/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 02:04:26,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 02:04:26,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 02:04:26,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 02:04:26,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 02:04:26,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 02:04:26,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 02:04:26,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 02:04:26,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 02:04:26,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 02:04:26,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 02:04:26,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 02:04:26,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 02:04:26,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 02:04:26,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 02:04:26,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 02:04:26,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 02:04:26,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 02:04:26,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 02:04:26,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 02:04:26,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 02:04:26,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 02:04:26,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 02:04:26,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 02:04:26,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 02:04:26,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 02:04:26,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 02:04:26,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 02:04:26,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 02:04:26,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 02:04:26,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 02:04:26,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 02:04:26,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 02:04:26,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 02:04:26,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 02:04:26,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 02:04:26,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 02:04:26,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 02:04:26,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 02:04:26,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 02:04:26,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 02:04:26,565 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-13 02:04:26,600 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 02:04:26,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 02:04:26,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 02:04:26,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 02:04:26,602 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 02:04:26,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 02:04:26,603 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 02:04:26,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 02:04:26,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 02:04:26,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 02:04:26,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 02:04:26,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 02:04:26,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 02:04:26,605 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 02:04:26,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 02:04:26,606 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 02:04:26,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 02:04:26,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 02:04:26,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 02:04:26,606 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 02:04:26,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 02:04:26,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 02:04:26,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 02:04:26,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 02:04:26,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 02:04:26,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 02:04:26,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 02:04:26,607 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 02:04:26,607 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 02:04:26,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 02:04:26,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 02:04:26,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 02:04:26,949 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 02:04:26,950 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 02:04:26,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2022-12-13 02:04:28,039 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 02:04:28,263 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 02:04:28,263 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2022-12-13 02:04:28,268 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/263d43673/c5f2c1570d374b57936eff969f1e811c/FLAGf0a0d5c47 [2022-12-13 02:04:28,279 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/263d43673/c5f2c1570d374b57936eff969f1e811c [2022-12-13 02:04:28,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 02:04:28,282 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 02:04:28,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 02:04:28,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 02:04:28,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 02:04:28,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:04:28" (1/1) ... [2022-12-13 02:04:28,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e579e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:28, skipping insertion in model container [2022-12-13 02:04:28,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:04:28" (1/1) ... [2022-12-13 02:04:28,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 02:04:28,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 02:04:28,472 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,482 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,484 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,487 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2022-12-13 02:04:28,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 02:04:28,546 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 02:04:28,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,569 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:04:28,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:04:28,582 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2022-12-13 02:04:28,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 02:04:28,597 INFO L208 MainTranslator]: Completed translation [2022-12-13 02:04:28,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:28 WrapperNode [2022-12-13 02:04:28,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 02:04:28,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 02:04:28,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 02:04:28,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 02:04:28,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:28" (1/1) ... [2022-12-13 02:04:28,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:28" (1/1) ... [2022-12-13 02:04:28,655 INFO L138 Inliner]: procedures = 27, calls = 75, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 174 [2022-12-13 02:04:28,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 02:04:28,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 02:04:28,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 02:04:28,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 02:04:28,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:28" (1/1) ... [2022-12-13 02:04:28,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:28" (1/1) ... [2022-12-13 02:04:28,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:28" (1/1) ... [2022-12-13 02:04:28,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:28" (1/1) ... [2022-12-13 02:04:28,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:28" (1/1) ... [2022-12-13 02:04:28,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:28" (1/1) ... [2022-12-13 02:04:28,700 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:28" (1/1) ... [2022-12-13 02:04:28,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:28" (1/1) ... [2022-12-13 02:04:28,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 02:04:28,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 02:04:28,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 02:04:28,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 02:04:28,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:28" (1/1) ... [2022-12-13 02:04:28,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 02:04:28,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 02:04:28,740 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 02:04:28,763 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 02:04:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 02:04:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 02:04:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 02:04:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 02:04:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 02:04:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 02:04:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 02:04:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 02:04:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 02:04:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 02:04:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-13 02:04:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-13 02:04:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 02:04:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-13 02:04:28,780 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-13 02:04:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 02:04:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 02:04:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 02:04:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 02:04:28,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 02:04:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 02:04:28,783 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 02:04:28,948 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 02:04:28,950 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 02:04:29,251 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 02:04:29,376 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 02:04:29,376 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-13 02:04:29,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:04:29 BoogieIcfgContainer [2022-12-13 02:04:29,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 02:04:29,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 02:04:29,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 02:04:29,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 02:04:29,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:04:28" (1/3) ... [2022-12-13 02:04:29,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de73c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:04:29, skipping insertion in model container [2022-12-13 02:04:29,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:28" (2/3) ... [2022-12-13 02:04:29,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de73c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:04:29, skipping insertion in model container [2022-12-13 02:04:29,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:04:29" (3/3) ... [2022-12-13 02:04:29,386 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2022-12-13 02:04:29,412 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 02:04:29,412 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 02:04:29,413 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 02:04:29,526 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-12-13 02:04:29,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 183 transitions, 406 flow [2022-12-13 02:04:29,673 INFO L130 PetriNetUnfolder]: 14/178 cut-off events. [2022-12-13 02:04:29,674 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 02:04:29,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 178 events. 14/178 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 131 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 143. Up to 2 conditions per place. [2022-12-13 02:04:29,705 INFO L82 GeneralOperation]: Start removeDead. Operand has 185 places, 183 transitions, 406 flow [2022-12-13 02:04:29,710 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 164 transitions, 358 flow [2022-12-13 02:04:29,712 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:04:29,727 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 164 transitions, 358 flow [2022-12-13 02:04:29,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 166 places, 164 transitions, 358 flow [2022-12-13 02:04:29,788 INFO L130 PetriNetUnfolder]: 14/164 cut-off events. [2022-12-13 02:04:29,788 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 02:04:29,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 164 events. 14/164 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 130 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 143. Up to 2 conditions per place. [2022-12-13 02:04:29,794 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 164 transitions, 358 flow [2022-12-13 02:04:29,794 INFO L226 LiptonReduction]: Number of co-enabled transitions 3806 [2022-12-13 02:04:39,692 INFO L241 LiptonReduction]: Total number of compositions: 126 [2022-12-13 02:04:39,705 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 02:04:39,711 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;@677a1671, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 02:04:39,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 02:04:39,719 INFO L130 PetriNetUnfolder]: 5/37 cut-off events. [2022-12-13 02:04:39,720 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 02:04:39,720 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:04:39,720 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:04:39,721 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 02:04:39,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:04:39,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1329809375, now seen corresponding path program 1 times [2022-12-13 02:04:39,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:04:39,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574250636] [2022-12-13 02:04:39,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:04:39,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:04:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:04:40,155 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 02:04:40,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:04:40,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574250636] [2022-12-13 02:04:40,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574250636] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 02:04:40,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 02:04:40,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 02:04:40,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517162147] [2022-12-13 02:04:40,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 02:04:40,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 02:04:40,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:04:40,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 02:04:40,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 02:04:40,193 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 38 [2022-12-13 02:04:40,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 02:04:40,195 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:04:40,195 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 38 [2022-12-13 02:04:40,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:04:41,043 INFO L130 PetriNetUnfolder]: 6110/7594 cut-off events. [2022-12-13 02:04:41,043 INFO L131 PetriNetUnfolder]: For 287/287 co-relation queries the response was YES. [2022-12-13 02:04:41,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15782 conditions, 7594 events. 6110/7594 cut-off events. For 287/287 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 30199 event pairs, 2980 based on Foata normal form. 0/5304 useless extension candidates. Maximal degree in co-relation 13404. Up to 6012 conditions per place. [2022-12-13 02:04:41,096 INFO L137 encePairwiseOnDemand]: 34/38 looper letters, 52 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2022-12-13 02:04:41,096 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 57 transitions, 266 flow [2022-12-13 02:04:41,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 02:04:41,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 02:04:41,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2022-12-13 02:04:41,107 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.42105263157894735 [2022-12-13 02:04:41,109 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 106 flow. Second operand 4 states and 64 transitions. [2022-12-13 02:04:41,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 57 transitions, 266 flow [2022-12-13 02:04:41,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 57 transitions, 238 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-12-13 02:04:41,130 INFO L231 Difference]: Finished difference. Result has 43 places, 39 transitions, 100 flow [2022-12-13 02:04:41,132 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=43, PETRI_TRANSITIONS=39} [2022-12-13 02:04:41,136 INFO L295 CegarLoopForPetriNet]: 49 programPoint places, -6 predicate places. [2022-12-13 02:04:41,136 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:04:41,137 INFO L89 Accepts]: Start accepts. Operand has 43 places, 39 transitions, 100 flow [2022-12-13 02:04:41,141 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:04:41,141 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:04:41,141 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 39 transitions, 100 flow [2022-12-13 02:04:41,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 39 transitions, 100 flow [2022-12-13 02:04:41,151 INFO L130 PetriNetUnfolder]: 5/39 cut-off events. [2022-12-13 02:04:41,151 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 02:04:41,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 39 events. 5/39 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 35. Up to 4 conditions per place. [2022-12-13 02:04:41,154 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 39 transitions, 100 flow [2022-12-13 02:04:41,154 INFO L226 LiptonReduction]: Number of co-enabled transitions 484 [2022-12-13 02:04:41,175 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 02:04:41,176 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 40 [2022-12-13 02:04:41,176 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 39 transitions, 100 flow [2022-12-13 02:04:41,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 02:04:41,177 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:04:41,177 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:04:41,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 02:04:41,177 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 02:04:41,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:04:41,178 INFO L85 PathProgramCache]: Analyzing trace with hash 200545949, now seen corresponding path program 1 times [2022-12-13 02:04:41,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:04:41,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001762697] [2022-12-13 02:04:41,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:04:41,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:04:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:04:41,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 02:04:41,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:04:41,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001762697] [2022-12-13 02:04:41,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001762697] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 02:04:41,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 02:04:41,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 02:04:41,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908046648] [2022-12-13 02:04:41,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 02:04:41,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 02:04:41,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:04:41,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 02:04:41,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 02:04:41,296 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 38 [2022-12-13 02:04:41,296 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 39 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 02:04:41,296 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:04:41,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 38 [2022-12-13 02:04:41,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:04:42,072 INFO L130 PetriNetUnfolder]: 7432/9228 cut-off events. [2022-12-13 02:04:42,072 INFO L131 PetriNetUnfolder]: For 1624/1624 co-relation queries the response was YES. [2022-12-13 02:04:42,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20378 conditions, 9228 events. 7432/9228 cut-off events. For 1624/1624 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 37524 event pairs, 3779 based on Foata normal form. 0/6511 useless extension candidates. Maximal degree in co-relation 6677. Up to 7480 conditions per place. [2022-12-13 02:04:42,124 INFO L137 encePairwiseOnDemand]: 34/38 looper letters, 54 selfloop transitions, 3 changer transitions 0/59 dead transitions. [2022-12-13 02:04:42,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 59 transitions, 268 flow [2022-12-13 02:04:42,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 02:04:42,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 02:04:42,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2022-12-13 02:04:42,125 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.42105263157894735 [2022-12-13 02:04:42,126 INFO L175 Difference]: Start difference. First operand has 43 places, 39 transitions, 100 flow. Second operand 4 states and 64 transitions. [2022-12-13 02:04:42,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 59 transitions, 268 flow [2022-12-13 02:04:42,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 59 transitions, 258 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-13 02:04:42,129 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 108 flow [2022-12-13 02:04:42,129 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2022-12-13 02:04:42,130 INFO L295 CegarLoopForPetriNet]: 49 programPoint places, -4 predicate places. [2022-12-13 02:04:42,130 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:04:42,130 INFO L89 Accepts]: Start accepts. Operand has 45 places, 40 transitions, 108 flow [2022-12-13 02:04:42,132 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:04:42,132 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:04:42,132 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 40 transitions, 108 flow [2022-12-13 02:04:42,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 40 transitions, 108 flow [2022-12-13 02:04:42,138 INFO L130 PetriNetUnfolder]: 5/40 cut-off events. [2022-12-13 02:04:42,138 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 02:04:42,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 40 events. 5/40 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 42. Up to 4 conditions per place. [2022-12-13 02:04:42,139 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 40 transitions, 108 flow [2022-12-13 02:04:42,139 INFO L226 LiptonReduction]: Number of co-enabled transitions 526 [2022-12-13 02:04:42,150 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 02:04:42,152 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 22 [2022-12-13 02:04:42,152 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 108 flow [2022-12-13 02:04:42,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 02:04:42,152 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:04:42,152 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:04:42,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 02:04:42,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 02:04:42,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:04:42,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1636553750, now seen corresponding path program 1 times [2022-12-13 02:04:42,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:04:42,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945967458] [2022-12-13 02:04:42,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:04:42,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:04:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:04:42,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 02:04:42,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:04:42,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945967458] [2022-12-13 02:04:42,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945967458] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 02:04:42,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 02:04:42,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 02:04:42,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912412353] [2022-12-13 02:04:42,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 02:04:42,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 02:04:42,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:04:42,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 02:04:42,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 02:04:42,261 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 38 [2022-12-13 02:04:42,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 02:04:42,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:04:42,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 38 [2022-12-13 02:04:42,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:04:43,276 INFO L130 PetriNetUnfolder]: 9317/11685 cut-off events. [2022-12-13 02:04:43,276 INFO L131 PetriNetUnfolder]: For 2916/2916 co-relation queries the response was YES. [2022-12-13 02:04:43,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27111 conditions, 11685 events. 9317/11685 cut-off events. For 2916/2916 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 47339 event pairs, 4111 based on Foata normal form. 0/8912 useless extension candidates. Maximal degree in co-relation 12566. Up to 8724 conditions per place. [2022-12-13 02:04:43,326 INFO L137 encePairwiseOnDemand]: 34/38 looper letters, 59 selfloop transitions, 3 changer transitions 0/63 dead transitions. [2022-12-13 02:04:43,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 63 transitions, 298 flow [2022-12-13 02:04:43,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 02:04:43,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 02:04:43,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 63 transitions. [2022-12-13 02:04:43,328 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4144736842105263 [2022-12-13 02:04:43,328 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 108 flow. Second operand 4 states and 63 transitions. [2022-12-13 02:04:43,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 63 transitions, 298 flow [2022-12-13 02:04:43,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 63 transitions, 288 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-13 02:04:43,332 INFO L231 Difference]: Finished difference. Result has 47 places, 41 transitions, 116 flow [2022-12-13 02:04:43,332 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=47, PETRI_TRANSITIONS=41} [2022-12-13 02:04:43,332 INFO L295 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2022-12-13 02:04:43,333 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:04:43,333 INFO L89 Accepts]: Start accepts. Operand has 47 places, 41 transitions, 116 flow [2022-12-13 02:04:43,334 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:04:43,334 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:04:43,334 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 41 transitions, 116 flow [2022-12-13 02:04:43,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 41 transitions, 116 flow [2022-12-13 02:04:43,340 INFO L130 PetriNetUnfolder]: 5/41 cut-off events. [2022-12-13 02:04:43,340 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 02:04:43,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 41 events. 5/41 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 44. Up to 4 conditions per place. [2022-12-13 02:04:43,341 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 41 transitions, 116 flow [2022-12-13 02:04:43,341 INFO L226 LiptonReduction]: Number of co-enabled transitions 572 [2022-12-13 02:04:43,432 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 02:04:43,433 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 100 [2022-12-13 02:04:43,434 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 40 transitions, 112 flow [2022-12-13 02:04:43,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 02:04:43,434 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:04:43,434 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:04:43,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 02:04:43,434 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 02:04:43,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:04:43,435 INFO L85 PathProgramCache]: Analyzing trace with hash 662854048, now seen corresponding path program 1 times [2022-12-13 02:04:43,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:04:43,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329381064] [2022-12-13 02:04:43,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:04:43,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:04:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:04:43,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 02:04:43,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:04:43,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329381064] [2022-12-13 02:04:43,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329381064] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 02:04:43,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 02:04:43,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 02:04:43,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202739438] [2022-12-13 02:04:43,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 02:04:43,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 02:04:43,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:04:43,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 02:04:43,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 02:04:43,522 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 38 [2022-12-13 02:04:43,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 40 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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 02:04:43,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:04:43,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 38 [2022-12-13 02:04:43,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:04:44,401 INFO L130 PetriNetUnfolder]: 8748/11070 cut-off events. [2022-12-13 02:04:44,401 INFO L131 PetriNetUnfolder]: For 4629/4629 co-relation queries the response was YES. [2022-12-13 02:04:44,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28087 conditions, 11070 events. 8748/11070 cut-off events. For 4629/4629 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 41064 event pairs, 4945 based on Foata normal form. 0/8947 useless extension candidates. Maximal degree in co-relation 9637. Up to 8498 conditions per place. [2022-12-13 02:04:44,452 INFO L137 encePairwiseOnDemand]: 34/38 looper letters, 61 selfloop transitions, 3 changer transitions 0/64 dead transitions. [2022-12-13 02:04:44,452 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 64 transitions, 312 flow [2022-12-13 02:04:44,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 02:04:44,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 02:04:44,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2022-12-13 02:04:44,454 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.40131578947368424 [2022-12-13 02:04:44,454 INFO L175 Difference]: Start difference. First operand has 46 places, 40 transitions, 112 flow. Second operand 4 states and 61 transitions. [2022-12-13 02:04:44,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 64 transitions, 312 flow [2022-12-13 02:04:44,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 64 transitions, 294 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-12-13 02:04:44,465 INFO L231 Difference]: Finished difference. Result has 47 places, 41 transitions, 116 flow [2022-12-13 02:04:44,465 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=47, PETRI_TRANSITIONS=41} [2022-12-13 02:04:44,466 INFO L295 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2022-12-13 02:04:44,466 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:04:44,466 INFO L89 Accepts]: Start accepts. Operand has 47 places, 41 transitions, 116 flow [2022-12-13 02:04:44,468 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:04:44,468 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:04:44,468 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 41 transitions, 116 flow [2022-12-13 02:04:44,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 41 transitions, 116 flow [2022-12-13 02:04:44,475 INFO L130 PetriNetUnfolder]: 5/41 cut-off events. [2022-12-13 02:04:44,475 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 02:04:44,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 41 events. 5/41 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 45. Up to 4 conditions per place. [2022-12-13 02:04:44,476 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 41 transitions, 116 flow [2022-12-13 02:04:44,476 INFO L226 LiptonReduction]: Number of co-enabled transitions 572 [2022-12-13 02:04:44,481 ERROR L806 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-13 02:04:44,483 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 02:04:44,484 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 18 [2022-12-13 02:04:44,484 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 111 flow [2022-12-13 02:04:44,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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 02:04:44,484 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:04:44,484 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:04:44,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 02:04:44,485 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 02:04:44,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:04:44,485 INFO L85 PathProgramCache]: Analyzing trace with hash -926088980, now seen corresponding path program 1 times [2022-12-13 02:04:44,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:04:44,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437727019] [2022-12-13 02:04:44,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:04:44,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:04:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:04:44,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 02:04:44,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:04:44,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437727019] [2022-12-13 02:04:44,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437727019] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 02:04:44,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 02:04:44,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 02:04:44,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143183356] [2022-12-13 02:04:44,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 02:04:44,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 02:04:44,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:04:44,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 02:04:44,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 02:04:44,639 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 38 [2022-12-13 02:04:44,639 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 02:04:44,639 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:04:44,639 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 38 [2022-12-13 02:04:44,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:04:44,922 INFO L130 PetriNetUnfolder]: 2082/2896 cut-off events. [2022-12-13 02:04:44,923 INFO L131 PetriNetUnfolder]: For 600/976 co-relation queries the response was YES. [2022-12-13 02:04:44,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6802 conditions, 2896 events. 2082/2896 cut-off events. For 600/976 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 10646 event pairs, 1583 based on Foata normal form. 376/2773 useless extension candidates. Maximal degree in co-relation 6646. Up to 2821 conditions per place. [2022-12-13 02:04:44,929 INFO L137 encePairwiseOnDemand]: 35/38 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2022-12-13 02:04:44,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 35 transitions, 163 flow [2022-12-13 02:04:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 02:04:44,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 02:04:44,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2022-12-13 02:04:44,932 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3157894736842105 [2022-12-13 02:04:44,932 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 111 flow. Second operand 3 states and 36 transitions. [2022-12-13 02:04:44,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 35 transitions, 163 flow [2022-12-13 02:04:44,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 35 transitions, 159 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 02:04:44,938 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2022-12-13 02:04:44,938 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2022-12-13 02:04:44,940 INFO L295 CegarLoopForPetriNet]: 49 programPoint places, -8 predicate places. [2022-12-13 02:04:44,940 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:04:44,940 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 0 transitions, 0 flow [2022-12-13 02:04:44,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 02:04:44,941 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 02:04:44,941 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 02:04:44,941 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 02:04:44,941 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 02:04:44,942 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 02:04:44,942 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 02:04:44,943 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 3 [2022-12-13 02:04:44,943 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 02:04:44,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 02:04:44,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-13 02:04:44,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2022-12-13 02:04:44,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-13 02:04:44,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-13 02:04:44,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-12-13 02:04:44,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2022-12-13 02:04:44,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 02:04:44,954 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-13 02:04:44,958 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 02:04:44,958 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 02:04:44,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:04:44 BasicIcfg [2022-12-13 02:04:44,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 02:04:44,963 INFO L158 Benchmark]: Toolchain (without parser) took 16679.68ms. Allocated memory was 179.3MB in the beginning and 844.1MB in the end (delta: 664.8MB). Free memory was 155.2MB in the beginning and 531.4MB in the end (delta: -376.2MB). Peak memory consumption was 289.3MB. Max. memory is 8.0GB. [2022-12-13 02:04:44,963 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 155.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 02:04:44,963 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.36ms. Allocated memory is still 179.3MB. Free memory was 154.9MB in the beginning and 140.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-13 02:04:44,964 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.22ms. Allocated memory is still 179.3MB. Free memory was 140.7MB in the beginning and 138.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 02:04:44,965 INFO L158 Benchmark]: Boogie Preprocessor took 47.00ms. Allocated memory is still 179.3MB. Free memory was 138.6MB in the beginning and 136.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 02:04:44,965 INFO L158 Benchmark]: RCFGBuilder took 674.31ms. Allocated memory is still 179.3MB. Free memory was 136.5MB in the beginning and 109.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-12-13 02:04:44,966 INFO L158 Benchmark]: TraceAbstraction took 15580.25ms. Allocated memory was 179.3MB in the beginning and 844.1MB in the end (delta: 664.8MB). Free memory was 108.2MB in the beginning and 531.4MB in the end (delta: -423.2MB). Peak memory consumption was 242.1MB. Max. memory is 8.0GB. [2022-12-13 02:04:44,967 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 155.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 315.36ms. Allocated memory is still 179.3MB. Free memory was 154.9MB in the beginning and 140.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.22ms. Allocated memory is still 179.3MB. Free memory was 140.7MB in the beginning and 138.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.00ms. Allocated memory is still 179.3MB. Free memory was 138.6MB in the beginning and 136.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 674.31ms. Allocated memory is still 179.3MB. Free memory was 136.5MB in the beginning and 109.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * TraceAbstraction took 15580.25ms. Allocated memory was 179.3MB in the beginning and 844.1MB in the end (delta: 664.8MB). Free memory was 108.2MB in the beginning and 531.4MB in the end (delta: -423.2MB). Peak memory consumption was 242.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.9s, 166 PlacesBefore, 49 PlacesAfterwards, 164 TransitionsBefore, 38 TransitionsAfterwards, 3806 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 67 TrivialYvCompositions, 50 ConcurrentYvCompositions, 9 ChoiceCompositions, 126 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2032, independent: 2009, independent conditional: 2009, independent unconditional: 0, dependent: 23, dependent conditional: 23, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2032, independent: 2009, independent conditional: 0, independent unconditional: 2009, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2032, independent: 2009, independent conditional: 0, independent unconditional: 2009, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2032, independent: 2009, independent conditional: 0, independent unconditional: 2009, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1969, independent: 1953, independent conditional: 0, independent unconditional: 1953, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1969, independent: 1953, independent conditional: 0, independent unconditional: 1953, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2032, independent: 56, independent conditional: 0, independent unconditional: 56, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 1969, unknown conditional: 0, unknown unconditional: 1969] , Statistics on independence cache: Total cache size (in pairs): 3077, Positive cache size: 3061, Positive conditional cache size: 0, Positive unconditional cache size: 3061, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, 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, 43 PlacesBefore, 43 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 484 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 87, independent: 79, independent conditional: 79, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 87, independent: 79, independent conditional: 58, independent unconditional: 21, dependent: 8, dependent conditional: 5, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 87, independent: 79, independent conditional: 27, independent unconditional: 52, dependent: 8, dependent conditional: 2, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 87, independent: 79, independent conditional: 27, independent unconditional: 52, dependent: 8, dependent conditional: 2, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 67, independent: 60, independent conditional: 20, independent unconditional: 40, dependent: 7, dependent conditional: 2, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 67, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 2, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 18, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 18, dependent conditional: 11, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 87, independent: 19, independent conditional: 7, independent unconditional: 12, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 67, unknown conditional: 22, unknown unconditional: 45] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 60, Positive conditional cache size: 20, Positive unconditional cache size: 40, Negative cache size: 7, Negative conditional cache size: 2, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 34, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 45 PlacesBefore, 45 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 526 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 109, independent: 99, independent conditional: 99, independent unconditional: 0, dependent: 10, dependent conditional: 10, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 109, independent: 99, independent conditional: 67, independent unconditional: 32, dependent: 10, dependent conditional: 6, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 109, independent: 99, independent conditional: 28, independent unconditional: 71, dependent: 10, dependent conditional: 3, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 109, independent: 99, independent conditional: 28, independent unconditional: 71, dependent: 10, dependent conditional: 3, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 34, independent: 31, independent conditional: 8, independent unconditional: 23, dependent: 3, dependent conditional: 2, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 34, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 2, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 10, dependent conditional: 8, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 109, independent: 68, independent conditional: 20, independent unconditional: 48, dependent: 7, dependent conditional: 1, dependent unconditional: 6, unknown: 34, unknown conditional: 10, unknown unconditional: 24] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 91, Positive conditional cache size: 28, Positive unconditional cache size: 63, Negative cache size: 10, Negative conditional cache size: 4, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 42, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 47 PlacesBefore, 46 PlacesAfterwards, 41 TransitionsBefore, 40 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 203, independent: 187, independent conditional: 187, 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: 203, independent: 187, independent conditional: 49, independent unconditional: 138, dependent: 16, dependent conditional: 6, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 205, independent: 187, independent conditional: 34, independent unconditional: 153, dependent: 18, dependent conditional: 8, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 205, independent: 187, independent conditional: 34, independent unconditional: 153, dependent: 18, dependent conditional: 8, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 33, independent: 30, independent conditional: 8, independent unconditional: 22, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 33, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 12, dependent conditional: 12, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 205, independent: 157, independent conditional: 26, independent unconditional: 131, dependent: 15, dependent conditional: 5, dependent unconditional: 10, unknown: 33, unknown conditional: 11, unknown unconditional: 22] , Statistics on independence cache: Total cache size (in pairs): 137, Positive cache size: 124, Positive conditional cache size: 36, Positive unconditional cache size: 88, Negative cache size: 13, Negative conditional cache size: 7, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 15, Maximal queried relation: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 47 PlacesBefore, 47 PlacesAfterwards, 41 TransitionsBefore, 40 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 206, independent: 189, independent conditional: 189, independent unconditional: 0, dependent: 17, dependent conditional: 17, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 206, independent: 189, independent conditional: 51, independent unconditional: 138, dependent: 17, dependent conditional: 5, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 206, independent: 189, independent conditional: 29, independent unconditional: 160, dependent: 17, dependent conditional: 5, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 206, independent: 189, independent conditional: 29, independent unconditional: 160, dependent: 17, dependent conditional: 5, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 21, independent: 20, independent conditional: 7, independent unconditional: 13, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 21, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 206, independent: 169, independent conditional: 22, independent unconditional: 147, dependent: 16, dependent conditional: 4, dependent unconditional: 12, unknown: 21, unknown conditional: 8, unknown unconditional: 13] , Statistics on independence cache: Total cache size (in pairs): 158, Positive cache size: 144, Positive conditional cache size: 43, Positive unconditional cache size: 101, Negative cache size: 14, Negative conditional cache size: 8, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 22, Maximal queried relation: 0 - 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): 158, Positive cache size: 144, Positive conditional cache size: 43, Positive unconditional cache size: 101, Negative cache size: 14, Negative conditional cache size: 8, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 134]: 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 11 procedures, 219 locations, 6 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: 15.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 182 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 182 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 424 IncrementalHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 2 mSDtfsCounter, 424 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=3, InterpolantAutomatonStates: 19, 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, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 294 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 8/8 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 02:04:44,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...