./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread/twostage_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/twostage_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:45:52,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:45:52,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:45:52,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:45:52,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:45:52,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:45:52,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:45:52,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:45:52,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:45:52,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:45:52,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:45:52,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:45:52,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:45:52,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:45:52,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:45:52,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:45:52,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:45:52,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:45:52,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:45:52,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:45:52,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:45:52,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:45:52,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:45:52,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:45:52,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:45:52,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:45:52,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:45:52,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:45:52,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:45:52,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:45:52,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:45:52,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:45:52,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:45:52,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:45:52,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:45:52,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:45:52,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:45:52,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:45:52,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:45:52,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:45:52,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:45:52,724 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 23:45:52,757 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:45:52,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:45:52,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:45:52,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:45:52,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:45:52,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:45:52,760 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:45:52,760 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:45:52,760 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:45:52,760 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:45:52,760 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:45:52,761 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:45:52,761 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:45:52,761 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:45:52,761 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:45:52,761 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:45:52,762 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:45:52,762 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:45:52,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:45:52,763 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:45:52,763 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:45:52,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:45:52,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:45:52,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:45:52,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:45:52,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:45:52,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:45:52,765 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:45:52,765 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:45:52,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:45:52,765 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:45:52,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:45:52,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:45:52,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:45:52,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:45:52,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:45:52,766 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:45:52,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:45:52,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:45:52,767 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:45:52,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:45:52,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:45:52,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:45:52,768 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c [2022-11-25 23:45:53,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:45:53,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:45:53,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:45:53,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:45:53,146 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:45:53,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread/twostage_3.i [2022-11-25 23:45:56,254 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:45:56,633 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:45:56,634 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/sv-benchmarks/c/pthread/twostage_3.i [2022-11-25 23:45:56,651 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur/data/a3cbe6724/864f81d16c7a4d24b38585716b56a761/FLAGe707e96a8 [2022-11-25 23:45:56,667 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur/data/a3cbe6724/864f81d16c7a4d24b38585716b56a761 [2022-11-25 23:45:56,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:45:56,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:45:56,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:45:56,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:45:56,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:45:56,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:45:56" (1/1) ... [2022-11-25 23:45:56,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28baedb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:45:56, skipping insertion in model container [2022-11-25 23:45:56,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:45:56" (1/1) ... [2022-11-25 23:45:56,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:45:56,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:45:57,421 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,426 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/sv-benchmarks/c/pthread/twostage_3.i[58991,59004] [2022-11-25 23:45:57,429 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,437 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,439 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,446 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,453 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,456 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,461 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,471 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-25 23:45:57,472 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,476 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-25 23:45:57,476 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:45:57,489 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:45:57,572 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,574 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/sv-benchmarks/c/pthread/twostage_3.i[58991,59004] [2022-11-25 23:45:57,579 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,581 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,582 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,585 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,586 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,588 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,589 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,603 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-25 23:45:57,603 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,604 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-25 23:45:57,605 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:45:57,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:45:57,716 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:45:57,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:45:57 WrapperNode [2022-11-25 23:45:57,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:45:57,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:45:57,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:45:57,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:45:57,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:45:57" (1/1) ... [2022-11-25 23:45:57,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:45:57" (1/1) ... [2022-11-25 23:45:57,786 INFO L138 Inliner]: procedures = 372, calls = 47, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 165 [2022-11-25 23:45:57,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:45:57,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:45:57,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:45:57,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:45:57,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:45:57" (1/1) ... [2022-11-25 23:45:57,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:45:57" (1/1) ... [2022-11-25 23:45:57,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:45:57" (1/1) ... [2022-11-25 23:45:57,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:45:57" (1/1) ... [2022-11-25 23:45:57,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:45:57" (1/1) ... [2022-11-25 23:45:57,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:45:57" (1/1) ... [2022-11-25 23:45:57,818 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:45:57" (1/1) ... [2022-11-25 23:45:57,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:45:57" (1/1) ... [2022-11-25 23:45:57,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:45:57,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:45:57,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:45:57,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:45:57,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:45:57" (1/1) ... [2022-11-25 23:45:57,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:45:57,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:45:57,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:45:57,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:45:57,902 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2022-11-25 23:45:57,902 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2022-11-25 23:45:57,902 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2022-11-25 23:45:57,903 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2022-11-25 23:45:57,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:45:57,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:45:57,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:45:57,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:45:57,903 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 23:45:57,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:45:57,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:45:57,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:45:57,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:45:57,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:45:57,906 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 23:45:58,075 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:45:58,078 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:45:58,550 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:45:58,559 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:45:58,560 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 23:45:58,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:45:58 BoogieIcfgContainer [2022-11-25 23:45:58,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:45:58,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:45:58,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:45:58,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:45:58,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:45:56" (1/3) ... [2022-11-25 23:45:58,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd5d3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:45:58, skipping insertion in model container [2022-11-25 23:45:58,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:45:57" (2/3) ... [2022-11-25 23:45:58,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd5d3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:45:58, skipping insertion in model container [2022-11-25 23:45:58,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:45:58" (3/3) ... [2022-11-25 23:45:58,571 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2022-11-25 23:45:58,580 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 23:45:58,591 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:45:58,591 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-25 23:45:58,592 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 23:45:58,695 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-25 23:45:58,754 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 23:45:58,775 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 224 transitions, 470 flow [2022-11-25 23:45:58,780 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 224 transitions, 470 flow [2022-11-25 23:45:58,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 224 transitions, 470 flow [2022-11-25 23:45:58,999 INFO L130 PetriNetUnfolder]: 39/437 cut-off events. [2022-11-25 23:45:58,999 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-25 23:45:59,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 437 events. 39/437 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1608 event pairs, 0 based on Foata normal form. 0/368 useless extension candidates. Maximal degree in co-relation 227. Up to 8 conditions per place. [2022-11-25 23:45:59,025 INFO L119 LiptonReduction]: Number of co-enabled transitions 8180 [2022-11-25 23:46:20,821 INFO L134 LiptonReduction]: Checked pairs total: 21102 [2022-11-25 23:46:20,823 INFO L136 LiptonReduction]: Total number of compositions: 239 [2022-11-25 23:46:20,831 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 49 transitions, 120 flow [2022-11-25 23:46:20,929 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1386 states, 1280 states have (on average 2.77890625) internal successors, (3557), 1385 states have internal predecessors, (3557), 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) [2022-11-25 23:46:20,947 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:46:20,955 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@bd240cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:46:20,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-25 23:46:20,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 1386 states, 1280 states have (on average 2.77890625) internal successors, (3557), 1385 states have internal predecessors, (3557), 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) [2022-11-25 23:46:20,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 23:46:20,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:20,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 23:46:20,966 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [funcAErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, funcAErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 23:46:20,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:20,972 INFO L85 PathProgramCache]: Analyzing trace with hash 25485439, now seen corresponding path program 1 times [2022-11-25 23:46:20,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:20,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130905357] [2022-11-25 23:46:20,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:20,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:21,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:21,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:21,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130905357] [2022-11-25 23:46:21,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130905357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:21,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:21,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:46:21,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789213174] [2022-11-25 23:46:21,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:21,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:46:21,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:21,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:46:21,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:46:21,556 INFO L87 Difference]: Start difference. First operand has 1386 states, 1280 states have (on average 2.77890625) internal successors, (3557), 1385 states have internal predecessors, (3557), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-25 23:46:21,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:21,777 INFO L93 Difference]: Finished difference Result 1195 states and 2992 transitions. [2022-11-25 23:46:21,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:46:21,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-11-25 23:46:21,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:21,804 INFO L225 Difference]: With dead ends: 1195 [2022-11-25 23:46:21,805 INFO L226 Difference]: Without dead ends: 1147 [2022-11-25 23:46:21,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:46:21,808 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 29 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:21,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 16 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:46:21,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2022-11-25 23:46:21,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1117. [2022-11-25 23:46:21,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 1070 states have (on average 2.6682242990654204) internal successors, (2855), 1116 states have internal predecessors, (2855), 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) [2022-11-25 23:46:21,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 2855 transitions. [2022-11-25 23:46:21,920 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 2855 transitions. Word has length 4 [2022-11-25 23:46:21,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:21,920 INFO L495 AbstractCegarLoop]: Abstraction has 1117 states and 2855 transitions. [2022-11-25 23:46:21,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-25 23:46:21,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 2855 transitions. [2022-11-25 23:46:21,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:46:21,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:21,922 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-25 23:46:21,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:46:21,922 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [funcAErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, funcAErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 23:46:21,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:21,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1278271481, now seen corresponding path program 1 times [2022-11-25 23:46:21,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:21,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084656366] [2022-11-25 23:46:21,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:21,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:46:22,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:46:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:46:22,075 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:46:22,077 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:46:22,079 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2022-11-25 23:46:22,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-11-25 23:46:22,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-25 23:46:22,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-25 23:46:22,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-11-25 23:46:22,083 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-11-25 23:46:22,083 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-25 23:46:22,083 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-11-25 23:46:22,083 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-11-25 23:46:22,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-11-25 23:46:22,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-25 23:46:22,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2022-11-25 23:46:22,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-25 23:46:22,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-11-25 23:46:22,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-25 23:46:22,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-25 23:46:22,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-25 23:46:22,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-25 23:46:22,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:46:22,088 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 23:46:22,090 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 23:46:22,090 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-25 23:46:22,122 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-25 23:46:22,125 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 23:46:22,126 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 256 places, 271 transitions, 590 flow [2022-11-25 23:46:22,126 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 256 places, 271 transitions, 590 flow [2022-11-25 23:46:22,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 256 places, 271 transitions, 590 flow [2022-11-25 23:46:22,440 INFO L130 PetriNetUnfolder]: 155/1370 cut-off events. [2022-11-25 23:46:22,440 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-25 23:46:22,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1467 conditions, 1370 events. 155/1370 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 7885 event pairs, 2 based on Foata normal form. 0/1136 useless extension candidates. Maximal degree in co-relation 802. Up to 32 conditions per place. [2022-11-25 23:46:22,498 INFO L119 LiptonReduction]: Number of co-enabled transitions 20520 [2022-11-25 23:46:46,857 INFO L134 LiptonReduction]: Checked pairs total: 66117 [2022-11-25 23:46:46,858 INFO L136 LiptonReduction]: Total number of compositions: 278 [2022-11-25 23:46:46,859 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 76 transitions, 200 flow [2022-11-25 23:46:54,125 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 162465 states, 160886 states have (on average 4.462613278967717) internal successors, (717972), 162464 states have internal predecessors, (717972), 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) [2022-11-25 23:46:54,147 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:46:54,148 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@bd240cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:46:54,162 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-25 23:46:54,466 INFO L276 IsEmpty]: Start isEmpty. Operand has 162465 states, 160886 states have (on average 4.462613278967717) internal successors, (717972), 162464 states have internal predecessors, (717972), 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) [2022-11-25 23:46:54,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:46:54,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:54,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:46:54,467 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [funcAErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, funcAErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:46:54,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:54,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1355869348, now seen corresponding path program 1 times [2022-11-25 23:46:54,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:54,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137958879] [2022-11-25 23:46:54,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:54,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:55,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:55,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:55,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137958879] [2022-11-25 23:46:55,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137958879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:55,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:55,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:46:55,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611389885] [2022-11-25 23:46:55,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:55,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:46:55,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:55,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:46:55,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:46:55,385 INFO L87 Difference]: Start difference. First operand has 162465 states, 160886 states have (on average 4.462613278967717) internal successors, (717972), 162464 states have internal predecessors, (717972), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-25 23:46:58,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:58,772 INFO L93 Difference]: Finished difference Result 165088 states and 706927 transitions. [2022-11-25 23:46:58,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:46:58,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2022-11-25 23:46:58,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:01,175 INFO L225 Difference]: With dead ends: 165088 [2022-11-25 23:47:01,175 INFO L226 Difference]: Without dead ends: 164796 [2022-11-25 23:47:01,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:01,177 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 52 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:01,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 32 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:47:02,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164796 states. [2022-11-25 23:47:09,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164796 to 160712. [2022-11-25 23:47:09,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160712 states, 159666 states have (on average 4.353657009006301) internal successors, (695131), 160711 states have internal predecessors, (695131), 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) [2022-11-25 23:47:12,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160712 states to 160712 states and 695131 transitions. [2022-11-25 23:47:12,172 INFO L78 Accepts]: Start accepts. Automaton has 160712 states and 695131 transitions. Word has length 5 [2022-11-25 23:47:12,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:12,173 INFO L495 AbstractCegarLoop]: Abstraction has 160712 states and 695131 transitions. [2022-11-25 23:47:12,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-25 23:47:12,173 INFO L276 IsEmpty]: Start isEmpty. Operand 160712 states and 695131 transitions. [2022-11-25 23:47:12,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 23:47:12,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:12,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:12,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:47:12,175 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting funcAErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [funcAErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, funcAErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:47:12,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:12,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1619650202, now seen corresponding path program 1 times [2022-11-25 23:47:12,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:12,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038465321] [2022-11-25 23:47:12,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:12,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:12,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:12,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:12,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038465321] [2022-11-25 23:47:12,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038465321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:12,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:12,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:47:12,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007135305] [2022-11-25 23:47:12,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:12,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:47:12,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:12,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:47:12,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:12,262 INFO L87 Difference]: Start difference. First operand 160712 states and 695131 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-25 23:47:14,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:14,242 INFO L93 Difference]: Finished difference Result 106194 states and 429651 transitions. [2022-11-25 23:47:14,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:47:14,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2022-11-25 23:47:14,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:15,010 INFO L225 Difference]: With dead ends: 106194 [2022-11-25 23:47:15,010 INFO L226 Difference]: Without dead ends: 105716 [2022-11-25 23:47:15,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:15,012 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 64 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:15,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 35 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:47:15,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105716 states. [2022-11-25 23:47:18,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105716 to 104417. [2022-11-25 23:47:18,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104417 states, 104145 states have (on average 4.070219405636372) internal successors, (423893), 104416 states have internal predecessors, (423893), 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) [2022-11-25 23:47:19,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104417 states to 104417 states and 423893 transitions. [2022-11-25 23:47:19,833 INFO L78 Accepts]: Start accepts. Automaton has 104417 states and 423893 transitions. Word has length 7 [2022-11-25 23:47:19,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:19,833 INFO L495 AbstractCegarLoop]: Abstraction has 104417 states and 423893 transitions. [2022-11-25 23:47:19,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-25 23:47:19,833 INFO L276 IsEmpty]: Start isEmpty. Operand 104417 states and 423893 transitions. [2022-11-25 23:47:19,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:47:19,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:19,836 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-25 23:47:19,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:47:19,836 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [funcAErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, funcAErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:47:19,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:19,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1910642168, now seen corresponding path program 1 times [2022-11-25 23:47:19,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:19,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201527108] [2022-11-25 23:47:19,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:19,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:19,964 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:19,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:19,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201527108] [2022-11-25 23:47:19,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201527108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:19,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:19,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:47:19,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487062839] [2022-11-25 23:47:19,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:19,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:47:19,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:19,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:47:19,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:19,967 INFO L87 Difference]: Start difference. First operand 104417 states and 423893 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-25 23:47:20,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:20,736 INFO L93 Difference]: Finished difference Result 97740 states and 396160 transitions. [2022-11-25 23:47:20,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:47:20,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2022-11-25 23:47:20,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:22,314 INFO L225 Difference]: With dead ends: 97740 [2022-11-25 23:47:22,314 INFO L226 Difference]: Without dead ends: 97740 [2022-11-25 23:47:22,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:22,315 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 56 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:22,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 14 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:22,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97740 states. [2022-11-25 23:47:25,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97740 to 97740. [2022-11-25 23:47:25,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97740 states, 97558 states have (on average 4.060763853297526) internal successors, (396160), 97739 states have internal predecessors, (396160), 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) [2022-11-25 23:47:26,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97740 states to 97740 states and 396160 transitions. [2022-11-25 23:47:26,231 INFO L78 Accepts]: Start accepts. Automaton has 97740 states and 396160 transitions. Word has length 9 [2022-11-25 23:47:26,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:26,232 INFO L495 AbstractCegarLoop]: Abstraction has 97740 states and 396160 transitions. [2022-11-25 23:47:26,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-25 23:47:26,233 INFO L276 IsEmpty]: Start isEmpty. Operand 97740 states and 396160 transitions. [2022-11-25 23:47:26,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:47:26,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:26,234 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-25 23:47:26,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:47:26,234 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [funcAErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, funcAErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:47:26,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:26,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1910642169, now seen corresponding path program 1 times [2022-11-25 23:47:26,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:26,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128092123] [2022-11-25 23:47:26,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:26,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:26,365 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:26,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:26,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128092123] [2022-11-25 23:47:26,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128092123] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:47:26,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988978211] [2022-11-25 23:47:26,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:26,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:26,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:26,370 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:26,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d370dee-e5db-498c-99c1-fad3ed581ee7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:47:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:26,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 23:47:26,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:27,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:27,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:47:27,294 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:27,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988978211] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:47:27,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2009576013] [2022-11-25 23:47:27,302 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-25 23:47:27,310 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:47:27,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2022-11-25 23:47:27,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802141694] [2022-11-25 23:47:27,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:47:27,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:47:27,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:27,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:47:27,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:47:27,315 INFO L87 Difference]: Start difference. First operand 97740 states and 396160 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-25 23:47:29,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:29,136 INFO L93 Difference]: Finished difference Result 95893 states and 380339 transitions. [2022-11-25 23:47:29,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:47:29,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) Word has length 9 [2022-11-25 23:47:29,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:29,732 INFO L225 Difference]: With dead ends: 95893 [2022-11-25 23:47:29,732 INFO L226 Difference]: Without dead ends: 89853 [2022-11-25 23:47:29,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:47:29,734 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 235 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:29,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 54 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:47:29,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89853 states.