/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-max-array-hom.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 21:48:56,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 21:48:56,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 21:48:56,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 21:48:56,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 21:48:56,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 21:48:56,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 21:48:56,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 21:48:56,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 21:48:56,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 21:48:56,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 21:48:56,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 21:48:56,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 21:48:56,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 21:48:56,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 21:48:56,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 21:48:56,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 21:48:56,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 21:48:56,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 21:48:56,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 21:48:56,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 21:48:56,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 21:48:56,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 21:48:56,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 21:48:56,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 21:48:56,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 21:48:56,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 21:48:56,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 21:48:56,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 21:48:56,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 21:48:56,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 21:48:56,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 21:48:56,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 21:48:56,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 21:48:56,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 21:48:56,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 21:48:56,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 21:48:56,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 21:48:56,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 21:48:56,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 21:48:56,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 21:48:56,811 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-SemanticLbe.epf [2022-12-05 21:48:56,836 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 21:48:56,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 21:48:56,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 21:48:56,838 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 21:48:56,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 21:48:56,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 21:48:56,839 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 21:48:56,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 21:48:56,839 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 21:48:56,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 21:48:56,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 21:48:56,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 21:48:56,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 21:48:56,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 21:48:56,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 21:48:56,840 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 21:48:56,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 21:48:56,841 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 21:48:56,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 21:48:56,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 21:48:56,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 21:48:56,845 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 21:48:56,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 21:48:56,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 21:48:56,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 21:48:56,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 21:48:56,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 21:48:56,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 21:48:56,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 21:48:56,847 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 21:48:56,847 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 21:48:57,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 21:48:57,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 21:48:57,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 21:48:57,129 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 21:48:57,129 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 21:48:57,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-max-array-hom.wvr.c [2022-12-05 21:48:58,064 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 21:48:58,259 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 21:48:58,259 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-max-array-hom.wvr.c [2022-12-05 21:48:58,268 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a09fc3d3e/92c4247f260a43cfa51a705b2c56cf2a/FLAG963001c53 [2022-12-05 21:48:58,279 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a09fc3d3e/92c4247f260a43cfa51a705b2c56cf2a [2022-12-05 21:48:58,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 21:48:58,282 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 21:48:58,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 21:48:58,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 21:48:58,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 21:48:58,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:48:58" (1/1) ... [2022-12-05 21:48:58,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50b01bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:58, skipping insertion in model container [2022-12-05 21:48:58,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:48:58" (1/1) ... [2022-12-05 21:48:58,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 21:48:58,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 21:48:58,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:48:58,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:48:58,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:48:58,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:48:58,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:48:58,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:48:58,464 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-more-max-array-hom.wvr.c[2586,2599] [2022-12-05 21:48:58,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 21:48:58,477 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 21:48:58,491 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:48:58,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:48:58,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:48:58,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:48:58,494 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:48:58,494 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:48:58,497 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-max-array-hom.wvr.c[2586,2599] [2022-12-05 21:48:58,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 21:48:58,513 INFO L208 MainTranslator]: Completed translation [2022-12-05 21:48:58,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:58 WrapperNode [2022-12-05 21:48:58,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 21:48:58,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 21:48:58,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 21:48:58,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 21:48:58,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:58" (1/1) ... [2022-12-05 21:48:58,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:58" (1/1) ... [2022-12-05 21:48:58,560 INFO L138 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 102 [2022-12-05 21:48:58,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 21:48:58,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 21:48:58,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 21:48:58,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 21:48:58,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:58" (1/1) ... [2022-12-05 21:48:58,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:58" (1/1) ... [2022-12-05 21:48:58,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:58" (1/1) ... [2022-12-05 21:48:58,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:58" (1/1) ... [2022-12-05 21:48:58,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:58" (1/1) ... [2022-12-05 21:48:58,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:58" (1/1) ... [2022-12-05 21:48:58,582 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:58" (1/1) ... [2022-12-05 21:48:58,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:58" (1/1) ... [2022-12-05 21:48:58,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 21:48:58,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 21:48:58,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 21:48:58,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 21:48:58,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:58" (1/1) ... [2022-12-05 21:48:58,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 21:48:58,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 21:48:58,618 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) [2022-12-05 21:48:58,620 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 [2022-12-05 21:48:58,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 21:48:58,665 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 21:48:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 21:48:58,666 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-05 21:48:58,666 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-05 21:48:58,666 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-05 21:48:58,666 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-05 21:48:58,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 21:48:58,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 21:48:58,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 21:48:58,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 21:48:58,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 21:48:58,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 21:48:58,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 21:48:58,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 21:48:58,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 21:48:58,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 21:48:58,668 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 21:48:58,761 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 21:48:58,762 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 21:48:59,037 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 21:48:59,098 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 21:48:59,098 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-05 21:48:59,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:48:59 BoogieIcfgContainer [2022-12-05 21:48:59,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 21:48:59,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 21:48:59,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 21:48:59,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 21:48:59,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:48:58" (1/3) ... [2022-12-05 21:48:59,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bcf3d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:48:59, skipping insertion in model container [2022-12-05 21:48:59,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:58" (2/3) ... [2022-12-05 21:48:59,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bcf3d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:48:59, skipping insertion in model container [2022-12-05 21:48:59,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:48:59" (3/3) ... [2022-12-05 21:48:59,107 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-max-array-hom.wvr.c [2022-12-05 21:48:59,119 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 21:48:59,120 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 21:48:59,120 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 21:48:59,198 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-05 21:48:59,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 142 transitions, 308 flow [2022-12-05 21:48:59,303 INFO L130 PetriNetUnfolder]: 12/139 cut-off events. [2022-12-05 21:48:59,303 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 21:48:59,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 12/139 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 86 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2022-12-05 21:48:59,312 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 142 transitions, 308 flow [2022-12-05 21:48:59,316 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 129 transitions, 276 flow [2022-12-05 21:48:59,324 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 21:48:59,345 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 129 transitions, 276 flow [2022-12-05 21:48:59,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 129 transitions, 276 flow [2022-12-05 21:48:59,389 INFO L130 PetriNetUnfolder]: 12/129 cut-off events. [2022-12-05 21:48:59,389 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 21:48:59,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 129 events. 12/129 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 87 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2022-12-05 21:48:59,394 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 129 transitions, 276 flow [2022-12-05 21:48:59,394 INFO L188 LiptonReduction]: Number of co-enabled transitions 1320 [2022-12-05 21:49:03,617 INFO L203 LiptonReduction]: Total number of compositions: 105 [2022-12-05 21:49:03,628 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 21:49:03,632 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@35407af3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 21:49:03,632 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 21:49:03,636 INFO L130 PetriNetUnfolder]: 4/23 cut-off events. [2022-12-05 21:49:03,636 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 21:49:03,636 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 21:49:03,637 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 21:49:03,637 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 21:49:03,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 21:49:03,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1106873309, now seen corresponding path program 1 times [2022-12-05 21:49:03,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 21:49:03,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131278587] [2022-12-05 21:49:03,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 21:49:03,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 21:49:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 21:49:03,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 21:49:03,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 21:49:03,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131278587] [2022-12-05 21:49:03,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131278587] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 21:49:03,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 21:49:03,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 21:49:03,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813662194] [2022-12-05 21:49:03,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 21:49:03,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 21:49:03,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 21:49:04,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 21:49:04,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 21:49:04,011 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 24 [2022-12-05 21:49:04,012 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2022-12-05 21:49:04,012 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 21:49:04,012 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 24 [2022-12-05 21:49:04,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 21:49:04,100 INFO L130 PetriNetUnfolder]: 269/376 cut-off events. [2022-12-05 21:49:04,100 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-12-05 21:49:04,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 793 conditions, 376 events. 269/376 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1110 event pairs, 133 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 615. Up to 373 conditions per place. [2022-12-05 21:49:04,104 INFO L137 encePairwiseOnDemand]: 21/24 looper letters, 21 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2022-12-05 21:49:04,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 25 transitions, 114 flow [2022-12-05 21:49:04,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 21:49:04,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 21:49:04,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2022-12-05 21:49:04,112 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2022-12-05 21:49:04,113 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 66 flow. Second operand 3 states and 30 transitions. [2022-12-05 21:49:04,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 25 transitions, 114 flow [2022-12-05 21:49:04,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 25 transitions, 102 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-05 21:49:04,117 INFO L231 Difference]: Finished difference. Result has 27 places, 25 transitions, 66 flow [2022-12-05 21:49:04,118 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=27, PETRI_TRANSITIONS=25} [2022-12-05 21:49:04,121 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, -3 predicate places. [2022-12-05 21:49:04,121 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 25 transitions, 66 flow [2022-12-05 21:49:04,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2022-12-05 21:49:04,121 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 21:49:04,122 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 21:49:04,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 21:49:04,122 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 21:49:04,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 21:49:04,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1575989531, now seen corresponding path program 1 times [2022-12-05 21:49:04,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 21:49:04,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051839472] [2022-12-05 21:49:04,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 21:49:04,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 21:49:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 21:49:04,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 21:49:04,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 21:49:04,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051839472] [2022-12-05 21:49:04,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051839472] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 21:49:04,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232365441] [2022-12-05 21:49:04,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 21:49:04,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 21:49:04,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 21:49:04,286 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 21:49:04,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-05 21:49:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 21:49:04,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-05 21:49:04,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 21:49:04,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 21:49:04,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 21:49:04,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 21:49:04,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232365441] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-05 21:49:04,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-05 21:49:04,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2022-12-05 21:49:04,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835492096] [2022-12-05 21:49:04,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 21:49:04,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 21:49:04,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 21:49:04,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 21:49:04,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-05 21:49:04,460 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 24 [2022-12-05 21:49:04,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 25 transitions, 66 flow. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2022-12-05 21:49:04,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 21:49:04,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 24 [2022-12-05 21:49:04,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 21:49:04,526 INFO L130 PetriNetUnfolder]: 309/442 cut-off events. [2022-12-05 21:49:04,526 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 21:49:04,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 442 events. 309/442 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1403 event pairs, 49 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 889. Up to 335 conditions per place. [2022-12-05 21:49:04,529 INFO L137 encePairwiseOnDemand]: 19/24 looper letters, 29 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2022-12-05 21:49:04,529 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 35 transitions, 154 flow [2022-12-05 21:49:04,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 21:49:04,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 21:49:04,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 44 transitions. [2022-12-05 21:49:04,544 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.36666666666666664 [2022-12-05 21:49:04,545 INFO L175 Difference]: Start difference. First operand has 27 places, 25 transitions, 66 flow. Second operand 5 states and 44 transitions. [2022-12-05 21:49:04,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 35 transitions, 154 flow [2022-12-05 21:49:04,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 150 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-05 21:49:04,546 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 78 flow [2022-12-05 21:49:04,546 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=78, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2022-12-05 21:49:04,546 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2022-12-05 21:49:04,546 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 78 flow [2022-12-05 21:49:04,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2022-12-05 21:49:04,547 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 21:49:04,547 INFO L213 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] [2022-12-05 21:49:04,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-05 21:49:04,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 21:49:04,752 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 21:49:04,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 21:49:04,753 INFO L85 PathProgramCache]: Analyzing trace with hash 17282664, now seen corresponding path program 1 times [2022-12-05 21:49:04,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 21:49:04,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060979669] [2022-12-05 21:49:04,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 21:49:04,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 21:49:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 21:49:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 21:49:04,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 21:49:04,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060979669] [2022-12-05 21:49:04,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060979669] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 21:49:04,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419196729] [2022-12-05 21:49:04,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 21:49:04,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 21:49:04,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 21:49:04,916 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 21:49:04,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-05 21:49:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 21:49:04,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-05 21:49:04,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 21:49:05,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 21:49:05,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 21:49:05,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 21:49:05,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419196729] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-05 21:49:05,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-05 21:49:05,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2022-12-05 21:49:05,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783708954] [2022-12-05 21:49:05,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 21:49:05,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 21:49:05,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 21:49:05,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 21:49:05,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-12-05 21:49:05,084 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 24 [2022-12-05 21:49:05,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 78 flow. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 21:49:05,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 21:49:05,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 24 [2022-12-05 21:49:05,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 21:49:05,247 INFO L130 PetriNetUnfolder]: 280/414 cut-off events. [2022-12-05 21:49:05,247 INFO L131 PetriNetUnfolder]: For 75/106 co-relation queries the response was YES. [2022-12-05 21:49:05,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 979 conditions, 414 events. 280/414 cut-off events. For 75/106 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1270 event pairs, 28 based on Foata normal form. 31/348 useless extension candidates. Maximal degree in co-relation 961. Up to 242 conditions per place. [2022-12-05 21:49:05,249 INFO L137 encePairwiseOnDemand]: 17/24 looper letters, 46 selfloop transitions, 9 changer transitions 0/56 dead transitions. [2022-12-05 21:49:05,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 56 transitions, 274 flow [2022-12-05 21:49:05,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 21:49:05,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 21:49:05,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 61 transitions. [2022-12-05 21:49:05,253 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3177083333333333 [2022-12-05 21:49:05,253 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 78 flow. Second operand 8 states and 61 transitions. [2022-12-05 21:49:05,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 56 transitions, 274 flow [2022-12-05 21:49:05,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 56 transitions, 257 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-05 21:49:05,254 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 110 flow [2022-12-05 21:49:05,254 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=110, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2022-12-05 21:49:05,255 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 7 predicate places. [2022-12-05 21:49:05,255 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 110 flow [2022-12-05 21:49:05,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 21:49:05,255 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 21:49:05,255 INFO L213 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] [2022-12-05 21:49:05,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-05 21:49:05,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-05 21:49:05,462 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 21:49:05,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 21:49:05,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1266595511, now seen corresponding path program 1 times [2022-12-05 21:49:05,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 21:49:05,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860599915] [2022-12-05 21:49:05,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 21:49:05,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 21:49:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 21:49:06,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 21:49:06,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 21:49:06,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860599915] [2022-12-05 21:49:06,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860599915] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 21:49:06,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169775838] [2022-12-05 21:49:06,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 21:49:06,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 21:49:06,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 21:49:06,543 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 21:49:06,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-05 21:49:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 21:49:06,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-05 21:49:06,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 21:49:06,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-05 21:49:06,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-05 21:49:06,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 21:49:06,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-12-05 21:49:07,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 21:49:07,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-12-05 21:49:07,186 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-05 21:49:07,188 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 21:49:07,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 39 [2022-12-05 21:49:07,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 21:49:07,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 21:49:45,120 WARN L233 SmtUtils]: Spent 34.40s on a formula simplification that was a NOOP. DAG size: 79 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-05 21:49:45,182 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 21:49:45,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 92 [2022-12-05 21:49:45,227 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 21:49:45,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 5369 treesize of output 4863 [2022-12-05 21:49:45,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4833 treesize of output 4065 [2022-12-05 21:49:45,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4065 treesize of output 3681 [2022-12-05 21:49:45,315 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 21:49:45,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3701 treesize of output 3389 Received shutdown request... [2022-12-05 22:03:12,202 WARN L249 SmtUtils]: Removed 1 from assertion stack [2022-12-05 22:03:12,207 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-05 22:03:12,208 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-05 22:03:12,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-05 22:03:12,242 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-05 22:03:12,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:03:12,424 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. [2022-12-05 22:03:12,426 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-05 22:03:12,426 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-05 22:03:12,427 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-05 22:03:12,427 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-05 22:03:12,429 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 22:03:12,430 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 22:03:12,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 10:03:12 BasicIcfg [2022-12-05 22:03:12,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 22:03:12,435 INFO L158 Benchmark]: Toolchain (without parser) took 854152.89ms. Allocated memory was 210.8MB in the beginning and 807.4MB in the end (delta: 596.6MB). Free memory was 186.3MB in the beginning and 663.7MB in the end (delta: -477.3MB). Peak memory consumption was 502.2MB. Max. memory is 8.0GB. [2022-12-05 22:03:12,435 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 210.8MB. Free memory was 187.1MB in the beginning and 187.1MB in the end (delta: 63.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 22:03:12,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.79ms. Allocated memory is still 210.8MB. Free memory was 186.3MB in the beginning and 174.3MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-05 22:03:12,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.06ms. Allocated memory is still 210.8MB. Free memory was 174.3MB in the beginning and 172.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 22:03:12,436 INFO L158 Benchmark]: Boogie Preprocessor took 21.66ms. Allocated memory is still 210.8MB. Free memory was 172.2MB in the beginning and 170.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 22:03:12,436 INFO L158 Benchmark]: RCFGBuilder took 516.45ms. Allocated memory is still 210.8MB. Free memory was 170.6MB in the beginning and 150.2MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-05 22:03:12,436 INFO L158 Benchmark]: TraceAbstraction took 853332.13ms. Allocated memory was 210.8MB in the beginning and 807.4MB in the end (delta: 596.6MB). Free memory was 149.6MB in the beginning and 663.7MB in the end (delta: -514.0MB). Peak memory consumption was 465.5MB. Max. memory is 8.0GB. [2022-12-05 22:03:12,438 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 210.8MB. Free memory was 187.1MB in the beginning and 187.1MB in the end (delta: 63.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 231.79ms. Allocated memory is still 210.8MB. Free memory was 186.3MB in the beginning and 174.3MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.06ms. Allocated memory is still 210.8MB. Free memory was 174.3MB in the beginning and 172.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.66ms. Allocated memory is still 210.8MB. Free memory was 172.2MB in the beginning and 170.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 516.45ms. Allocated memory is still 210.8MB. Free memory was 170.6MB in the beginning and 150.2MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 853332.13ms. Allocated memory was 210.8MB in the beginning and 807.4MB in the end (delta: 596.6MB). Free memory was 149.6MB in the beginning and 663.7MB in the end (delta: -514.0MB). Peak memory consumption was 465.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 127 PlacesBefore, 30 PlacesAfterwards, 129 TransitionsBefore, 24 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 67 TrivialYvCompositions, 30 ConcurrentYvCompositions, 8 ChoiceCompositions, 105 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 674, independent: 670, independent conditional: 670, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 674, independent: 670, independent conditional: 0, independent unconditional: 670, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 674, independent: 670, independent conditional: 0, independent unconditional: 670, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 674, independent: 670, independent conditional: 0, independent unconditional: 670, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 674, independent: 670, independent conditional: 0, independent unconditional: 670, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 674, independent: 670, independent conditional: 0, independent unconditional: 670, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 674, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 674, unknown conditional: 0, unknown unconditional: 674] , Statistics on independence cache: Total cache size (in pairs): 1066, Positive cache size: 1062, Positive conditional cache size: 0, Positive unconditional cache size: 1062, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 161 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 853.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 141 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 218 IncrementalHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 4 mSDtfsCounter, 218 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 72 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 320 SizeOfPredicates, 11 NumberOfNonLiveVariables, 428 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 5/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown