./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb --- 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-4e7fbc6 [2022-11-23 14:20:21,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:20:21,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:20:21,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:20:21,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:20:21,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:20:21,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:20:21,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:20:21,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:20:21,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:20:21,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:20:21,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:20:21,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:20:21,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:20:21,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:20:21,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:20:21,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:20:21,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:20:21,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:20:22,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:20:22,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:20:22,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:20:22,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:20:22,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:20:22,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:20:22,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:20:22,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:20:22,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:20:22,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:20:22,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:20:22,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:20:22,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:20:22,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:20:22,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:20:22,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:20:22,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:20:22,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:20:22,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:20:22,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:20:22,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:20:22,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:20:22,025 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 14:20:22,068 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:20:22,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:20:22,069 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:20:22,069 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:20:22,070 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:20:22,074 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:20:22,074 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:20:22,074 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:20:22,075 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:20:22,075 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:20:22,075 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:20:22,075 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:20:22,076 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:20:22,076 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:20:22,076 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:20:22,076 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:20:22,077 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:20:22,077 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:20:22,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:20:22,078 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:20:22,078 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:20:22,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:20:22,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:20:22,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:20:22,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:20:22,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:20:22,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:20:22,080 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 14:20:22,080 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:20:22,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:20:22,080 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:20:22,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:20:22,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:20:22,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:20:22,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:20:22,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:20:22,082 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:20:22,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:20:22,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:20:22,086 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:20:22,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:20:22,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:20:22,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:20:22,101 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_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb [2022-11-23 14:20:22,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:20:22,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:20:22,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:20:22,425 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:20:22,425 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:20:22,427 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i [2022-11-23 14:20:25,609 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:20:25,899 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:20:25,900 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i [2022-11-23 14:20:25,921 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/data/f2eabbeb7/2ce34e4ceb294d9f941b77e22e16f078/FLAG86957621c [2022-11-23 14:20:25,966 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/data/f2eabbeb7/2ce34e4ceb294d9f941b77e22e16f078 [2022-11-23 14:20:25,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:20:25,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:20:25,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:20:25,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:20:25,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:20:25,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:20:25" (1/1) ... [2022-11-23 14:20:25,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356239a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25, skipping insertion in model container [2022-11-23 14:20:25,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:20:25" (1/1) ... [2022-11-23 14:20:25,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:20:26,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:20:26,418 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_ce6b762e-047c-4945-b33d-d2b71699bcd1/sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i[30582,30595] [2022-11-23 14:20:26,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:20:26,436 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:20:26,499 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_ce6b762e-047c-4945-b33d-d2b71699bcd1/sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i[30582,30595] [2022-11-23 14:20:26,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:20:26,542 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:20:26,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:26 WrapperNode [2022-11-23 14:20:26,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:20:26,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:20:26,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:20:26,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:20:26,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:26" (1/1) ... [2022-11-23 14:20:26,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:26" (1/1) ... [2022-11-23 14:20:26,602 INFO L138 Inliner]: procedures = 170, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2022-11-23 14:20:26,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:20:26,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:20:26,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:20:26,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:20:26,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:26" (1/1) ... [2022-11-23 14:20:26,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:26" (1/1) ... [2022-11-23 14:20:26,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:26" (1/1) ... [2022-11-23 14:20:26,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:26" (1/1) ... [2022-11-23 14:20:26,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:26" (1/1) ... [2022-11-23 14:20:26,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:26" (1/1) ... [2022-11-23 14:20:26,639 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:26" (1/1) ... [2022-11-23 14:20:26,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:26" (1/1) ... [2022-11-23 14:20:26,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:20:26,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:20:26,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:20:26,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:20:26,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:26" (1/1) ... [2022-11-23 14:20:26,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:20:26,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:20:26,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:20:26,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:20:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:20:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-23 14:20:26,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-23 14:20:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:20:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:20:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:20:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:20:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:20:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:20:26,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:20:26,736 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:20:26,960 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:20:26,968 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:20:27,452 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:20:27,677 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:20:27,677 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 14:20:27,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:20:27 BoogieIcfgContainer [2022-11-23 14:20:27,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:20:27,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:20:27,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:20:27,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:20:27,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:20:25" (1/3) ... [2022-11-23 14:20:27,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a988e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:20:27, skipping insertion in model container [2022-11-23 14:20:27,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:26" (2/3) ... [2022-11-23 14:20:27,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a988e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:20:27, skipping insertion in model container [2022-11-23 14:20:27,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:20:27" (3/3) ... [2022-11-23 14:20:27,689 INFO L112 eAbstractionObserver]: Analyzing ICFG 12_fmaxsymopt_cas.i [2022-11-23 14:20:27,699 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:20:27,711 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:20:27,711 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 14:20:27,711 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:20:27,812 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 14:20:27,854 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:20:27,886 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 129 transitions, 263 flow [2022-11-23 14:20:27,890 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 129 transitions, 263 flow [2022-11-23 14:20:27,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 129 transitions, 263 flow [2022-11-23 14:20:28,004 INFO L130 PetriNetUnfolder]: 12/140 cut-off events. [2022-11-23 14:20:28,004 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 14:20:28,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 140 events. 12/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 202 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 103. Up to 4 conditions per place. [2022-11-23 14:20:28,014 INFO L119 LiptonReduction]: Number of co-enabled transitions 2520 [2022-11-23 14:20:58,218 INFO L134 LiptonReduction]: Checked pairs total: 2596 [2022-11-23 14:20:58,219 INFO L136 LiptonReduction]: Total number of compositions: 142 [2022-11-23 14:20:58,229 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 26 transitions, 57 flow [2022-11-23 14:20:58,249 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 82 states, 65 states have (on average 2.523076923076923) internal successors, (164), 81 states have internal predecessors, (164), 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) [2022-11-23 14:20:58,269 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:20:58,276 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;@14062054, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:20:58,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-11-23 14:20:58,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 65 states have (on average 2.523076923076923) internal successors, (164), 81 states have internal predecessors, (164), 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) [2022-11-23 14:20:58,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:20:58,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:20:58,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:20:58,287 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-11-23 14:20:58,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:20:58,293 INFO L85 PathProgramCache]: Analyzing trace with hash 624376936, now seen corresponding path program 1 times [2022-11-23 14:20:58,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:20:58,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536100622] [2022-11-23 14:20:58,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:20:58,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:20:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:20:58,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:20:58,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:20:58,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536100622] [2022-11-23 14:20:58,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536100622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:20:58,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:20:58,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:20:58,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498710472] [2022-11-23 14:20:58,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:20:58,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:20:58,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:20:58,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:20:58,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:20:58,636 INFO L87 Difference]: Start difference. First operand has 82 states, 65 states have (on average 2.523076923076923) internal successors, (164), 81 states have internal predecessors, (164), 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 2 states, 1 states have (on average 5.0) 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) [2022-11-23 14:20:58,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:20:58,735 INFO L93 Difference]: Finished difference Result 39 states and 74 transitions. [2022-11-23 14:20:58,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:20:58,739 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) 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 [2022-11-23 14:20:58,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:20:58,748 INFO L225 Difference]: With dead ends: 39 [2022-11-23 14:20:58,749 INFO L226 Difference]: Without dead ends: 39 [2022-11-23 14:20:58,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:20:58,756 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:20:58,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:20:58,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-23 14:20:58,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-23 14:20:58,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 2.0) internal successors, (74), 38 states have internal predecessors, (74), 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) [2022-11-23 14:20:58,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 74 transitions. [2022-11-23 14:20:58,804 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 74 transitions. Word has length 5 [2022-11-23 14:20:58,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:20:58,806 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 74 transitions. [2022-11-23 14:20:58,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) 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) [2022-11-23 14:20:58,810 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 74 transitions. [2022-11-23 14:20:58,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 14:20:58,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:20:58,813 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-23 14:20:58,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:20:58,813 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-11-23 14:20:58,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:20:58,814 INFO L85 PathProgramCache]: Analyzing trace with hash -2119270074, now seen corresponding path program 1 times [2022-11-23 14:20:58,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:20:58,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887366120] [2022-11-23 14:20:58,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:20:58,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:20:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:20:58,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:20:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:20:58,922 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:20:58,926 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:20:58,928 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-11-23 14:20:58,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2022-11-23 14:20:58,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2022-11-23 14:20:58,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2022-11-23 14:20:58,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2022-11-23 14:20:58,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2022-11-23 14:20:58,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2022-11-23 14:20:58,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2022-11-23 14:20:58,941 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2022-11-23 14:20:58,942 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2022-11-23 14:20:58,942 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2022-11-23 14:20:58,942 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2022-11-23 14:20:58,943 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2022-11-23 14:20:58,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2022-11-23 14:20:58,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2022-11-23 14:20:58,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2022-11-23 14:20:58,945 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2022-11-23 14:20:58,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:20:58,948 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 14:20:58,950 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 14:20:58,950 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-23 14:20:59,054 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 14:20:59,063 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:20:59,064 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 204 places, 220 transitions, 452 flow [2022-11-23 14:20:59,065 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 204 places, 220 transitions, 452 flow [2022-11-23 14:20:59,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 220 transitions, 452 flow [2022-11-23 14:20:59,137 INFO L130 PetriNetUnfolder]: 23/244 cut-off events. [2022-11-23 14:20:59,137 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 14:20:59,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 244 events. 23/244 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 661 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 193. Up to 6 conditions per place. [2022-11-23 14:20:59,153 INFO L119 LiptonReduction]: Number of co-enabled transitions 21420 [2022-11-23 14:21:26,489 WARN L233 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 112 DAG size of output: 99 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:22:10,143 WARN L233 SmtUtils]: Spent 5.62s on a formula simplification. DAG size of input: 112 DAG size of output: 99 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:24:24,203 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-23 14:24:24,204 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.checkImplication(TransFormulaUtils.java:1164) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.performInclusionCheck(SemanticIndependenceRelation.java:186) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.contains(SemanticIndependenceRelation.java:141) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.isIndependent(SemanticIndependenceRelation.java:119) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.isIndependent(SemanticIndependenceRelation.java:1) at de.uni_freiburg.informatik.ultimate.automata.partialorder.independence.UnionIndependenceRelation.isIndependent(UnionIndependenceRelation.java:73) at de.uni_freiburg.informatik.ultimate.automata.partialorder.independence.CachedIndependenceRelation.isIndependent(CachedIndependenceRelation.java:113) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.lambda$0(LiptonReduction.java:454) at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90) at java.base/java.util.HashMap$KeySpliterator.tryAdvance(HashMap.java:1642) at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127) at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.allMatch(ReferencePipeline.java:533) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.isLeftMover(LiptonReduction.java:454) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRuleCheck(LiptonReduction.java:409) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRule(LiptonReduction.java:312) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.(LiptonReduction.java:129) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.PetriNetLargeBlockEncoding.(PetriNetLargeBlockEncoding.java:133) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:95) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.Petri2FiniteAutomatonAbstractionProvider$Eager.getInitialAbstraction(Petri2FiniteAutomatonAbstractionProvider.java:148) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.Petri2FiniteAutomatonAbstractionProvider$Eager.getInitialAbstraction(Petri2FiniteAutomatonAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.createAutomataAbstraction(CegarLoopFactory.java:248) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.createFiniteAutomataCegarLoop(CegarLoopFactory.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructCegarLoop(CegarLoopFactory.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 52 more [2022-11-23 14:24:24,208 INFO L158 Benchmark]: Toolchain (without parser) took 238233.65ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 137.5MB in the beginning and 109.9MB in the end (delta: 27.6MB). Peak memory consumption was 133.0MB. Max. memory is 16.1GB. [2022-11-23 14:24:24,208 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:24:24,208 INFO L158 Benchmark]: CACSL2BoogieTranslator took 563.69ms. Allocated memory is still 165.7MB. Free memory was 137.3MB in the beginning and 118.5MB in the end (delta: 18.8MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-11-23 14:24:24,209 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.06ms. Allocated memory is still 165.7MB. Free memory was 118.5MB in the beginning and 115.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:24:24,209 INFO L158 Benchmark]: Boogie Preprocessor took 40.62ms. Allocated memory is still 165.7MB. Free memory was 115.6MB in the beginning and 112.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:24:24,209 INFO L158 Benchmark]: RCFGBuilder took 1035.52ms. Allocated memory is still 165.7MB. Free memory was 112.7MB in the beginning and 117.6MB in the end (delta: -4.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 14:24:24,210 INFO L158 Benchmark]: TraceAbstraction took 236524.98ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 116.5MB in the beginning and 109.9MB in the end (delta: 6.7MB). Peak memory consumption was 114.9MB. Max. memory is 16.1GB. [2022-11-23 14:24:24,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2022-11-23 14:24:24,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 563.69ms. Allocated memory is still 165.7MB. Free memory was 137.3MB in the beginning and 118.5MB in the end (delta: 18.8MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.06ms. Allocated memory is still 165.7MB. Free memory was 118.5MB in the beginning and 115.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.62ms. Allocated memory is still 165.7MB. Free memory was 115.6MB in the beginning and 112.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1035.52ms. Allocated memory is still 165.7MB. Free memory was 112.7MB in the beginning and 117.6MB in the end (delta: -4.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 236524.98ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 116.5MB in the beginning and 109.9MB in the end (delta: 6.7MB). Peak memory consumption was 114.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.3s, 121 PlacesBefore, 24 PlacesAfterwards, 129 TransitionsBefore, 26 TransitionsAfterwards, 2520 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 93 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 6 ChoiceCompositions, 142 TotalNumberOfCompositions, 2596 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2217, independent: 2146, independent conditional: 0, independent unconditional: 2146, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 22, unknown conditional: 0, unknown unconditional: 22] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1648, independent: 1625, independent conditional: 0, independent unconditional: 1625, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1648, independent: 1615, independent conditional: 0, independent unconditional: 1615, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 33, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8019, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 491, dependent conditional: 0, dependent unconditional: 491, unknown: 7516, unknown conditional: 0, unknown unconditional: 7516] ], Cache Queries: [ total: 2217, independent: 521, independent conditional: 0, independent unconditional: 521, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 1667, unknown conditional: 0, unknown unconditional: 1667] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb --- 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-4e7fbc6 [2022-11-23 14:24:26,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:24:26,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:24:26,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:24:26,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:24:26,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:24:26,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:24:26,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:24:26,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:24:26,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:24:26,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:24:26,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:24:26,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:24:26,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:24:26,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:24:26,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:24:26,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:24:26,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:24:26,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:24:26,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:24:26,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:24:26,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:24:26,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:24:26,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:24:26,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:24:26,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:24:26,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:24:26,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:24:26,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:24:26,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:24:26,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:24:26,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:24:26,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:24:26,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:24:26,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:24:26,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:24:26,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:24:26,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:24:26,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:24:26,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:24:26,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:24:26,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf [2022-11-23 14:24:26,695 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:24:26,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:24:26,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:24:26,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:24:26,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:24:26,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:24:26,698 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:24:26,699 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:24:26,699 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:24:26,699 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:24:26,700 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:24:26,700 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:24:26,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:24:26,701 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:24:26,702 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:24:26,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:24:26,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:24:26,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:24:26,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:24:26,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:24:26,703 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 14:24:26,703 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:24:26,703 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:24:26,703 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:24:26,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:24:26,704 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:24:26,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:24:26,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:24:26,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:24:26,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:24:26,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:24:26,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:24:26,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:24:26,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:24:26,706 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:24:26,706 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:24:26,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:24:26,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:24:26,706 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:24:26,707 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb [2022-11-23 14:24:27,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:24:27,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:24:27,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:24:27,147 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:24:27,148 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:24:27,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i [2022-11-23 14:24:30,266 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:24:30,520 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:24:30,521 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i [2022-11-23 14:24:30,533 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/data/56c93f52c/e31c75607a4a42e2968ba0922b6ea12e/FLAGaaa33d9fe [2022-11-23 14:24:30,554 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/data/56c93f52c/e31c75607a4a42e2968ba0922b6ea12e [2022-11-23 14:24:30,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:24:30,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:24:30,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:24:30,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:24:30,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:24:30,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:24:30" (1/1) ... [2022-11-23 14:24:30,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49956d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:30, skipping insertion in model container [2022-11-23 14:24:30,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:24:30" (1/1) ... [2022-11-23 14:24:30,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:24:30,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:24:31,025 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_ce6b762e-047c-4945-b33d-d2b71699bcd1/sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i[30582,30595] [2022-11-23 14:24:31,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:24:31,053 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:24:31,127 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_ce6b762e-047c-4945-b33d-d2b71699bcd1/sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i[30582,30595] [2022-11-23 14:24:31,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:24:31,208 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:24:31,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:31 WrapperNode [2022-11-23 14:24:31,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:24:31,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:24:31,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:24:31,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:24:31,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:31" (1/1) ... [2022-11-23 14:24:31,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:31" (1/1) ... [2022-11-23 14:24:31,300 INFO L138 Inliner]: procedures = 174, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2022-11-23 14:24:31,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:24:31,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:24:31,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:24:31,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:24:31,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:31" (1/1) ... [2022-11-23 14:24:31,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:31" (1/1) ... [2022-11-23 14:24:31,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:31" (1/1) ... [2022-11-23 14:24:31,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:31" (1/1) ... [2022-11-23 14:24:31,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:31" (1/1) ... [2022-11-23 14:24:31,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:31" (1/1) ... [2022-11-23 14:24:31,375 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:31" (1/1) ... [2022-11-23 14:24:31,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:31" (1/1) ... [2022-11-23 14:24:31,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:24:31,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:24:31,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:24:31,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:24:31,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:31" (1/1) ... [2022-11-23 14:24:31,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:24:31,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:24:31,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:24:31,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:24:31,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 14:24:31,479 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-23 14:24:31,480 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-23 14:24:31,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:24:31,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:24:31,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:24:31,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 14:24:31,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 14:24:31,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-23 14:24:31,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:24:31,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:24:31,482 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:24:31,718 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:24:31,720 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:24:32,183 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:24:32,383 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:24:32,385 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 14:24:32,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:24:32 BoogieIcfgContainer [2022-11-23 14:24:32,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:24:32,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:24:32,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:24:32,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:24:32,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:24:30" (1/3) ... [2022-11-23 14:24:32,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11cfa40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:24:32, skipping insertion in model container [2022-11-23 14:24:32,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:31" (2/3) ... [2022-11-23 14:24:32,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11cfa40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:24:32, skipping insertion in model container [2022-11-23 14:24:32,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:24:32" (3/3) ... [2022-11-23 14:24:32,399 INFO L112 eAbstractionObserver]: Analyzing ICFG 12_fmaxsymopt_cas.i [2022-11-23 14:24:32,408 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:24:32,417 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:24:32,417 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 14:24:32,417 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:24:32,539 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 14:24:32,589 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:24:32,629 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 129 transitions, 263 flow [2022-11-23 14:24:32,632 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 129 transitions, 263 flow [2022-11-23 14:24:32,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 129 transitions, 263 flow [2022-11-23 14:24:32,745 INFO L130 PetriNetUnfolder]: 12/140 cut-off events. [2022-11-23 14:24:32,745 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 14:24:32,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 140 events. 12/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 200 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 102. Up to 4 conditions per place. [2022-11-23 14:24:32,755 INFO L119 LiptonReduction]: Number of co-enabled transitions 2492 [2022-11-23 14:24:45,650 WARN L233 SmtUtils]: Spent 11.47s on a formula simplification. DAG size of input: 101 DAG size of output: 95 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:24:53,452 WARN L233 SmtUtils]: Spent 7.80s on a formula simplification. DAG size of input: 95 DAG size of output: 92 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:25:08,678 INFO L134 LiptonReduction]: Checked pairs total: 2371 [2022-11-23 14:25:08,678 INFO L136 LiptonReduction]: Total number of compositions: 142 [2022-11-23 14:25:08,686 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 26 transitions, 57 flow [2022-11-23 14:25:08,702 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 82 states, 65 states have (on average 2.523076923076923) internal successors, (164), 81 states have internal predecessors, (164), 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) [2022-11-23 14:25:08,719 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:25:08,724 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;@3912b730, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:25:08,724 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-11-23 14:25:08,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 65 states have (on average 2.523076923076923) internal successors, (164), 81 states have internal predecessors, (164), 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) [2022-11-23 14:25:08,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:25:08,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:08,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:25:08,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-11-23 14:25:08,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:08,736 INFO L85 PathProgramCache]: Analyzing trace with hash 630036496, now seen corresponding path program 1 times [2022-11-23 14:25:08,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:25:08,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836170851] [2022-11-23 14:25:08,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:08,750 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:25:08,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:25:08,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:25:08,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 14:25:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:08,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 14:25:08,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:25:08,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:25:08,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:25:08,915 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:25:08,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836170851] [2022-11-23 14:25:08,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836170851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:08,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:08,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:25:08,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859933609] [2022-11-23 14:25:08,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:08,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:25:08,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:25:08,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:25:08,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:25:08,957 INFO L87 Difference]: Start difference. First operand has 82 states, 65 states have (on average 2.523076923076923) internal successors, (164), 81 states have internal predecessors, (164), 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 2 states, 1 states have (on average 5.0) 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) [2022-11-23 14:25:09,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:09,108 INFO L93 Difference]: Finished difference Result 39 states and 74 transitions. [2022-11-23 14:25:09,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:25:09,111 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) 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 [2022-11-23 14:25:09,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:09,134 INFO L225 Difference]: With dead ends: 39 [2022-11-23 14:25:09,134 INFO L226 Difference]: Without dead ends: 39 [2022-11-23 14:25:09,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:25:09,158 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:09,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:25:09,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-23 14:25:09,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-23 14:25:09,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 2.0) internal successors, (74), 38 states have internal predecessors, (74), 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) [2022-11-23 14:25:09,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 74 transitions. [2022-11-23 14:25:09,265 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 74 transitions. Word has length 5 [2022-11-23 14:25:09,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:09,265 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 74 transitions. [2022-11-23 14:25:09,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) 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) [2022-11-23 14:25:09,266 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 74 transitions. [2022-11-23 14:25:09,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 14:25:09,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:09,266 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-23 14:25:09,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-23 14:25:09,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:25:09,479 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-11-23 14:25:09,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:09,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1943831713, now seen corresponding path program 1 times [2022-11-23 14:25:09,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:25:09,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318785840] [2022-11-23 14:25:09,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:09,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:25:09,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:25:09,482 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:25:09,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 14:25:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:25:09,584 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:25:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:25:09,634 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 14:25:09,635 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:25:09,652 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-11-23 14:25:09,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2022-11-23 14:25:09,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2022-11-23 14:25:09,656 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2022-11-23 14:25:09,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2022-11-23 14:25:09,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2022-11-23 14:25:09,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2022-11-23 14:25:09,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2022-11-23 14:25:09,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2022-11-23 14:25:09,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2022-11-23 14:25:09,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2022-11-23 14:25:09,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2022-11-23 14:25:09,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2022-11-23 14:25:09,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2022-11-23 14:25:09,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2022-11-23 14:25:09,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2022-11-23 14:25:09,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2022-11-23 14:25:09,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:25:09,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:25:09,871 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 14:25:09,872 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 14:25:09,872 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-23 14:25:09,980 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 14:25:10,008 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:25:10,009 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 219 transitions, 450 flow [2022-11-23 14:25:10,009 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 219 transitions, 450 flow [2022-11-23 14:25:10,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 219 transitions, 450 flow [2022-11-23 14:25:10,140 INFO L130 PetriNetUnfolder]: 23/243 cut-off events. [2022-11-23 14:25:10,140 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 14:25:10,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 243 events. 23/243 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 655 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 191. Up to 6 conditions per place. [2022-11-23 14:25:10,164 INFO L119 LiptonReduction]: Number of co-enabled transitions 21004 [2022-11-23 14:25:33,049 WARN L233 SmtUtils]: Spent 13.60s on a formula simplification. DAG size of input: 109 DAG size of output: 103 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:25:43,691 WARN L233 SmtUtils]: Spent 10.64s on a formula simplification. DAG size of input: 103 DAG size of output: 100 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:26:00,039 WARN L233 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 109 DAG size of output: 97 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:27:42,126 INFO L134 LiptonReduction]: Checked pairs total: 94412 [2022-11-23 14:27:42,127 INFO L136 LiptonReduction]: Total number of compositions: 254 [2022-11-23 14:27:42,129 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 90 transitions, 192 flow [2022-11-23 14:27:42,693 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7953 states, 7784 states have (on average 3.1544193216855088) internal successors, (24554), 7952 states have internal predecessors, (24554), 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) [2022-11-23 14:27:42,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:27:42,697 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;@3912b730, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:27:42,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-23 14:27:42,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 7953 states, 7784 states have (on average 3.1544193216855088) internal successors, (24554), 7952 states have internal predecessors, (24554), 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) [2022-11-23 14:27:42,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 14:27:42,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:27:42,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 14:27:42,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-23 14:27:42,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:27:42,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1408823310, now seen corresponding path program 1 times [2022-11-23 14:27:42,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:27:42,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003474582] [2022-11-23 14:27:42,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:27:42,743 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:27:42,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:27:42,751 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:27:42,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 14:27:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:27:42,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 14:27:42,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:27:42,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:27:42,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:27:42,902 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:27:42,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1003474582] [2022-11-23 14:27:42,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1003474582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:27:42,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:27:42,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:27:42,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530467784] [2022-11-23 14:27:42,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:27:42,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:27:42,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:27:42,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:27:42,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:27:42,922 INFO L87 Difference]: Start difference. First operand has 7953 states, 7784 states have (on average 3.1544193216855088) internal successors, (24554), 7952 states have internal predecessors, (24554), 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 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-23 14:27:43,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:27:43,478 INFO L93 Difference]: Finished difference Result 5251 states and 15243 transitions. [2022-11-23 14:27:43,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:27:43,484 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-23 14:27:43,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:27:43,591 INFO L225 Difference]: With dead ends: 5251 [2022-11-23 14:27:43,591 INFO L226 Difference]: Without dead ends: 5251 [2022-11-23 14:27:43,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:27:43,607 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:27:43,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:27:43,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5251 states. [2022-11-23 14:27:43,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5251 to 5251. [2022-11-23 14:27:43,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5226 states have (on average 2.9167623421354762) internal successors, (15243), 5250 states have internal predecessors, (15243), 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) [2022-11-23 14:27:43,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 15243 transitions. [2022-11-23 14:27:43,924 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 15243 transitions. Word has length 6 [2022-11-23 14:27:43,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:27:43,925 INFO L495 AbstractCegarLoop]: Abstraction has 5251 states and 15243 transitions. [2022-11-23 14:27:43,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-23 14:27:43,926 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 15243 transitions. [2022-11-23 14:27:43,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 14:27:43,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:27:43,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:27:43,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:27:44,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:27:44,146 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-23 14:27:44,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:27:44,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2041798573, now seen corresponding path program 1 times [2022-11-23 14:27:44,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:27:44,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718632014] [2022-11-23 14:27:44,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:27:44,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:27:44,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:27:44,149 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:27:44,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-23 14:27:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:27:44,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 14:27:44,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:27:44,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-23 14:27:44,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2022-11-23 14:27:44,498 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:27:44,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 46 [2022-11-23 14:27:44,676 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:27:44,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 63 [2022-11-23 14:27:44,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:27:44,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:27:44,820 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:27:44,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718632014] [2022-11-23 14:27:44,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718632014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:27:44,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:27:44,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:27:44,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498455894] [2022-11-23 14:27:44,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:27:44,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:27:44,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:27:44,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:27:44,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:27:44,823 INFO L87 Difference]: Start difference. First operand 5251 states and 15243 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-11-23 14:27:49,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:27:49,682 INFO L93 Difference]: Finished difference Result 5687 states and 16482 transitions. [2022-11-23 14:27:49,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:27:49,683 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2022-11-23 14:27:49,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:27:49,715 INFO L225 Difference]: With dead ends: 5687 [2022-11-23 14:27:49,715 INFO L226 Difference]: Without dead ends: 5687 [2022-11-23 14:27:49,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:27:49,719 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 88 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:27:49,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 88 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-23 14:27:49,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5687 states. [2022-11-23 14:27:49,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5687 to 5687. [2022-11-23 14:27:49,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5687 states, 5663 states have (on average 2.910471481546883) internal successors, (16482), 5686 states have internal predecessors, (16482), 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) [2022-11-23 14:27:49,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5687 states to 5687 states and 16482 transitions. [2022-11-23 14:27:49,990 INFO L78 Accepts]: Start accepts. Automaton has 5687 states and 16482 transitions. Word has length 10 [2022-11-23 14:27:49,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:27:49,991 INFO L495 AbstractCegarLoop]: Abstraction has 5687 states and 16482 transitions. [2022-11-23 14:27:49,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-11-23 14:27:49,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5687 states and 16482 transitions. [2022-11-23 14:27:49,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 14:27:49,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:27:49,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:27:50,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:27:50,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:27:50,208 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-23 14:27:50,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:27:50,209 INFO L85 PathProgramCache]: Analyzing trace with hash 611319314, now seen corresponding path program 1 times [2022-11-23 14:27:50,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:27:50,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499464863] [2022-11-23 14:27:50,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:27:50,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:27:50,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:27:50,211 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:27:50,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-23 14:27:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:27:50,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 14:27:50,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:27:50,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:27:50,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:27:50,489 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:27:50,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499464863] [2022-11-23 14:27:50,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499464863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:27:50,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:27:50,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:27:50,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217809148] [2022-11-23 14:27:50,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:27:50,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:27:50,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:27:50,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:27:50,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:27:50,495 INFO L87 Difference]: Start difference. First operand 5687 states and 16482 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-23 14:27:51,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:27:51,197 INFO L93 Difference]: Finished difference Result 7271 states and 20983 transitions. [2022-11-23 14:27:51,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:27:51,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-11-23 14:27:51,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:27:51,309 INFO L225 Difference]: With dead ends: 7271 [2022-11-23 14:27:51,310 INFO L226 Difference]: Without dead ends: 7271 [2022-11-23 14:27:51,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:27:51,311 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 45 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:27:51,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 104 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:27:51,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7271 states. [2022-11-23 14:27:51,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7271 to 5851. [2022-11-23 14:27:51,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5851 states, 5827 states have (on average 2.9085292603397974) internal successors, (16948), 5850 states have internal predecessors, (16948), 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) [2022-11-23 14:27:51,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5851 states to 5851 states and 16948 transitions. [2022-11-23 14:27:51,492 INFO L78 Accepts]: Start accepts. Automaton has 5851 states and 16948 transitions. Word has length 11 [2022-11-23 14:27:51,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:27:51,493 INFO L495 AbstractCegarLoop]: Abstraction has 5851 states and 16948 transitions. [2022-11-23 14:27:51,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-23 14:27:51,493 INFO L276 IsEmpty]: Start isEmpty. Operand 5851 states and 16948 transitions. [2022-11-23 14:27:51,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 14:27:51,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:27:51,503 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-23 14:27:51,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-23 14:27:51,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:27:51,721 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-23 14:27:51,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:27:51,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1162765489, now seen corresponding path program 1 times [2022-11-23 14:27:51,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:27:51,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843729678] [2022-11-23 14:27:51,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:27:51,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:27:51,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:27:51,723 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:27:51,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-23 14:27:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:27:51,833 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:27:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:27:51,878 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 14:27:51,879 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:27:51,879 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2022-11-23 14:27:51,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2022-11-23 14:27:51,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2022-11-23 14:27:51,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2022-11-23 14:27:51,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2022-11-23 14:27:51,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2022-11-23 14:27:51,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2022-11-23 14:27:51,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2022-11-23 14:27:51,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2022-11-23 14:27:51,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2022-11-23 14:27:51,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2022-11-23 14:27:51,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2022-11-23 14:27:51,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2022-11-23 14:27:51,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2022-11-23 14:27:51,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2022-11-23 14:27:51,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2022-11-23 14:27:51,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2022-11-23 14:27:51,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2022-11-23 14:27:51,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2022-11-23 14:27:51,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2022-11-23 14:27:51,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2022-11-23 14:27:51,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2022-11-23 14:27:51,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2022-11-23 14:27:51,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2022-11-23 14:27:51,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2022-11-23 14:27:51,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-23 14:27:52,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:27:52,086 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-23 14:27:52,086 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 14:27:52,086 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-23 14:27:52,244 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 14:27:52,249 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:27:52,249 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 285 places, 309 transitions, 639 flow [2022-11-23 14:27:52,249 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 285 places, 309 transitions, 639 flow [2022-11-23 14:27:52,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 285 places, 309 transitions, 639 flow [2022-11-23 14:27:52,334 INFO L130 PetriNetUnfolder]: 34/346 cut-off events. [2022-11-23 14:27:52,339 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-23 14:27:52,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 346 events. 34/346 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1175 event pairs, 0 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 280. Up to 8 conditions per place. [2022-11-23 14:27:52,371 INFO L119 LiptonReduction]: Number of co-enabled transitions 55536 [2022-11-23 14:29:38,566 WARN L233 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 109 DAG size of output: 97 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:30:15,944 INFO L134 LiptonReduction]: Checked pairs total: 261098 [2022-11-23 14:30:15,944 INFO L136 LiptonReduction]: Total number of compositions: 350 [2022-11-23 14:30:15,946 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 121 places, 132 transitions, 285 flow [2022-11-23 14:30:25,628 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 286585 states, 285040 states have (on average 4.249487791187202) internal successors, (1211274), 286584 states have internal predecessors, (1211274), 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) [2022-11-23 14:30:25,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:30:25,645 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;@3912b730, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:30:25,645 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-11-23 14:30:26,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 286585 states, 285040 states have (on average 4.249487791187202) internal successors, (1211274), 286584 states have internal predecessors, (1211274), 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) [2022-11-23 14:30:26,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 14:30:26,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:26,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 14:30:26,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-11-23 14:30:26,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:26,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1884054870, now seen corresponding path program 1 times [2022-11-23 14:30:26,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:30:26,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342503726] [2022-11-23 14:30:26,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:26,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:30:26,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:30:26,125 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:30:26,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-23 14:30:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:26,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 14:30:26,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:30:26,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:30:26,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:30:26,276 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:30:26,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342503726] [2022-11-23 14:30:26,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342503726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:30:26,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:30:26,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:30:26,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161254947] [2022-11-23 14:30:26,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:30:26,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:30:26,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:30:26,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:30:26,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:30:26,636 INFO L87 Difference]: Start difference. First operand has 286585 states, 285040 states have (on average 4.249487791187202) internal successors, (1211274), 286584 states have internal predecessors, (1211274), 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 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-23 14:30:30,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:30,087 INFO L93 Difference]: Finished difference Result 168067 states and 666379 transitions. [2022-11-23 14:30:30,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:30:30,088 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-23 14:30:30,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:32,462 INFO L225 Difference]: With dead ends: 168067 [2022-11-23 14:30:32,462 INFO L226 Difference]: Without dead ends: 168067 [2022-11-23 14:30:32,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:30:32,463 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:30:32,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:30:32,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168067 states. [2022-11-23 14:30:39,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168067 to 168067. [2022-11-23 14:30:39,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168067 states, 167942 states have (on average 3.9679115408891166) internal successors, (666379), 168066 states have internal predecessors, (666379), 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) [2022-11-23 14:30:41,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168067 states to 168067 states and 666379 transitions. [2022-11-23 14:30:41,103 INFO L78 Accepts]: Start accepts. Automaton has 168067 states and 666379 transitions. Word has length 6 [2022-11-23 14:30:41,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:30:41,103 INFO L495 AbstractCegarLoop]: Abstraction has 168067 states and 666379 transitions. [2022-11-23 14:30:41,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-23 14:30:41,103 INFO L276 IsEmpty]: Start isEmpty. Operand 168067 states and 666379 transitions. [2022-11-23 14:30:41,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 14:30:41,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:41,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:30:41,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-23 14:30:41,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:30:41,307 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-11-23 14:30:41,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:41,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1690544860, now seen corresponding path program 1 times [2022-11-23 14:30:41,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:30:41,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598542452] [2022-11-23 14:30:41,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:41,308 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:30:41,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:30:41,309 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:30:41,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6b762e-047c-4945-b33d-d2b71699bcd1/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-23 14:30:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:41,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 14:30:41,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:30:41,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-23 14:30:41,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2022-11-23 14:30:41,603 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:30:41,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 46 [2022-11-23 14:30:41,717 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:30:41,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 63 [2022-11-23 14:30:41,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:30:41,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:30:41,845 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:30:41,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598542452] [2022-11-23 14:30:41,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598542452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:30:41,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:30:41,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:30:41,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014964163] [2022-11-23 14:30:41,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:30:41,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:30:41,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:30:41,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:30:41,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:30:41,847 INFO L87 Difference]: Start difference. First operand 168067 states and 666379 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-11-23 14:30:50,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:50,621 INFO L93 Difference]: Finished difference Result 187295 states and 741343 transitions. [2022-11-23 14:30:50,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:30:50,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2022-11-23 14:30:50,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:52,590 INFO L225 Difference]: With dead ends: 187295 [2022-11-23 14:30:52,590 INFO L226 Difference]: Without dead ends: 187295 [2022-11-23 14:30:52,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:30:52,591 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 160 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:30:52,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 120 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-23 14:30:52,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187295 states. [2022-11-23 14:30:58,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187295 to 187295. [2022-11-23 14:30:58,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187295 states, 187171 states have (on average 3.960779180535446) internal successors, (741343), 187294 states have internal predecessors, (741343), 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)