/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-more-nonblocking-counter-alt2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 02:09:52,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 02:09:52,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 02:09:52,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 02:09:52,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 02:09:52,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 02:09:52,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 02:09:52,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 02:09:52,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 02:09:52,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 02:09:52,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 02:09:52,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 02:09:52,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 02:09:52,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 02:09:52,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 02:09:52,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 02:09:52,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 02:09:52,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 02:09:52,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 02:09:52,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 02:09:52,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 02:09:52,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 02:09:52,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 02:09:52,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 02:09:52,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 02:09:52,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 02:09:52,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 02:09:52,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 02:09:52,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 02:09:52,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 02:09:52,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 02:09:52,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 02:09:52,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 02:09:52,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 02:09:52,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 02:09:52,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 02:09:52,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 02:09:52,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 02:09:52,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 02:09:52,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 02:09:52,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 02:09:52,579 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 02:09:52,610 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 02:09:52,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 02:09:52,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 02:09:52,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 02:09:52,613 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 02:09:52,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 02:09:52,614 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 02:09:52,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 02:09:52,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 02:09:52,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 02:09:52,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 02:09:52,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 02:09:52,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 02:09:52,615 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 02:09:52,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 02:09:52,615 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 02:09:52,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 02:09:52,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 02:09:52,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 02:09:52,616 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 02:09:52,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 02:09:52,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 02:09:52,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 02:09:52,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 02:09:52,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 02:09:52,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 02:09:52,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 02:09:52,617 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 02:09:52,617 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 02:09:52,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 02:09:52,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 02:09:52,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 02:09:52,953 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 02:09:52,953 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 02:09:52,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2022-12-13 02:09:54,164 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 02:09:54,385 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 02:09:54,386 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2022-12-13 02:09:54,393 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f784243ac/def5f88f9a834b638faf92fcabebd165/FLAG094c47a4e [2022-12-13 02:09:54,414 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f784243ac/def5f88f9a834b638faf92fcabebd165 [2022-12-13 02:09:54,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 02:09:54,417 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 02:09:54,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 02:09:54,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 02:09:54,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 02:09:54,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:09:54" (1/1) ... [2022-12-13 02:09:54,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e8586b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:09:54, skipping insertion in model container [2022-12-13 02:09:54,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:09:54" (1/1) ... [2022-12-13 02:09:54,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 02:09:54,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 02:09:54,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:09:54,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:09:54,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:09:54,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:09:54,614 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-nonblocking-counter-alt2.wvr.c[2147,2160] [2022-12-13 02:09:54,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 02:09:54,627 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 02:09:54,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:09:54,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:09:54,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:09:54,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:09:54,654 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-nonblocking-counter-alt2.wvr.c[2147,2160] [2022-12-13 02:09:54,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 02:09:54,670 INFO L208 MainTranslator]: Completed translation [2022-12-13 02:09:54,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:09:54 WrapperNode [2022-12-13 02:09:54,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 02:09:54,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 02:09:54,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 02:09:54,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 02:09:54,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:09:54" (1/1) ... [2022-12-13 02:09:54,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:09:54" (1/1) ... [2022-12-13 02:09:54,706 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2022-12-13 02:09:54,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 02:09:54,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 02:09:54,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 02:09:54,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 02:09:54,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:09:54" (1/1) ... [2022-12-13 02:09:54,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:09:54" (1/1) ... [2022-12-13 02:09:54,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:09:54" (1/1) ... [2022-12-13 02:09:54,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:09:54" (1/1) ... [2022-12-13 02:09:54,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:09:54" (1/1) ... [2022-12-13 02:09:54,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:09:54" (1/1) ... [2022-12-13 02:09:54,736 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:09:54" (1/1) ... [2022-12-13 02:09:54,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:09:54" (1/1) ... [2022-12-13 02:09:54,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 02:09:54,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 02:09:54,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 02:09:54,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 02:09:54,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:09:54" (1/1) ... [2022-12-13 02:09:54,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 02:09:54,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 02:09:54,776 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 02:09:54,784 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 02:09:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 02:09:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 02:09:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 02:09:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 02:09:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 02:09:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 02:09:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 02:09:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 02:09:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 02:09:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 02:09:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 02:09:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 02:09:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 02:09:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 02:09:54,821 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 02:09:54,899 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 02:09:54,900 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 02:09:55,027 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 02:09:55,058 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 02:09:55,059 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 02:09:55,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:09:55 BoogieIcfgContainer [2022-12-13 02:09:55,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 02:09:55,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 02:09:55,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 02:09:55,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 02:09:55,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:09:54" (1/3) ... [2022-12-13 02:09:55,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6959a624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:09:55, skipping insertion in model container [2022-12-13 02:09:55,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:09:54" (2/3) ... [2022-12-13 02:09:55,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6959a624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:09:55, skipping insertion in model container [2022-12-13 02:09:55,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:09:55" (3/3) ... [2022-12-13 02:09:55,067 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-nonblocking-counter-alt2.wvr.c [2022-12-13 02:09:55,083 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 02:09:55,083 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 02:09:55,084 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 02:09:55,189 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 02:09:55,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 77 transitions, 170 flow [2022-12-13 02:09:55,286 INFO L130 PetriNetUnfolder]: 6/75 cut-off events. [2022-12-13 02:09:55,287 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 02:09:55,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 75 events. 6/75 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2022-12-13 02:09:55,291 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 77 transitions, 170 flow [2022-12-13 02:09:55,294 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 67 transitions, 146 flow [2022-12-13 02:09:55,296 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:09:55,310 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 67 transitions, 146 flow [2022-12-13 02:09:55,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 67 transitions, 146 flow [2022-12-13 02:09:55,332 INFO L130 PetriNetUnfolder]: 6/67 cut-off events. [2022-12-13 02:09:55,332 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 02:09:55,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 67 events. 6/67 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2022-12-13 02:09:55,335 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 67 transitions, 146 flow [2022-12-13 02:09:55,335 INFO L226 LiptonReduction]: Number of co-enabled transitions 404 [2022-12-13 02:09:57,512 INFO L241 LiptonReduction]: Total number of compositions: 52 [2022-12-13 02:09:57,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 02:09:57,531 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;@754e1646, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 02:09:57,532 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 02:09:57,536 INFO L130 PetriNetUnfolder]: 2/14 cut-off events. [2022-12-13 02:09:57,537 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 02:09:57,537 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:09:57,537 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:09:57,538 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 02:09:57,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:09:57,542 INFO L85 PathProgramCache]: Analyzing trace with hash 791724945, now seen corresponding path program 1 times [2022-12-13 02:09:57,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:09:57,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601828422] [2022-12-13 02:09:57,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:09:57,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:09:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:09:57,912 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 02:09:57,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:09:57,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601828422] [2022-12-13 02:09:57,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601828422] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 02:09:57,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 02:09:57,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 02:09:57,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126758267] [2022-12-13 02:09:57,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 02:09:57,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 02:09:57,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:09:57,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 02:09:57,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 02:09:57,947 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 15 [2022-12-13 02:09:57,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 15 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:09:57,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:09:57,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 15 [2022-12-13 02:09:57,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:09:58,033 INFO L130 PetriNetUnfolder]: 59/100 cut-off events. [2022-12-13 02:09:58,033 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-13 02:09:58,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 100 events. 59/100 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 262 event pairs, 23 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 165. Up to 78 conditions per place. [2022-12-13 02:09:58,035 INFO L137 encePairwiseOnDemand]: 11/15 looper letters, 17 selfloop transitions, 3 changer transitions 0/21 dead transitions. [2022-12-13 02:09:58,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 21 transitions, 97 flow [2022-12-13 02:09:58,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 02:09:58,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 02:09:58,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2022-12-13 02:09:58,045 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2022-12-13 02:09:58,047 INFO L175 Difference]: Start difference. First operand has 20 places, 15 transitions, 42 flow. Second operand 4 states and 25 transitions. [2022-12-13 02:09:58,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 21 transitions, 97 flow [2022-12-13 02:09:58,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 21 transitions, 87 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 02:09:58,051 INFO L231 Difference]: Finished difference. Result has 20 places, 16 transitions, 48 flow [2022-12-13 02:09:58,052 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=15, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=48, PETRI_PLACES=20, PETRI_TRANSITIONS=16} [2022-12-13 02:09:58,074 INFO L295 CegarLoopForPetriNet]: 20 programPoint places, 0 predicate places. [2022-12-13 02:09:58,074 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:09:58,075 INFO L89 Accepts]: Start accepts. Operand has 20 places, 16 transitions, 48 flow [2022-12-13 02:09:58,077 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:09:58,077 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:09:58,077 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 16 transitions, 48 flow [2022-12-13 02:09:58,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 20 places, 16 transitions, 48 flow [2022-12-13 02:09:58,082 INFO L130 PetriNetUnfolder]: 2/16 cut-off events. [2022-12-13 02:09:58,082 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 02:09:58,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 16 events. 2/16 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 13. Up to 4 conditions per place. [2022-12-13 02:09:58,085 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 16 transitions, 48 flow [2022-12-13 02:09:58,085 INFO L226 LiptonReduction]: Number of co-enabled transitions 66 [2022-12-13 02:09:58,102 ERROR L806 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-13 02:09:58,103 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 02:09:58,105 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 31 [2022-12-13 02:09:58,105 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 15 transitions, 43 flow [2022-12-13 02:09:58,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:09:58,105 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:09:58,105 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:09:58,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 02:09:58,106 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 02:09:58,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:09:58,106 INFO L85 PathProgramCache]: Analyzing trace with hash -854850643, now seen corresponding path program 1 times [2022-12-13 02:09:58,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:09:58,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240407344] [2022-12-13 02:09:58,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:09:58,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:09:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:09:58,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:09:58,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:09:58,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240407344] [2022-12-13 02:09:58,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240407344] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 02:09:58,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 02:09:58,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 02:09:58,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529216791] [2022-12-13 02:09:58,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 02:09:58,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 02:09:58,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:09:58,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 02:09:58,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 02:09:58,201 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 15 [2022-12-13 02:09:58,201 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 15 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:09:58,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:09:58,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 15 [2022-12-13 02:09:58,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:09:58,244 INFO L130 PetriNetUnfolder]: 16/43 cut-off events. [2022-12-13 02:09:58,244 INFO L131 PetriNetUnfolder]: For 2/12 co-relation queries the response was YES. [2022-12-13 02:09:58,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 43 events. 16/43 cut-off events. For 2/12 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 105 event pairs, 6 based on Foata normal form. 10/45 useless extension candidates. Maximal degree in co-relation 89. Up to 26 conditions per place. [2022-12-13 02:09:58,245 INFO L137 encePairwiseOnDemand]: 12/15 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2022-12-13 02:09:58,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 21 transitions, 93 flow [2022-12-13 02:09:58,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 02:09:58,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 02:09:58,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 3 states and 23 transitions. [2022-12-13 02:09:58,247 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5111111111111111 [2022-12-13 02:09:58,247 INFO L175 Difference]: Start difference. First operand has 20 places, 15 transitions, 43 flow. Second operand 3 states and 23 transitions. [2022-12-13 02:09:58,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 21 transitions, 93 flow [2022-12-13 02:09:58,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 21 transitions, 89 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 02:09:58,248 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2022-12-13 02:09:58,248 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=15, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2022-12-13 02:09:58,249 INFO L295 CegarLoopForPetriNet]: 20 programPoint places, -3 predicate places. [2022-12-13 02:09:58,249 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:09:58,250 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 0 transitions, 0 flow [2022-12-13 02:09:58,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 02:09:58,250 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 02:09:58,250 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 02:09:58,250 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 02:09:58,251 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 02:09:58,251 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 02:09:58,251 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 02:09:58,252 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 3 [2022-12-13 02:09:58,252 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 02:09:58,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:09:58,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 02:09:58,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 02:09:58,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 02:09:58,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 02:09:58,255 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 02:09:58,258 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 02:09:58,258 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 02:09:58,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:09:58 BasicIcfg [2022-12-13 02:09:58,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 02:09:58,262 INFO L158 Benchmark]: Toolchain (without parser) took 3844.46ms. Allocated memory was 180.4MB in the beginning and 251.7MB in the end (delta: 71.3MB). Free memory was 156.4MB in the beginning and 201.5MB in the end (delta: -45.1MB). Peak memory consumption was 26.7MB. Max. memory is 8.0GB. [2022-12-13 02:09:58,262 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 180.4MB. Free memory is still 156.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 02:09:58,263 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.90ms. Allocated memory is still 180.4MB. Free memory was 156.4MB in the beginning and 145.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-12-13 02:09:58,263 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.15ms. Allocated memory is still 180.4MB. Free memory was 145.4MB in the beginning and 143.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 02:09:58,263 INFO L158 Benchmark]: Boogie Preprocessor took 31.92ms. Allocated memory is still 180.4MB. Free memory was 143.8MB in the beginning and 142.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 02:09:58,264 INFO L158 Benchmark]: RCFGBuilder took 321.25ms. Allocated memory is still 180.4MB. Free memory was 142.3MB in the beginning and 128.1MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-13 02:09:58,264 INFO L158 Benchmark]: TraceAbstraction took 3198.75ms. Allocated memory was 180.4MB in the beginning and 251.7MB in the end (delta: 71.3MB). Free memory was 127.1MB in the beginning and 201.5MB in the end (delta: -74.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 02:09:58,265 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 180.4MB. Free memory is still 156.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 251.90ms. Allocated memory is still 180.4MB. Free memory was 156.4MB in the beginning and 145.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.15ms. Allocated memory is still 180.4MB. Free memory was 145.4MB in the beginning and 143.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.92ms. Allocated memory is still 180.4MB. Free memory was 143.8MB in the beginning and 142.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 321.25ms. Allocated memory is still 180.4MB. Free memory was 142.3MB in the beginning and 128.1MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3198.75ms. Allocated memory was 180.4MB in the beginning and 251.7MB in the end (delta: 71.3MB). Free memory was 127.1MB in the beginning and 201.5MB in the end (delta: -74.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 68 PlacesBefore, 20 PlacesAfterwards, 67 TransitionsBefore, 15 TransitionsAfterwards, 404 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 32 TrivialYvCompositions, 16 ConcurrentYvCompositions, 4 ChoiceCompositions, 52 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 191, independent: 189, independent conditional: 189, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 191, independent: 189, independent conditional: 0, independent unconditional: 189, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 191, independent: 189, independent conditional: 0, independent unconditional: 189, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 191, independent: 189, independent conditional: 0, independent unconditional: 189, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 191, independent: 189, independent conditional: 0, independent unconditional: 189, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 191, independent: 189, independent conditional: 0, independent unconditional: 189, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 191, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 191, unknown conditional: 0, unknown unconditional: 191] , Statistics on independence cache: Total cache size (in pairs): 293, Positive cache size: 291, Positive conditional cache size: 0, Positive unconditional cache size: 291, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, 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, 20 PlacesBefore, 20 PlacesAfterwards, 16 TransitionsBefore, 15 TransitionsAfterwards, 66 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, independent: 8, independent conditional: 8, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9, independent: 8, independent conditional: 8, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9, independent: 8, independent conditional: 4, independent unconditional: 4, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9, independent: 8, independent conditional: 4, independent unconditional: 4, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 8, independent conditional: 4, independent unconditional: 4, 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: 9, independent: 8, independent conditional: 0, independent unconditional: 8, 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: 6, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 9, unknown conditional: 5, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 8, Positive conditional cache size: 4, Positive unconditional cache size: 4, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 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): 9, Positive cache size: 8, Positive conditional cache size: 4, Positive unconditional cache size: 4, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 78]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 89 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 2 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=1, InterpolantAutomatonStates: 7, 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, 0.3s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 95 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1/1 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 02:09:58,287 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...