./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/fib_unsafe-5-racy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/fib_unsafe-5-racy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur --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 146f0d3d7f309689872842ec2e107172ef6d7d230f0dea419a95cb8899767aeb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:56:01,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:56:01,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:56:01,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:56:01,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:56:01,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:56:01,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:56:01,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:56:01,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:56:01,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:56:01,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:56:01,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:56:01,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:56:01,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:56:01,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:56:01,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:56:01,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:56:01,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:56:01,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:56:01,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:56:01,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:56:01,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:56:01,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:56:01,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:56:01,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:56:01,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:56:01,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:56:01,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:56:01,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:56:01,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:56:01,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:56:01,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:56:01,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:56:01,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:56:01,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:56:01,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:56:01,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:56:01,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:56:01,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:56:01,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:56:01,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:56:01,657 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-25 23:56:01,679 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:56:01,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:56:01,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:56:01,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:56:01,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:56:01,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:56:01,681 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:56:01,681 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:56:01,681 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:56:01,682 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:56:01,682 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:56:01,682 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:56:01,682 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:56:01,683 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:56:01,683 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:56:01,683 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:56:01,683 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:56:01,683 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:56:01,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:56:01,684 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:56:01,685 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:56:01,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:56:01,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:56:01,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:56:01,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:56:01,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:56:01,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:56:01,686 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 23:56:01,686 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:56:01,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:56:01,687 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:56:01,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:56:01,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:56:01,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:56:01,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:56:01,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:56:01,688 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:56:01,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:56:01,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:56:01,689 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:56:01,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:56:01,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:56:01,689 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:56:01,689 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_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 146f0d3d7f309689872842ec2e107172ef6d7d230f0dea419a95cb8899767aeb [2022-11-25 23:56:01,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:56:02,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:56:02,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:56:02,009 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:56:02,010 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:56:02,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread/fib_unsafe-5-racy.i [2022-11-25 23:56:05,122 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:56:05,377 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:56:05,377 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/sv-benchmarks/c/pthread/fib_unsafe-5-racy.i [2022-11-25 23:56:05,389 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/data/595fcad85/35cef037f58b414f843eff2401414a25/FLAGbd30d0542 [2022-11-25 23:56:05,403 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/data/595fcad85/35cef037f58b414f843eff2401414a25 [2022-11-25 23:56:05,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:56:05,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:56:05,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:56:05,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:56:05,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:56:05,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:56:05" (1/1) ... [2022-11-25 23:56:05,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9482afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:05, skipping insertion in model container [2022-11-25 23:56:05,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:56:05" (1/1) ... [2022-11-25 23:56:05,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:56:05,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:56:05,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:56:05,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:56:05,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:56:05,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:56:05,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:56:05,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:56:05,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:56:05,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:56:05,853 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_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/sv-benchmarks/c/pthread/fib_unsafe-5-racy.i[30819,30832] [2022-11-25 23:56:05,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:56:05,870 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:56:05,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:56:05,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:56:05,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:56:05,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:56:05,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:56:05,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:56:05,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:56:05,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:56:05,925 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_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/sv-benchmarks/c/pthread/fib_unsafe-5-racy.i[30819,30832] [2022-11-25 23:56:05,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:56:05,957 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:56:05,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:05 WrapperNode [2022-11-25 23:56:05,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:56:05,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:56:05,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:56:05,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:56:05,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:05" (1/1) ... [2022-11-25 23:56:05,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:05" (1/1) ... [2022-11-25 23:56:06,009 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2022-11-25 23:56:06,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:56:06,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:56:06,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:56:06,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:56:06,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:05" (1/1) ... [2022-11-25 23:56:06,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:05" (1/1) ... [2022-11-25 23:56:06,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:05" (1/1) ... [2022-11-25 23:56:06,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:05" (1/1) ... [2022-11-25 23:56:06,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:05" (1/1) ... [2022-11-25 23:56:06,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:05" (1/1) ... [2022-11-25 23:56:06,035 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:05" (1/1) ... [2022-11-25 23:56:06,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:05" (1/1) ... [2022-11-25 23:56:06,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:56:06,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:56:06,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:56:06,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:56:06,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:05" (1/1) ... [2022-11-25 23:56:06,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:56:06,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:56:06,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:56:06,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:56:06,121 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-25 23:56:06,122 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-25 23:56:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-25 23:56:06,122 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-25 23:56:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:56:06,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 23:56:06,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:56:06,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:56:06,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:56:06,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:56:06,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 23:56:06,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:56:06,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:56:06,126 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 23:56:06,279 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:56:06,281 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:56:06,728 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:56:06,825 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:56:06,836 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 23:56:06,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:56:06 BoogieIcfgContainer [2022-11-25 23:56:06,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:56:06,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:56:06,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:56:06,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:56:06,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:56:05" (1/3) ... [2022-11-25 23:56:06,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a7ac6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:56:06, skipping insertion in model container [2022-11-25 23:56:06,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:05" (2/3) ... [2022-11-25 23:56:06,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a7ac6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:56:06, skipping insertion in model container [2022-11-25 23:56:06,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:56:06" (3/3) ... [2022-11-25 23:56:06,856 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_unsafe-5-racy.i [2022-11-25 23:56:06,866 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 23:56:06,877 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:56:06,878 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-25 23:56:06,878 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 23:56:06,987 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 23:56:07,026 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 23:56:07,042 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 192 places, 193 transitions, 396 flow [2022-11-25 23:56:07,046 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 192 places, 193 transitions, 396 flow [2022-11-25 23:56:07,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 193 transitions, 396 flow [2022-11-25 23:56:07,154 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-11-25 23:56:07,155 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 23:56:07,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 191 events. 8/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 366 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 159. Up to 2 conditions per place. [2022-11-25 23:56:07,176 INFO L119 LiptonReduction]: Number of co-enabled transitions 13080 [2022-11-25 23:56:12,008 INFO L134 LiptonReduction]: Checked pairs total: 14338 [2022-11-25 23:56:12,008 INFO L136 LiptonReduction]: Total number of compositions: 218 [2022-11-25 23:56:12,019 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 50 transitions, 110 flow [2022-11-25 23:56:12,139 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2122 states, 1161 states have (on average 5.544358311800172) internal successors, (6437), 2121 states have internal predecessors, (6437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:12,169 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:56:12,178 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;@65586b74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:56:12,179 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-11-25 23:56:12,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 2122 states, 1161 states have (on average 5.544358311800172) internal successors, (6437), 2121 states have internal predecessors, (6437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:12,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-25 23:56:12,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:12,193 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-25 23:56:12,194 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 23:56:12,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:12,202 INFO L85 PathProgramCache]: Analyzing trace with hash 779, now seen corresponding path program 1 times [2022-11-25 23:56:12,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:12,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814563825] [2022-11-25 23:56:12,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:12,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:12,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:56:12,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:56:12,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814563825] [2022-11-25 23:56:12,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814563825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:56:12,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:56:12,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 23:56:12,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189971838] [2022-11-25 23:56:12,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:56:12,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:56:12,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:56:12,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:56:12,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:56:12,416 INFO L87 Difference]: Start difference. First operand has 2122 states, 1161 states have (on average 5.544358311800172) internal successors, (6437), 2121 states have internal predecessors, (6437), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:12,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:56:12,482 INFO L93 Difference]: Finished difference Result 87 states and 251 transitions. [2022-11-25 23:56:12,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:56:12,485 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-25 23:56:12,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:56:12,496 INFO L225 Difference]: With dead ends: 87 [2022-11-25 23:56:12,497 INFO L226 Difference]: Without dead ends: 71 [2022-11-25 23:56:12,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:56:12,505 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:56:12,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:56:12,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-25 23:56:12,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-11-25 23:56:12,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 69 states have (on average 2.9420289855072466) internal successors, (203), 70 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:12,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 203 transitions. [2022-11-25 23:56:12,563 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 203 transitions. Word has length 1 [2022-11-25 23:56:12,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:56:12,567 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 203 transitions. [2022-11-25 23:56:12,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:12,573 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 203 transitions. [2022-11-25 23:56:12,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 23:56:12,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:12,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:56:12,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:56:12,578 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 23:56:12,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:12,581 INFO L85 PathProgramCache]: Analyzing trace with hash 644573282, now seen corresponding path program 1 times [2022-11-25 23:56:12,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:12,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453677343] [2022-11-25 23:56:12,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:12,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:12,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:56:12,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:56:12,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453677343] [2022-11-25 23:56:12,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453677343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:56:12,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:56:12,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:56:12,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685823650] [2022-11-25 23:56:12,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:56:12,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:56:12,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:56:12,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:56:12,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:56:12,802 INFO L87 Difference]: Start difference. First operand 71 states and 203 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:12,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:56:12,852 INFO L93 Difference]: Finished difference Result 80 states and 230 transitions. [2022-11-25 23:56:12,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:56:12,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-25 23:56:12,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:56:12,854 INFO L225 Difference]: With dead ends: 80 [2022-11-25 23:56:12,854 INFO L226 Difference]: Without dead ends: 80 [2022-11-25 23:56:12,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:56:12,856 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:56:12,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 6 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:56:12,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-25 23:56:12,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-11-25 23:56:12,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 78 states have (on average 2.948717948717949) internal successors, (230), 79 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:12,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 230 transitions. [2022-11-25 23:56:12,867 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 230 transitions. Word has length 7 [2022-11-25 23:56:12,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:56:12,867 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 230 transitions. [2022-11-25 23:56:12,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:12,868 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 230 transitions. [2022-11-25 23:56:12,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 23:56:12,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:12,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:56:12,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:56:12,870 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 23:56:12,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:12,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1493035480, now seen corresponding path program 1 times [2022-11-25 23:56:12,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:12,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063477338] [2022-11-25 23:56:12,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:12,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:12,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:56:12,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:56:12,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063477338] [2022-11-25 23:56:12,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063477338] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:56:12,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802400500] [2022-11-25 23:56:12,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:12,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:56:12,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:56:12,963 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:56:12,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:56:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:13,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:56:13,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:56:13,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 23:56:13,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:56:13,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802400500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:56:13,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:56:13,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 23:56:13,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304100839] [2022-11-25 23:56:13,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:56:13,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:56:13,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:56:13,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:56:13,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:56:13,115 INFO L87 Difference]: Start difference. First operand 80 states and 230 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:13,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:56:13,181 INFO L93 Difference]: Finished difference Result 123 states and 355 transitions. [2022-11-25 23:56:13,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:56:13,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-25 23:56:13,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:56:13,183 INFO L225 Difference]: With dead ends: 123 [2022-11-25 23:56:13,183 INFO L226 Difference]: Without dead ends: 123 [2022-11-25 23:56:13,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:56:13,185 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:56:13,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:56:13,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-11-25 23:56:13,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 83. [2022-11-25 23:56:13,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 81 states have (on average 2.950617283950617) internal successors, (239), 82 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:13,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 239 transitions. [2022-11-25 23:56:13,209 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 239 transitions. Word has length 8 [2022-11-25 23:56:13,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:56:13,210 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 239 transitions. [2022-11-25 23:56:13,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:13,210 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 239 transitions. [2022-11-25 23:56:13,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:56:13,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:13,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:56:13,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:56:13,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:56:13,417 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 23:56:13,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:13,417 INFO L85 PathProgramCache]: Analyzing trace with hash -168854554, now seen corresponding path program 1 times [2022-11-25 23:56:13,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:13,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446957258] [2022-11-25 23:56:13,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:13,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:13,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:56:13,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:56:13,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446957258] [2022-11-25 23:56:13,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446957258] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:56:13,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462351806] [2022-11-25 23:56:13,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:13,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:56:13,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:56:13,576 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:56:13,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:56:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:13,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:56:13,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:56:13,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:56:13,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:56:13,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:56:13,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462351806] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:56:13,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1660856225] [2022-11-25 23:56:13,765 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-25 23:56:13,772 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:56:13,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-25 23:56:13,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17078566] [2022-11-25 23:56:13,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:56:13,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:56:13,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:56:13,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:56:13,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:56:13,782 INFO L87 Difference]: Start difference. First operand 83 states and 239 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:13,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:56:13,863 INFO L93 Difference]: Finished difference Result 110 states and 320 transitions. [2022-11-25 23:56:13,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:56:13,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 [2022-11-25 23:56:13,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:56:13,869 INFO L225 Difference]: With dead ends: 110 [2022-11-25 23:56:13,869 INFO L226 Difference]: Without dead ends: 110 [2022-11-25 23:56:13,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:56:13,877 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 42 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:56:13,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 12 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:56:13,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-11-25 23:56:13,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2022-11-25 23:56:13,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 2.962962962962963) internal successors, (320), 109 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:13,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 320 transitions. [2022-11-25 23:56:13,905 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 320 transitions. Word has length 10 [2022-11-25 23:56:13,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:56:13,906 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 320 transitions. [2022-11-25 23:56:13,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:13,906 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 320 transitions. [2022-11-25 23:56:13,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:56:13,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:13,908 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:56:13,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:56:14,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:56:14,115 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 23:56:14,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:14,115 INFO L85 PathProgramCache]: Analyzing trace with hash -359861364, now seen corresponding path program 2 times [2022-11-25 23:56:14,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:14,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947456666] [2022-11-25 23:56:14,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:14,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:14,289 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:56:14,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:56:14,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947456666] [2022-11-25 23:56:14,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947456666] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:56:14,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570644447] [2022-11-25 23:56:14,290 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 23:56:14,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:56:14,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:56:14,292 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:56:14,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:56:14,409 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-25 23:56:14,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:56:14,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 23:56:14,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:56:14,442 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:56:14,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:56:14,512 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:56:14,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570644447] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:56:14,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [139986645] [2022-11-25 23:56:14,516 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-25 23:56:14,517 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:56:14,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-11-25 23:56:14,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103888131] [2022-11-25 23:56:14,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:56:14,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 23:56:14,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:56:14,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 23:56:14,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:56:14,521 INFO L87 Difference]: Start difference. First operand 110 states and 320 transitions. Second operand has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:14,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:56:14,668 INFO L93 Difference]: Finished difference Result 164 states and 482 transitions. [2022-11-25 23:56:14,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 23:56:14,668 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 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 13 [2022-11-25 23:56:14,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:56:14,674 INFO L225 Difference]: With dead ends: 164 [2022-11-25 23:56:14,675 INFO L226 Difference]: Without dead ends: 164 [2022-11-25 23:56:14,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:56:14,676 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 99 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:56:14,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 21 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:56:14,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-25 23:56:14,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2022-11-25 23:56:14,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 162 states have (on average 2.9753086419753085) internal successors, (482), 163 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:14,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 482 transitions. [2022-11-25 23:56:14,708 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 482 transitions. Word has length 13 [2022-11-25 23:56:14,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:56:14,708 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 482 transitions. [2022-11-25 23:56:14,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:14,709 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 482 transitions. [2022-11-25 23:56:14,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 23:56:14,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:14,712 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:56:14,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:56:14,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:56:14,925 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 23:56:14,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:14,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1461308084, now seen corresponding path program 3 times [2022-11-25 23:56:14,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:14,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786060399] [2022-11-25 23:56:14,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:14,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:15,152 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:56:15,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:56:15,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786060399] [2022-11-25 23:56:15,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786060399] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:56:15,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629490287] [2022-11-25 23:56:15,153 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 23:56:15,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:56:15,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:56:15,155 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:56:15,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:56:15,274 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 23:56:15,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:56:15,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 23:56:15,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:56:15,360 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:56:15,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:56:15,520 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:56:15,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629490287] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:56:15,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1405345834] [2022-11-25 23:56:15,522 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-25 23:56:15,523 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:56:15,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 15 [2022-11-25 23:56:15,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318300276] [2022-11-25 23:56:15,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:56:15,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 23:56:15,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:56:15,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 23:56:15,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2022-11-25 23:56:15,528 INFO L87 Difference]: Start difference. First operand 164 states and 482 transitions. Second operand has 15 states, 15 states have (on average 1.6) internal successors, (24), 15 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:15,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:56:15,696 INFO L93 Difference]: Finished difference Result 182 states and 536 transitions. [2022-11-25 23:56:15,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:56:15,696 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.6) internal successors, (24), 15 states have internal predecessors, (24), 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 19 [2022-11-25 23:56:15,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:56:15,698 INFO L225 Difference]: With dead ends: 182 [2022-11-25 23:56:15,698 INFO L226 Difference]: Without dead ends: 182 [2022-11-25 23:56:15,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2022-11-25 23:56:15,700 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 207 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:56:15,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 9 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:56:15,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-25 23:56:15,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-11-25 23:56:15,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 180 states have (on average 2.977777777777778) internal successors, (536), 181 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:15,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 536 transitions. [2022-11-25 23:56:15,727 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 536 transitions. Word has length 19 [2022-11-25 23:56:15,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:56:15,727 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 536 transitions. [2022-11-25 23:56:15,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.6) internal successors, (24), 15 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:56:15,727 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 536 transitions. [2022-11-25 23:56:15,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 23:56:15,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:15,733 INFO L195 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:56:15,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 23:56:15,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:56:15,944 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 23:56:15,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:15,945 INFO L85 PathProgramCache]: Analyzing trace with hash 155910284, now seen corresponding path program 4 times [2022-11-25 23:56:15,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:15,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388276654] [2022-11-25 23:56:15,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:15,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:56:15,988 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:56:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:56:16,075 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:56:16,080 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:56:16,081 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2022-11-25 23:56:16,083 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-11-25 23:56:16,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-11-25 23:56:16,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-11-25 23:56:16,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-11-25 23:56:16,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-11-25 23:56:16,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-11-25 23:56:16,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-11-25 23:56:16,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-11-25 23:56:16,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-11-25 23:56:16,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-11-25 23:56:16,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-11-25 23:56:16,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-11-25 23:56:16,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-11-25 23:56:16,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-11-25 23:56:16,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-11-25 23:56:16,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 46 remaining) [2022-11-25 23:56:16,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 46 remaining) [2022-11-25 23:56:16,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-11-25 23:56:16,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-11-25 23:56:16,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-11-25 23:56:16,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-11-25 23:56:16,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-11-25 23:56:16,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-11-25 23:56:16,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-11-25 23:56:16,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2022-11-25 23:56:16,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2022-11-25 23:56:16,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-11-25 23:56:16,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-11-25 23:56:16,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-11-25 23:56:16,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-11-25 23:56:16,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-11-25 23:56:16,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-11-25 23:56:16,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-11-25 23:56:16,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-11-25 23:56:16,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-11-25 23:56:16,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-11-25 23:56:16,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-11-25 23:56:16,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-11-25 23:56:16,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-11-25 23:56:16,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-11-25 23:56:16,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-11-25 23:56:16,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-11-25 23:56:16,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-11-25 23:56:16,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-11-25 23:56:16,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-11-25 23:56:16,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:56:16,100 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2022-11-25 23:56:16,107 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 23:56:16,108 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:56:16,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:56:16 BasicIcfg [2022-11-25 23:56:16,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:56:16,200 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:56:16,200 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:56:16,201 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:56:16,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:56:06" (3/4) ... [2022-11-25 23:56:16,204 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:56:16,204 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:56:16,205 INFO L158 Benchmark]: Toolchain (without parser) took 10797.27ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 88.4MB in the beginning and 93.3MB in the end (delta: -4.9MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2022-11-25 23:56:16,205 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:56:16,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 555.49ms. Allocated memory is still 130.0MB. Free memory was 88.4MB in the beginning and 67.9MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 23:56:16,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.21ms. Allocated memory is still 130.0MB. Free memory was 67.4MB in the beginning and 65.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:56:16,206 INFO L158 Benchmark]: Boogie Preprocessor took 29.21ms. Allocated memory is still 130.0MB. Free memory was 65.3MB in the beginning and 63.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:56:16,206 INFO L158 Benchmark]: RCFGBuilder took 806.79ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 63.7MB in the beginning and 143.6MB in the end (delta: -79.9MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2022-11-25 23:56:16,207 INFO L158 Benchmark]: TraceAbstraction took 9350.82ms. Allocated memory is still 178.3MB. Free memory was 143.6MB in the beginning and 94.4MB in the end (delta: 49.3MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2022-11-25 23:56:16,207 INFO L158 Benchmark]: Witness Printer took 3.94ms. Allocated memory is still 178.3MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:56:16,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 555.49ms. Allocated memory is still 130.0MB. Free memory was 88.4MB in the beginning and 67.9MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.21ms. Allocated memory is still 130.0MB. Free memory was 67.4MB in the beginning and 65.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.21ms. Allocated memory is still 130.0MB. Free memory was 65.3MB in the beginning and 63.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 806.79ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 63.7MB in the beginning and 143.6MB in the end (delta: -79.9MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9350.82ms. Allocated memory is still 178.3MB. Free memory was 143.6MB in the beginning and 94.4MB in the end (delta: 49.3MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. * Witness Printer took 3.94ms. Allocated memory is still 178.3MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 192 PlacesBefore, 53 PlacesAfterwards, 193 TransitionsBefore, 50 TransitionsAfterwards, 13080 CoEnabledTransitionPairs, 8 FixpointIterations, 35 TrivialSequentialCompositions, 165 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 4 ChoiceCompositions, 218 TotalNumberOfCompositions, 14338 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12757, independent: 12645, independent conditional: 0, independent unconditional: 12645, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8128, independent: 8077, independent conditional: 0, independent unconditional: 8077, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8128, independent: 7967, independent conditional: 0, independent unconditional: 7967, dependent: 161, dependent conditional: 0, dependent unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 161, independent: 110, independent conditional: 0, independent unconditional: 110, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 215, independent: 101, independent conditional: 0, independent unconditional: 101, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12757, independent: 4568, independent conditional: 0, independent unconditional: 4568, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 8128, unknown conditional: 0, unknown unconditional: 8128] , Statistics on independence cache: Total cache size (in pairs): 193, Positive cache size: 183, Positive conditional cache size: 0, Positive unconditional cache size: 183, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - DataRaceFoundResult [Line: 725]: Data race detected Data race detected The following path leads to a data race: [L683] 0 int i, j; [L686] 0 int p, q; [L703] 0 int cur = 1, prev = 0, next = 0; [L704] 0 int x; [L714] 0 pthread_t id1, id2; [L716] 0 i = 1 [L719] 0 j = 1 [L721] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=235, arg={0:0}, argc=235, argv={236:237}, argv={236:237}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, pthread_create(&id1, ((void *)0), t1, ((void *)0))=-2, q=0, x=0] [L688] 1 p = 0 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L722] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=235, arg={0:0}, arg={0:0}, arg={0:0}, argc=235, argv={236:237}, argv={236:237}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, pthread_create(&id2, ((void *)0), t2, ((void *)0))=-1, q=0, x=0] [L723] CALL, EXPR 0 fib() [L706] 0 x = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] 0 x < 12 [L706] COND TRUE 0 x < 12 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] 0 x < 12 [L706] COND TRUE 0 x < 12 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] 0 x < 12 [L706] COND TRUE 0 x < 12 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] 0 x < 12 [L706] COND TRUE 0 x < 12 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] 0 x < 12 [L706] COND TRUE 0 x < 12 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] 0 x < 12 [L706] COND TRUE 0 x < 12 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] 0 x < 12 [L706] COND TRUE 0 x < 12 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] 0 x < 12 [L706] COND TRUE 0 x < 12 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] 0 x < 12 [L706] COND TRUE 0 x < 12 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] 0 x < 12 [L706] COND TRUE 0 x < 12 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] 0 x < 12 [L706] COND TRUE 0 x < 12 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] 0 x < 12 [L706] COND TRUE 0 x < 12 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] 0 x < 12 [L706] COND FALSE 0 !(x < 12) [L711] 0 return prev; [L723] RET, EXPR 0 fib() [L723] 0 int correct = fib(); [L725] 0 i < correct VAL [\old(argc)=235, arg={0:0}, arg={0:0}, arg={0:0}, argc=235, argv={236:237}, argv={236:237}, correct=144, cur=233, i=1, id1={5:0}, id2={3:0}, j=1, next=233, p=0, prev=144, q=0, x=12] [L688] 1 p < 5 [L688] COND TRUE 1 p < 5 [L690] 1 i += j [L688] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=2, j=1, next=233, p=1, prev=144, q=0, x=12] [L725] 0 i < correct VAL [\old(argc)=235, arg={0:0}, arg={0:0}, arg={0:0}, argc=235, argv={236:237}, argv={236:237}, correct=144, cur=233, i=2, id1={5:0}, id2={3:0}, j=1, next=233, p=1, prev=144, q=0, x=12] Now there is a data race on ~i~0 between C: i += j [690] and C: i < correct [725] - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 246 locations, 46 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 7, TraceHistogramMax: 12, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 366 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 366 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 322 IncrementalHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 18 mSDtfsCounter, 322 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 73 SyntacticMatches, 10 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2122occurred in iteration=0, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 40 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 707 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 1/200 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 23:56:16,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ec651a-a0b5-4c5e-bb53-c04e260460e7/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE