./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_039aea90-2871-487d-93ee-88932d9edd81/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039aea90-2871-487d-93ee-88932d9edd81/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039aea90-2871-487d-93ee-88932d9edd81/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039aea90-2871-487d-93ee-88932d9edd81/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039aea90-2871-487d-93ee-88932d9edd81/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039aea90-2871-487d-93ee-88932d9edd81/bin/utaipan-7li7fVZpFI --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 39dcc47a23129180b44ef3e235976e9c499f5290fa3f0e6dd106879ae94f5ae2 --- 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-5e519f3 [2022-11-03 03:43:02,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:43:03,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:43:03,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:43:03,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:43:03,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:43:03,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:43:03,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:43:03,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:43:03,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:43:03,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:43:03,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:43:03,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:43:03,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:43:03,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:43:03,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:43:03,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:43:03,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:43:03,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:43:03,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:43:03,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:43:03,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:43:03,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:43:03,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:43:03,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:43:03,107 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:43:03,107 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:43:03,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:43:03,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:43:03,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:43:03,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:43:03,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:43:03,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:43:03,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:43:03,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:43:03,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:43:03,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:43:03,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:43:03,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:43:03,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:43:03,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:43:03,119 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039aea90-2871-487d-93ee-88932d9edd81/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 03:43:03,161 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:43:03,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:43:03,162 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:43:03,162 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:43:03,163 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:43:03,163 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:43:03,163 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:43:03,164 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:43:03,164 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:43:03,164 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:43:03,165 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:43:03,165 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:43:03,165 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:43:03,166 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:43:03,166 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:43:03,166 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:43:03,166 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:43:03,166 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:43:03,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:43:03,167 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:43:03,167 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 03:43:03,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:43:03,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:43:03,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:43:03,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:43:03,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:43:03,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:43:03,170 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 03:43:03,170 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:43:03,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:43:03,170 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:43:03,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:43:03,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:43:03,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:43:03,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:43:03,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:43:03,172 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:43:03,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:43:03,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:43:03,172 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:43:03,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:43:03,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:43:03,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:43:03,173 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_039aea90-2871-487d-93ee-88932d9edd81/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039aea90-2871-487d-93ee-88932d9edd81/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39dcc47a23129180b44ef3e235976e9c499f5290fa3f0e6dd106879ae94f5ae2 [2022-11-03 03:43:03,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:43:03,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:43:03,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:43:03,532 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:43:03,532 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:43:03,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039aea90-2871-487d-93ee-88932d9edd81/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2022-11-03 03:43:03,602 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039aea90-2871-487d-93ee-88932d9edd81/bin/utaipan-7li7fVZpFI/data/81931618b/eba6d56aaa1b4e9d8319c49718f1cc42/FLAG11f2d9774 [2022-11-03 03:43:04,113 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:43:04,114 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039aea90-2871-487d-93ee-88932d9edd81/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2022-11-03 03:43:04,130 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039aea90-2871-487d-93ee-88932d9edd81/bin/utaipan-7li7fVZpFI/data/81931618b/eba6d56aaa1b4e9d8319c49718f1cc42/FLAG11f2d9774 [2022-11-03 03:43:04,440 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039aea90-2871-487d-93ee-88932d9edd81/bin/utaipan-7li7fVZpFI/data/81931618b/eba6d56aaa1b4e9d8319c49718f1cc42 [2022-11-03 03:43:04,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:43:04,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:43:04,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:43:04,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:43:04,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:43:04,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11dd861e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04, skipping insertion in model container [2022-11-03 03:43:04,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:43:04,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:43:04,718 WARN L230 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_039aea90-2871-487d-93ee-88932d9edd81/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c[7978,7991] [2022-11-03 03:43:04,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:43:04,733 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:43:04,793 WARN L230 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_039aea90-2871-487d-93ee-88932d9edd81/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c[7978,7991] [2022-11-03 03:43:04,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:43:04,808 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:43:04,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04 WrapperNode [2022-11-03 03:43:04,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:43:04,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:43:04,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:43:04,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:43:04,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,859 INFO L138 Inliner]: procedures = 23, calls = 176, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 456 [2022-11-03 03:43:04,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:43:04,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:43:04,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:43:04,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:43:04,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,888 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:43:04,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:43:04,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:43:04,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:43:04,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:43:04,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039aea90-2871-487d-93ee-88932d9edd81/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:43:04,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039aea90-2871-487d-93ee-88932d9edd81/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:43:04,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039aea90-2871-487d-93ee-88932d9edd81/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:43:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:43:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-03 03:43:04,990 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-03 03:43:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-03 03:43:04,990 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-03 03:43:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-03 03:43:04,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-03 03:43:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-03 03:43:04,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-03 03:43:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:43:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:43:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:43:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-03 03:43:04,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-03 03:43:04,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:43:04,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:43:04,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:43:04,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:43:04,994 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 03:43:05,148 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:43:05,150 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:43:05,813 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:43:06,131 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:43:06,131 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:43:06,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:43:06 BoogieIcfgContainer [2022-11-03 03:43:06,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:43:06,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:43:06,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:43:06,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:43:06,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:43:04" (1/3) ... [2022-11-03 03:43:06,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17039117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:43:06, skipping insertion in model container [2022-11-03 03:43:06,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (2/3) ... [2022-11-03 03:43:06,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17039117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:43:06, skipping insertion in model container [2022-11-03 03:43:06,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:43:06" (3/3) ... [2022-11-03 03:43:06,143 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-4.wvr.c [2022-11-03 03:43:06,152 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 03:43:06,162 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:43:06,162 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-03 03:43:06,162 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 03:43:06,261 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-03 03:43:06,298 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 03:43:06,312 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 217 transitions, 466 flow [2022-11-03 03:43:06,315 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 217 transitions, 466 flow [2022-11-03 03:43:06,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 217 transitions, 466 flow [2022-11-03 03:43:06,418 INFO L130 PetriNetUnfolder]: 2/213 cut-off events. [2022-11-03 03:43:06,418 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-03 03:43:06,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 213 events. 2/213 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 281 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 162. Up to 2 conditions per place. [2022-11-03 03:43:06,429 INFO L118 LiptonReduction]: Number of co-enabled transitions 8064 [2022-11-03 03:43:15,851 INFO L133 LiptonReduction]: Checked pairs total: 69906 [2022-11-03 03:43:15,852 INFO L135 LiptonReduction]: Total number of compositions: 160 [2022-11-03 03:43:15,860 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 89 transitions, 210 flow [2022-11-03 03:43:24,071 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 234590 states, 233962 states have (on average 4.2365768800061545) internal successors, (991198), 234589 states have internal predecessors, (991198), 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) [2022-11-03 03:43:24,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:43:24,105 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;@64d1f6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:43:24,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-11-03 03:43:24,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 234590 states, 233962 states have (on average 4.2365768800061545) internal successors, (991198), 234589 states have internal predecessors, (991198), 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) [2022-11-03 03:43:24,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 03:43:24,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:24,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 03:43:24,517 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-11-03 03:43:24,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:24,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1314678560, now seen corresponding path program 1 times [2022-11-03 03:43:24,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:24,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153356599] [2022-11-03 03:43:24,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:24,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:25,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:43:25,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:25,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153356599] [2022-11-03 03:43:25,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153356599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:25,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:25,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 03:43:25,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053437921] [2022-11-03 03:43:25,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:25,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:43:25,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:25,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:43:25,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:43:25,499 INFO L87 Difference]: Start difference. First operand has 234590 states, 233962 states have (on average 4.2365768800061545) internal successors, (991198), 234589 states have internal predecessors, (991198), 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) [2022-11-03 03:43:30,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:30,340 INFO L93 Difference]: Finished difference Result 230770 states and 973485 transitions. [2022-11-03 03:43:30,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:43:30,366 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 [2022-11-03 03:43:30,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:33,147 INFO L225 Difference]: With dead ends: 230770 [2022-11-03 03:43:33,147 INFO L226 Difference]: Without dead ends: 230590 [2022-11-03 03:43:33,148 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 [2022-11-03 03:43:33,151 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 59 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:33,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 8 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:43:34,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230590 states. [2022-11-03 03:43:42,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230590 to 230590. [2022-11-03 03:43:43,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230590 states, 229966 states have (on average 4.229816581581625) internal successors, (972714), 230589 states have internal predecessors, (972714), 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) [2022-11-03 03:43:46,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230590 states to 230590 states and 972714 transitions. [2022-11-03 03:43:46,469 INFO L78 Accepts]: Start accepts. Automaton has 230590 states and 972714 transitions. Word has length 5 [2022-11-03 03:43:46,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:46,471 INFO L495 AbstractCegarLoop]: Abstraction has 230590 states and 972714 transitions. [2022-11-03 03:43:46,471 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) [2022-11-03 03:43:46,471 INFO L276 IsEmpty]: Start isEmpty. Operand 230590 states and 972714 transitions. [2022-11-03 03:43:46,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 03:43:46,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:46,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 03:43:46,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:43:46,473 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-11-03 03:43:46,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:46,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1314678561, now seen corresponding path program 1 times [2022-11-03 03:43:46,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:46,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029029598] [2022-11-03 03:43:46,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:46,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:46,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:43:46,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:46,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029029598] [2022-11-03 03:43:46,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029029598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:46,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:46,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:43:46,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183667605] [2022-11-03 03:43:46,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:46,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:43:46,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:46,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:43:46,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:43:46,831 INFO L87 Difference]: Start difference. First operand 230590 states and 972714 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2022-11-03 03:43:50,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:50,001 INFO L93 Difference]: Finished difference Result 238550 states and 1008093 transitions. [2022-11-03 03:43:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:43:50,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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 [2022-11-03 03:43:50,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:52,842 INFO L225 Difference]: With dead ends: 238550 [2022-11-03 03:43:52,843 INFO L226 Difference]: Without dead ends: 238550 [2022-11-03 03:43:52,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:43:52,844 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 77 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:52,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 14 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 03:43:53,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238550 states.