/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -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 12:04:21,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:04:21,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:04:21,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:04:21,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:04:21,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:04:21,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:04:21,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:04:21,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:04:21,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:04:21,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:04:21,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:04:21,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:04:21,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:04:21,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:04:21,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:04:21,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:04:21,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:04:21,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:04:21,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:04:21,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:04:21,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:04:21,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:04:21,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:04:21,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:04:21,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:04:21,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:04:21,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:04:21,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:04:21,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:04:21,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:04:21,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:04:21,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:04:21,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:04:21,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:04:21,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:04:21,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:04:21,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:04:21,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:04:21,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:04:21,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:04:21,663 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-13 12:04:21,694 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:04:21,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:04:21,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:04:21,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:04:21,697 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:04:21,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:04:21,697 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:04:21,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:04:21,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:04:21,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:04:21,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:04:21,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:04:21,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:04:21,699 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:04:21,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:04:21,699 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:04:21,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:04:21,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:04:21,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:04:21,699 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 12:04:21,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:04:21,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:04:21,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:04:21,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:04:21,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:04:21,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:04:21,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:04:21,700 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 12:04:21,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 12:04:21,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:04:22,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:04:22,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:04:22,013 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:04:22,013 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:04:22,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.i [2022-12-13 12:04:23,061 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:04:23,325 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:04:23,326 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.i [2022-12-13 12:04:23,351 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9c251835/16e8e57e0ada459b88c97e6db690c0dd/FLAGaf93d8005 [2022-12-13 12:04:23,363 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9c251835/16e8e57e0ada459b88c97e6db690c0dd [2022-12-13 12:04:23,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:04:23,366 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 12:04:23,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:04:23,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:04:23,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:04:23,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:04:23" (1/1) ... [2022-12-13 12:04:23,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f5c038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:04:23, skipping insertion in model container [2022-12-13 12:04:23,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:04:23" (1/1) ... [2022-12-13 12:04:23,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:04:23,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:04:23,529 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 12:04:23,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,649 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,649 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,649 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,649 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:04:23,665 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:04:23,673 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 12:04:23,699 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,699 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,699 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,699 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,702 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:04:23,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:04:23,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:04:23,730 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:04:23,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:04:23 WrapperNode [2022-12-13 12:04:23,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:04:23,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:04:23,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:04:23,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:04:23,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:04:23" (1/1) ... [2022-12-13 12:04:23,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:04:23" (1/1) ... [2022-12-13 12:04:23,774 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-13 12:04:23,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:04:23,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:04:23,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:04:23,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:04:23,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:04:23" (1/1) ... [2022-12-13 12:04:23,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:04:23" (1/1) ... [2022-12-13 12:04:23,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:04:23" (1/1) ... [2022-12-13 12:04:23,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:04:23" (1/1) ... [2022-12-13 12:04:23,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:04:23" (1/1) ... [2022-12-13 12:04:23,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:04:23" (1/1) ... [2022-12-13 12:04:23,800 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:04:23" (1/1) ... [2022-12-13 12:04:23,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:04:23" (1/1) ... [2022-12-13 12:04:23,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:04:23,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:04:23,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:04:23,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:04:23,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:04:23" (1/1) ... [2022-12-13 12:04:23,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:04:23,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 12:04:23,844 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 12:04:23,867 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 12:04:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:04:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 12:04:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:04:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:04:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:04:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 12:04:23,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 12:04:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 12:04:23,882 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 12:04:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:04:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 12:04:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:04:23,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:04:23,883 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 12:04:23,975 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 12:04:23,976 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:04:24,061 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 12:04:24,065 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:04:24,065 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:04:24,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:04:24 BoogieIcfgContainer [2022-12-13 12:04:24,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:04:24,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:04:24,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:04:24,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:04:24,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:04:23" (1/3) ... [2022-12-13 12:04:24,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109fea8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:04:24, skipping insertion in model container [2022-12-13 12:04:24,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:04:23" (2/3) ... [2022-12-13 12:04:24,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109fea8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:04:24, skipping insertion in model container [2022-12-13 12:04:24,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:04:24" (3/3) ... [2022-12-13 12:04:24,072 INFO L112 eAbstractionObserver]: Analyzing ICFG safe022_tso.i [2022-12-13 12:04:24,083 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:04:24,083 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 12:04:24,083 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:04:24,116 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:04:24,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 68 transitions, 146 flow [2022-12-13 12:04:24,198 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2022-12-13 12:04:24,198 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:04:24,201 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 12:04:24,201 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 68 transitions, 146 flow [2022-12-13 12:04:24,204 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 56 transitions, 118 flow [2022-12-13 12:04:24,205 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:04:24,229 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 56 transitions, 118 flow [2022-12-13 12:04:24,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 56 transitions, 118 flow [2022-12-13 12:04:24,260 INFO L130 PetriNetUnfolder]: 1/56 cut-off events. [2022-12-13 12:04:24,261 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:04:24,261 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 12:04:24,262 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 56 transitions, 118 flow [2022-12-13 12:04:24,262 INFO L226 LiptonReduction]: Number of co-enabled transitions 540 [2022-12-13 12:04:25,735 INFO L241 LiptonReduction]: Total number of compositions: 44 [2022-12-13 12:04:25,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:04:25,752 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;@51b5df4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 12:04:25,752 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 12:04:25,755 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2022-12-13 12:04:25,755 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:04:25,755 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:04:25,756 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:04:25,756 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 12:04:25,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:04:25,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1567709208, now seen corresponding path program 1 times [2022-12-13 12:04:25,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:04:25,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368282493] [2022-12-13 12:04:25,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:04:25,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:04:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:04:26,087 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 12:04:26,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:04:26,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368282493] [2022-12-13 12:04:26,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368282493] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:04:26,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:04:26,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:04:26,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194526846] [2022-12-13 12:04:26,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:04:26,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:04:26,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:04:26,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:04:26,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:04:26,117 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 19 [2022-12-13 12:04:26,118 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 12:04:26,119 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:04:26,119 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 19 [2022-12-13 12:04:26,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:04:26,186 INFO L130 PetriNetUnfolder]: 73/153 cut-off events. [2022-12-13 12:04:26,186 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:04:26,187 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 12:04:26,189 INFO L137 encePairwiseOnDemand]: 15/19 looper letters, 15 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2022-12-13 12:04:26,189 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 84 flow [2022-12-13 12:04:26,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:04:26,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:04:26,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2022-12-13 12:04:26,200 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6140350877192983 [2022-12-13 12:04:26,201 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 44 flow. Second operand 3 states and 35 transitions. [2022-12-13 12:04:26,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 22 transitions, 84 flow [2022-12-13 12:04:26,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 22 transitions, 82 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:04:26,207 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 48 flow [2022-12-13 12:04:26,208 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2022-12-13 12:04:26,211 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2022-12-13 12:04:26,211 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:04:26,212 INFO L89 Accepts]: Start accepts. Operand has 26 places, 18 transitions, 48 flow [2022-12-13 12:04:26,216 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:04:26,216 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:04:26,216 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 18 transitions, 48 flow [2022-12-13 12:04:26,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 18 transitions, 48 flow [2022-12-13 12:04:26,220 INFO L130 PetriNetUnfolder]: 0/18 cut-off events. [2022-12-13 12:04:26,220 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:04:26,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 18 events. 0/18 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 29 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-13 12:04:26,225 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 18 transitions, 48 flow [2022-12-13 12:04:26,225 INFO L226 LiptonReduction]: Number of co-enabled transitions 140 [2022-12-13 12:04:26,260 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 12:04:26,261 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 50 [2022-12-13 12:04:26,261 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 48 flow [2022-12-13 12:04:26,262 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 12:04:26,262 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:04:26,262 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:04:26,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:04:26,262 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 12:04:26,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:04:26,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1354345053, now seen corresponding path program 1 times [2022-12-13 12:04:26,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:04:26,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211150112] [2022-12-13 12:04:26,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:04:26,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:04:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:04:26,379 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 12:04:26,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:04:26,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211150112] [2022-12-13 12:04:26,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211150112] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:04:26,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:04:26,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:04:26,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403601049] [2022-12-13 12:04:26,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:04:26,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:04:26,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:04:26,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:04:26,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:04:26,382 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 18 [2022-12-13 12:04:26,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 48 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 12:04:26,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:04:26,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 18 [2022-12-13 12:04:26,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:04:26,449 INFO L130 PetriNetUnfolder]: 98/202 cut-off events. [2022-12-13 12:04:26,450 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-12-13 12:04:26,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 202 events. 98/202 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 754 event pairs, 17 based on Foata normal form. 5/174 useless extension candidates. Maximal degree in co-relation 429. Up to 97 conditions per place. [2022-12-13 12:04:26,451 INFO L137 encePairwiseOnDemand]: 13/18 looper letters, 23 selfloop transitions, 6 changer transitions 0/33 dead transitions. [2022-12-13 12:04:26,451 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 33 transitions, 143 flow [2022-12-13 12:04:26,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:04:26,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:04:26,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2022-12-13 12:04:26,453 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2022-12-13 12:04:26,453 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 48 flow. Second operand 5 states and 51 transitions. [2022-12-13 12:04:26,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 33 transitions, 143 flow [2022-12-13 12:04:26,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 33 transitions, 137 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:04:26,454 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 79 flow [2022-12-13 12:04:26,454 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=79, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2022-12-13 12:04:26,455 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 5 predicate places. [2022-12-13 12:04:26,455 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:04:26,455 INFO L89 Accepts]: Start accepts. Operand has 30 places, 22 transitions, 79 flow [2022-12-13 12:04:26,455 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:04:26,455 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:04:26,456 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 22 transitions, 79 flow [2022-12-13 12:04:26,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 22 transitions, 79 flow [2022-12-13 12:04:26,459 INFO L130 PetriNetUnfolder]: 2/30 cut-off events. [2022-12-13 12:04:26,459 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 12:04:26,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 30 events. 2/30 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 86 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 51. Up to 6 conditions per place. [2022-12-13 12:04:26,459 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 22 transitions, 79 flow [2022-12-13 12:04:26,460 INFO L226 LiptonReduction]: Number of co-enabled transitions 150 [2022-12-13 12:04:26,460 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 12:04:26,461 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 6 [2022-12-13 12:04:26,461 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 79 flow [2022-12-13 12:04:26,462 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 12:04:26,462 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:04:26,462 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:04:26,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:04:26,462 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 12:04:26,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:04:26,463 INFO L85 PathProgramCache]: Analyzing trace with hash 964974999, now seen corresponding path program 1 times [2022-12-13 12:04:26,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:04:26,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418127657] [2022-12-13 12:04:26,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:04:26,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:04:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:04:26,588 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 12:04:26,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:04:26,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418127657] [2022-12-13 12:04:26,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418127657] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:04:26,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:04:26,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:04:26,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845791031] [2022-12-13 12:04:26,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:04:26,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:04:26,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:04:26,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:04:26,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:04:26,594 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 18 [2022-12-13 12:04:26,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 79 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 12:04:26,594 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:04:26,594 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 18 [2022-12-13 12:04:26,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:04:26,661 INFO L130 PetriNetUnfolder]: 103/225 cut-off events. [2022-12-13 12:04:26,661 INFO L131 PetriNetUnfolder]: For 161/161 co-relation queries the response was YES. [2022-12-13 12:04:26,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 553 conditions, 225 events. 103/225 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 949 event pairs, 40 based on Foata normal form. 15/197 useless extension candidates. Maximal degree in co-relation 540. Up to 82 conditions per place. [2022-12-13 12:04:26,665 INFO L137 encePairwiseOnDemand]: 14/18 looper letters, 17 selfloop transitions, 3 changer transitions 9/32 dead transitions. [2022-12-13 12:04:26,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 32 transitions, 157 flow [2022-12-13 12:04:26,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:04:26,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:04:26,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2022-12-13 12:04:26,667 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.625 [2022-12-13 12:04:26,667 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 79 flow. Second operand 4 states and 45 transitions. [2022-12-13 12:04:26,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 32 transitions, 157 flow [2022-12-13 12:04:26,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 32 transitions, 157 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:04:26,670 INFO L231 Difference]: Finished difference. Result has 35 places, 17 transitions, 72 flow [2022-12-13 12:04:26,670 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=35, PETRI_TRANSITIONS=17} [2022-12-13 12:04:26,671 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 10 predicate places. [2022-12-13 12:04:26,671 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:04:26,673 INFO L89 Accepts]: Start accepts. Operand has 35 places, 17 transitions, 72 flow [2022-12-13 12:04:26,677 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:04:26,677 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:04:26,678 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 17 transitions, 72 flow [2022-12-13 12:04:26,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 17 transitions, 72 flow [2022-12-13 12:04:26,681 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2022-12-13 12:04:26,682 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-13 12:04:26,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 17 events. 0/17 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 26 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-13 12:04:26,682 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 17 transitions, 72 flow [2022-12-13 12:04:26,682 INFO L226 LiptonReduction]: Number of co-enabled transitions 96 [2022-12-13 12:04:26,719 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 12:04:26,721 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 50 [2022-12-13 12:04:26,721 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 16 transitions, 70 flow [2022-12-13 12:04:26,721 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 12:04:26,721 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:04:26,721 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:04:26,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:04:26,722 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 12:04:26,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:04:26,722 INFO L85 PathProgramCache]: Analyzing trace with hash 964987027, now seen corresponding path program 1 times [2022-12-13 12:04:26,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:04:26,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4427487] [2022-12-13 12:04:26,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:04:26,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:04:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:04:26,821 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 12:04:26,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:04:26,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4427487] [2022-12-13 12:04:26,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4427487] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:04:26,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:04:26,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:04:26,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584552920] [2022-12-13 12:04:26,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:04:26,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:04:26,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:04:26,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:04:26,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:04:26,823 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 16 [2022-12-13 12:04:26,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 16 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 12:04:26,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:04:26,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 16 [2022-12-13 12:04:26,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:04:26,871 INFO L130 PetriNetUnfolder]: 59/127 cut-off events. [2022-12-13 12:04:26,871 INFO L131 PetriNetUnfolder]: For 240/240 co-relation queries the response was YES. [2022-12-13 12:04:26,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 127 events. 59/127 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 483 event pairs, 20 based on Foata normal form. 3/82 useless extension candidates. Maximal degree in co-relation 380. Up to 115 conditions per place. [2022-12-13 12:04:26,872 INFO L137 encePairwiseOnDemand]: 8/16 looper letters, 16 selfloop transitions, 7 changer transitions 0/25 dead transitions. [2022-12-13 12:04:26,872 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 143 flow [2022-12-13 12:04:26,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:04:26,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:04:26,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2022-12-13 12:04:26,874 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.625 [2022-12-13 12:04:26,874 INFO L175 Difference]: Start difference. First operand has 32 places, 16 transitions, 70 flow. Second operand 3 states and 30 transitions. [2022-12-13 12:04:26,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 143 flow [2022-12-13 12:04:26,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 25 transitions, 110 flow, removed 5 selfloop flow, removed 9 redundant places. [2022-12-13 12:04:26,875 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 89 flow [2022-12-13 12:04:26,876 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2022-12-13 12:04:26,876 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2022-12-13 12:04:26,876 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:04:26,876 INFO L89 Accepts]: Start accepts. Operand has 26 places, 22 transitions, 89 flow [2022-12-13 12:04:26,877 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:04:26,877 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:04:26,877 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 22 transitions, 89 flow [2022-12-13 12:04:26,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 89 flow [2022-12-13 12:04:26,882 INFO L130 PetriNetUnfolder]: 27/80 cut-off events. [2022-12-13 12:04:26,882 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:04:26,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 80 events. 27/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 338 event pairs, 9 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 160. Up to 58 conditions per place. [2022-12-13 12:04:26,883 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 22 transitions, 89 flow [2022-12-13 12:04:26,883 INFO L226 LiptonReduction]: Number of co-enabled transitions 56 [2022-12-13 12:04:26,970 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 12:04:26,971 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 95 [2022-12-13 12:04:26,971 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 92 flow [2022-12-13 12:04:26,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 12:04:26,971 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:04:26,972 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:04:26,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:04:26,972 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 12:04:26,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:04:26,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1205925878, now seen corresponding path program 1 times [2022-12-13 12:04:26,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:04:26,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038668247] [2022-12-13 12:04:26,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:04:26,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:04:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:04:27,031 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 12:04:27,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:04:27,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038668247] [2022-12-13 12:04:27,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038668247] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:04:27,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:04:27,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:04:27,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676387428] [2022-12-13 12:04:27,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:04:27,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:04:27,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:04:27,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:04:27,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:04:27,033 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 19 [2022-12-13 12:04:27,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 12:04:27,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:04:27,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 19 [2022-12-13 12:04:27,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:04:27,060 INFO L130 PetriNetUnfolder]: 17/73 cut-off events. [2022-12-13 12:04:27,061 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-12-13 12:04:27,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 73 events. 17/73 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 260 event pairs, 2 based on Foata normal form. 9/62 useless extension candidates. Maximal degree in co-relation 222. Up to 40 conditions per place. [2022-12-13 12:04:27,061 INFO L137 encePairwiseOnDemand]: 8/19 looper letters, 10 selfloop transitions, 13 changer transitions 0/25 dead transitions. [2022-12-13 12:04:27,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 25 transitions, 148 flow [2022-12-13 12:04:27,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:04:27,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:04:27,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2022-12-13 12:04:27,062 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.42105263157894735 [2022-12-13 12:04:27,062 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 92 flow. Second operand 4 states and 32 transitions. [2022-12-13 12:04:27,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 25 transitions, 148 flow [2022-12-13 12:04:27,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 25 transitions, 136 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 12:04:27,063 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 121 flow [2022-12-13 12:04:27,063 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=121, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2022-12-13 12:04:27,064 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2022-12-13 12:04:27,064 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:04:27,064 INFO L89 Accepts]: Start accepts. Operand has 28 places, 22 transitions, 121 flow [2022-12-13 12:04:27,064 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:04:27,065 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:04:27,065 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 22 transitions, 121 flow [2022-12-13 12:04:27,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 22 transitions, 121 flow [2022-12-13 12:04:27,069 INFO L130 PetriNetUnfolder]: 9/56 cut-off events. [2022-12-13 12:04:27,069 INFO L131 PetriNetUnfolder]: For 9/12 co-relation queries the response was YES. [2022-12-13 12:04:27,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 56 events. 9/56 cut-off events. For 9/12 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 200 event pairs, 0 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 144. Up to 34 conditions per place. [2022-12-13 12:04:27,069 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 22 transitions, 121 flow [2022-12-13 12:04:27,069 INFO L226 LiptonReduction]: Number of co-enabled transitions 24 [2022-12-13 12:04:27,322 INFO L241 LiptonReduction]: Total number of compositions: 3 [2022-12-13 12:04:27,322 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 258 [2022-12-13 12:04:27,323 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 120 flow [2022-12-13 12:04:27,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 12:04:27,323 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:04:27,323 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:04:27,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:04:27,323 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 12:04:27,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:04:27,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1354327115, now seen corresponding path program 1 times [2022-12-13 12:04:27,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:04:27,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583957701] [2022-12-13 12:04:27,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:04:27,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:04:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:04:27,371 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 12:04:27,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:04:27,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583957701] [2022-12-13 12:04:27,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583957701] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:04:27,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:04:27,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:04:27,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145938077] [2022-12-13 12:04:27,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:04:27,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:04:27,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:04:27,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:04:27,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:04:27,373 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 19 [2022-12-13 12:04:27,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 12:04:27,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:04:27,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 19 [2022-12-13 12:04:27,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:04:27,398 INFO L130 PetriNetUnfolder]: 17/46 cut-off events. [2022-12-13 12:04:27,398 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-12-13 12:04:27,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 46 events. 17/46 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 145 event pairs, 0 based on Foata normal form. 9/38 useless extension candidates. Maximal degree in co-relation 184. Up to 31 conditions per place. [2022-12-13 12:04:27,398 INFO L137 encePairwiseOnDemand]: 8/19 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2022-12-13 12:04:27,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 156 flow [2022-12-13 12:04:27,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:04:27,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:04:27,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2022-12-13 12:04:27,414 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.35526315789473684 [2022-12-13 12:04:27,414 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 120 flow. Second operand 4 states and 27 transitions. [2022-12-13 12:04:27,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 156 flow [2022-12-13 12:04:27,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 111 flow, removed 6 selfloop flow, removed 4 redundant places. [2022-12-13 12:04:27,415 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2022-12-13 12:04:27,415 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2022-12-13 12:04:27,416 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, -2 predicate places. [2022-12-13 12:04:27,416 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:04:27,416 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 0 transitions, 0 flow [2022-12-13 12:04:27,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 12:04:27,417 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 12:04:27,417 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:04:27,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-13 12:04:27,417 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 12:04:27,417 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 12:04:27,417 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 12:04:27,418 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-13 12:04:27,418 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 12:04:27,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 12:04:27,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 12:04:27,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 12:04:27,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 12:04:27,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:04:27,420 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-13 12:04:27,422 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 12:04:27,422 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:04:27,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:04:27 BasicIcfg [2022-12-13 12:04:27,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:04:27,424 INFO L158 Benchmark]: Toolchain (without parser) took 4058.55ms. Allocated memory was 172.0MB in the beginning and 206.6MB in the end (delta: 34.6MB). Free memory was 145.5MB in the beginning and 178.6MB in the end (delta: -33.2MB). Peak memory consumption was 2.7MB. Max. memory is 8.0GB. [2022-12-13 12:04:27,425 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 127.9MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 12:04:27,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.91ms. Allocated memory is still 172.0MB. Free memory was 145.5MB in the beginning and 123.4MB in the end (delta: 22.1MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-13 12:04:27,425 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.51ms. Allocated memory is still 172.0MB. Free memory was 123.4MB in the beginning and 121.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 12:04:27,425 INFO L158 Benchmark]: Boogie Preprocessor took 26.39ms. Allocated memory is still 172.0MB. Free memory was 121.3MB in the beginning and 120.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 12:04:27,425 INFO L158 Benchmark]: RCFGBuilder took 263.94ms. Allocated memory is still 172.0MB. Free memory was 120.0MB in the beginning and 140.4MB in the end (delta: -20.4MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-12-13 12:04:27,426 INFO L158 Benchmark]: TraceAbstraction took 3355.92ms. Allocated memory was 172.0MB in the beginning and 206.6MB in the end (delta: 34.6MB). Free memory was 139.3MB in the beginning and 178.6MB in the end (delta: -39.3MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 12:04:27,427 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 127.9MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 363.91ms. Allocated memory is still 172.0MB. Free memory was 145.5MB in the beginning and 123.4MB in the end (delta: 22.1MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.51ms. Allocated memory is still 172.0MB. Free memory was 123.4MB in the beginning and 121.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.39ms. Allocated memory is still 172.0MB. Free memory was 121.3MB in the beginning and 120.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 263.94ms. Allocated memory is still 172.0MB. Free memory was 120.0MB in the beginning and 140.4MB in the end (delta: -20.4MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 3355.92ms. Allocated memory was 172.0MB in the beginning and 206.6MB in the end (delta: 34.6MB). Free memory was 139.3MB in the beginning and 178.6MB in the end (delta: -39.3MB). 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: 1.5s, 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: 99, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 72, dependent conditional: 0, dependent unconditional: 72, 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: 0.0s, 26 PlacesBefore, 26 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 81, independent: 65, independent conditional: 65, independent unconditional: 0, dependent: 16, dependent conditional: 16, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 81, independent: 65, independent conditional: 1, independent unconditional: 64, dependent: 16, dependent conditional: 4, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 81, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 81, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 57, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 57, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 32, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 81, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 57, unknown conditional: 0, unknown unconditional: 57] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 30 PlacesBefore, 30 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 150 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, independent: 22, independent conditional: 22, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 25, independent: 22, independent conditional: 2, independent unconditional: 20, dependent: 3, dependent conditional: 2, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 25, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, 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: 3, independent: 3, independent conditional: 0, independent unconditional: 3, 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: 25, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 33 PlacesBefore, 32 PlacesAfterwards, 17 TransitionsBefore, 16 TransitionsAfterwards, 96 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 70, independent: 48, independent conditional: 48, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 70, independent: 48, independent conditional: 2, independent unconditional: 46, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 70, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 70, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 70, independent: 42, independent conditional: 0, independent unconditional: 42, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 2, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 26 PlacesBefore, 26 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 56 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29, independent: 15, independent conditional: 15, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 29, independent: 15, independent conditional: 15, independent unconditional: 0, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 29, independent: 15, independent conditional: 15, independent unconditional: 0, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 29, independent: 15, independent conditional: 15, independent unconditional: 0, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 9, 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: 9, independent: 9, independent conditional: 0, independent unconditional: 9, 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: 29, independent: 6, independent conditional: 6, independent unconditional: 0, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 94, Positive cache size: 82, Positive conditional cache size: 9, Positive unconditional cache size: 73, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, 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: 0.3s, 28 PlacesBefore, 25 PlacesAfterwards, 22 TransitionsBefore, 19 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 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): 98, Positive cache size: 86, Positive conditional cache size: 12, Positive unconditional cache size: 74, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, 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): 98, Positive cache size: 86, Positive conditional cache size: 12, Positive unconditional cache size: 74, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, 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: 3.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 178 IncrementalHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 6 mSDtfsCounter, 178 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=5, InterpolantAutomatonStates: 23, 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, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 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 12:04:27,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...