocated memory is still 201.3MB. Free memory was 151.3MB in the beginning and 150.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 03:17:13,271 INFO L158 Benchmark]: RCFGBuilder took 331.82ms. Allocated memory is still 201.3MB. Free memory was 150.3MB in the beginning and 137.2MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-13 03:17:13,271 INFO L158 Benchmark]: TraceAbstraction took 3234.36ms. Allocated memory was 201.3MB in the beginning and 242.2MB in the end (delta: 40.9MB). Free memory was 136.1MB in the beginning and 211.0MB in the end (delta: -74.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 03:17:13,272 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 201.3MB. Free memory was 176.9MB in the beginning and 176.7MB in the end (delta: 152.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 335.03ms. Allocated memory is still 201.3MB. Free memory was 175.4MB in the beginning and 153.4MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.45ms. Allocated memory is still 201.3MB. Free memory was 153.4MB in the beginning and 151.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.91ms. Allocated memory is still 201.3MB. Free memory was 151.3MB in the beginning and 150.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 331.82ms. Allocated memory is still 201.3MB. Free memory was 150.3MB in the beginning and 137.2MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3234.36ms. Allocated memory was 201.3MB in the beginning and 242.2MB in the end (delta: 40.9MB). Free memory was 136.1MB in the beginning and 211.0MB in the end (delta: -74.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 62 PlacesBefore, 25 PlacesAfterwards, 56 TransitionsBefore, 19 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 24 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 622, independent: 584, independent conditional: 584, independent unconditional: 0, dependent: 38, dependent conditional: 38, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 622, independent: 584, independent conditional: 0, independent unconditional: 584, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 622, independent: 584, independent conditional: 0, independent unconditional: 584, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 622, independent: 584, independent conditional: 0, independent unconditional: 584, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 433, independent: 407, independent conditional: 0, independent unconditional: 407, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 433, independent: 404, independent conditional: 0, independent unconditional: 404, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 29, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 80, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 622, independent: 177, independent conditional: 0, independent unconditional: 177, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 433, unknown conditional: 0, unknown unconditional: 433] , Statistics on independence cache: Total cache size (in pairs): 707, Positive cache size: 681, Positive conditional cache size: 0, Positive unconditional cache size: 681, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 27 PlacesBefore, 27 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 153, independent: 136, independent conditional: 136, independent unconditional: 0, dependent: 17, dependent conditional: 17, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 153, independent: 136, independent conditional: 46, independent unconditional: 90, dependent: 17, dependent conditional: 15, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 153, independent: 136, independent conditional: 0, independent unconditional: 136, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 153, independent: 136, independent conditional: 0, independent unconditional: 136, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 31, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 31, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 153, independent: 110, independent conditional: 0, independent unconditional: 110, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 31, unknown conditional: 0, unknown unconditional: 31] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 61, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 31 PlacesBefore, 31 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 74 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 32 PlacesBefore, 32 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 42 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 34 PlacesBefore, 34 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 14 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, independent: 2, independent conditional: 2, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 29, Positive conditional cache size: 1, Positive unconditional cache size: 28, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 36 PlacesBefore, 36 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 12 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 29, Positive conditional cache size: 1, Positive unconditional cache size: 28, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 29, Positive conditional cache size: 1, Positive unconditional cache size: 28, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 168 IncrementalHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 5 mSDtfsCounter, 168 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=322occurred in iteration=5, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 174 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 03:17:13,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...