./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/45_monabsex1_vs-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7381451d-26d0-40bf-a29f-f2628ddbde6b/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7381451d-26d0-40bf-a29f-f2628ddbde6b/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_7381451d-26d0-40bf-a29f-f2628ddbde6b/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7381451d-26d0-40bf-a29f-f2628ddbde6b/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/45_monabsex1_vs-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7381451d-26d0-40bf-a29f-f2628ddbde6b/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_7381451d-26d0-40bf-a29f-f2628ddbde6b/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 8f6daa714ad29a28643c70bea2be7f060091d3c3adf6e85890e4056205fd8d77 --- 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 23:31:24,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:31:24,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:31:24,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:31:24,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:31:24,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:31:24,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:31:24,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:31:24,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:31:24,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:31:24,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:31:24,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:31:24,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:31:24,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:31:24,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:31:24,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:31:24,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:31:24,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:31:24,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:31:24,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:31:24,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:31:24,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:31:24,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:31:24,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:31:24,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:31:24,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:31:24,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:31:24,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:31:24,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:31:24,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:31:24,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:31:24,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:31:24,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:31:24,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:31:24,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:31:24,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:31:24,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:31:24,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:31:24,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:31:24,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:31:24,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:31:24,745 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7381451d-26d0-40bf-a29f-f2628ddbde6b/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-25 23:31:24,769 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:31:24,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:31:24,770 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:31:24,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:31:24,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:31:24,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:31:24,771 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:31:24,772 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:31:24,772 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:31:24,772 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:31:24,772 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:31:24,773 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:31:24,773 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:31:24,773 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:31:24,773 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:31:24,774 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:31:24,774 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:31:24,774 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:31:24,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:31:24,775 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:31:24,776 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:31:24,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:31:24,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:31:24,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:31:24,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:31:24,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:31:24,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:31:24,778 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 23:31:24,778 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:31:24,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:31:24,778 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:31:24,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:31:24,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:31:24,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:31:24,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:31:24,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:31:24,780 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:31:24,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:31:24,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:31:24,781 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:31:24,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:31:24,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:31:24,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:31:24,782 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_7381451d-26d0-40bf-a29f-f2628ddbde6b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7381451d-26d0-40bf-a29f-f2628ddbde6b/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f6daa714ad29a28643c70bea2be7f060091d3c3adf6e85890e4056205fd8d77 [2022-11-25 23:31:25,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:31:25,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:31:25,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:31:25,074 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:31:25,074 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:31:25,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7381451d-26d0-40bf-a29f-f2628ddbde6b/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-ext/45_monabsex1_vs-b.i [2022-11-25 23:31:28,171 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:31:28,412 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:31:28,413 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7381451d-26d0-40bf-a29f-f2628ddbde6b/sv-benchmarks/c/pthread-ext/45_monabsex1_vs-b.i [2022-11-25 23:31:28,428 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7381451d-26d0-40bf-a29f-f2628ddbde6b/bin/utaipan-ByfvJB40ur/data/d7ea1efa1/4216dffd45c44288bdc8f6a38075c6f7/FLAGabb965bd9 [2022-11-25 23:31:28,447 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7381451d-26d0-40bf-a29f-f2628ddbde6b/bin/utaipan-ByfvJB40ur/data/d7ea1efa1/4216dffd45c44288bdc8f6a38075c6f7 [2022-11-25 23:31:28,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:31:28,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:31:28,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:31:28,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:31:28,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:31:28,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:31:28" (1/1) ... [2022-11-25 23:31:28,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d522fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:28, skipping insertion in model container [2022-11-25 23:31:28,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:31:28" (1/1) ... [2022-11-25 23:31:28,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:31:28,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:31:28,974 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_7381451d-26d0-40bf-a29f-f2628ddbde6b/sv-benchmarks/c/pthread-ext/45_monabsex1_vs-b.i[30010,30023] [2022-11-25 23:31:28,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:31:28,998 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:31:29,045 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_7381451d-26d0-40bf-a29f-f2628ddbde6b/sv-benchmarks/c/pthread-ext/45_monabsex1_vs-b.i[30010,30023] [2022-11-25 23:31:29,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:31:29,077 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:31:29,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:29 WrapperNode [2022-11-25 23:31:29,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:31:29,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:31:29,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:31:29,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:31:29,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:29" (1/1) ... [2022-11-25 23:31:29,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:29" (1/1) ... [2022-11-25 23:31:29,120 INFO L138 Inliner]: procedures = 167, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-25 23:31:29,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:31:29,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:31:29,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:31:29,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:31:29,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:29" (1/1) ... [2022-11-25 23:31:29,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:29" (1/1) ... [2022-11-25 23:31:29,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:29" (1/1) ... [2022-11-25 23:31:29,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:29" (1/1) ... [2022-11-25 23:31:29,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:29" (1/1) ... [2022-11-25 23:31:29,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:29" (1/1) ... [2022-11-25 23:31:29,163 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:29" (1/1) ... [2022-11-25 23:31:29,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:29" (1/1) ... [2022-11-25 23:31:29,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:31:29,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:31:29,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:31:29,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:31:29,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:29" (1/1) ... [2022-11-25 23:31:29,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:31:29,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7381451d-26d0-40bf-a29f-f2628ddbde6b/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:31:29,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7381451d-26d0-40bf-a29f-f2628ddbde6b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:31:29,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7381451d-26d0-40bf-a29f-f2628ddbde6b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:31:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-25 23:31:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-25 23:31:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:31:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:31:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:31:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:31:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:31:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:31:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:31:29,244 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 23:31:29,360 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:31:29,363 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:31:29,537 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:31:29,544 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:31:29,544 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:31:29,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:31:29 BoogieIcfgContainer [2022-11-25 23:31:29,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:31:29,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:31:29,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:31:29,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:31:29,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:31:28" (1/3) ... [2022-11-25 23:31:29,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18364aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:31:29, skipping insertion in model container [2022-11-25 23:31:29,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:29" (2/3) ... [2022-11-25 23:31:29,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18364aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:31:29, skipping insertion in model container [2022-11-25 23:31:29,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:31:29" (3/3) ... [2022-11-25 23:31:29,570 INFO L112 eAbstractionObserver]: Analyzing ICFG 45_monabsex1_vs-b.i [2022-11-25 23:31:29,581 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 23:31:29,592 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:31:29,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-25 23:31:29,593 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 23:31:29,638 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 23:31:29,671 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 23:31:29,685 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 57 transitions, 119 flow [2022-11-25 23:31:29,688 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 57 transitions, 119 flow [2022-11-25 23:31:29,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 57 transitions, 119 flow [2022-11-25 23:31:29,729 INFO L130 PetriNetUnfolder]: 3/68 cut-off events. [2022-11-25 23:31:29,730 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 23:31:29,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 68 events. 3/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 33. Up to 4 conditions per place. [2022-11-25 23:31:29,736 INFO L119 LiptonReduction]: Number of co-enabled transitions 560 [2022-11-25 23:31:31,311 INFO L134 LiptonReduction]: Checked pairs total: 494 [2022-11-25 23:31:31,311 INFO L136 LiptonReduction]: Total number of compositions: 61 [2022-11-25 23:31:31,323 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 10 transitions, 25 flow [2022-11-25 23:31:31,339 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 23 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 22 states have internal predecessors, (33), 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 23:31:31,370 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:31:31,380 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;@5489fa4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:31:31,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 23:31:31,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 22 states have internal predecessors, (33), 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 23:31:31,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-25 23:31:31,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:31,389 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-25 23:31:31,389 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 23:31:31,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:31,399 INFO L85 PathProgramCache]: Analyzing trace with hash 238, now seen corresponding path program 1 times [2022-11-25 23:31:31,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:31,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265492123] [2022-11-25 23:31:31,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:31,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:31,510 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 23:31:31,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:31:31,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265492123] [2022-11-25 23:31:31,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265492123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:31:31,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:31:31,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 23:31:31,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987987205] [2022-11-25 23:31:31,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:31:31,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:31:31,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:31:31,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:31:31,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:31:31,545 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 22 states have internal predecessors, (33), 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 23:31:31,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:31:31,575 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2022-11-25 23:31:31,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:31:31,579 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 23:31:31,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:31:31,586 INFO L225 Difference]: With dead ends: 11 [2022-11-25 23:31:31,587 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 23:31:31,588 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 23:31:31,592 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:31:31,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:31:31,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 23:31:31,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-25 23:31:31,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 23:31:31,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2022-11-25 23:31:31,626 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 1 [2022-11-25 23:31:31,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:31:31,627 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-11-25 23:31:31,631 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 23:31:31,633 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-11-25 23:31:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:31:31,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:31,634 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-25 23:31:31,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:31:31,634 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 23:31:31,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:31,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1572108006, now seen corresponding path program 1 times [2022-11-25 23:31:31,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:31,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363977984] [2022-11-25 23:31:31,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:31,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:31:31,690 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:31:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:31:31,741 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:31:31,742 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:31:31,744 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2022-11-25 23:31:31,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2022-11-25 23:31:31,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2022-11-25 23:31:31,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2022-11-25 23:31:31,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2022-11-25 23:31:31,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2022-11-25 23:31:31,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:31:31,749 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 23:31:31,751 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 23:31:31,758 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-25 23:31:31,792 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 23:31:31,794 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 23:31:31,795 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 78 transitions, 168 flow [2022-11-25 23:31:31,795 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 78 transitions, 168 flow [2022-11-25 23:31:31,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 168 flow [2022-11-25 23:31:31,830 INFO L130 PetriNetUnfolder]: 5/102 cut-off events. [2022-11-25 23:31:31,830 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 23:31:31,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 102 events. 5/102 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 159 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 69. Up to 6 conditions per place. [2022-11-25 23:31:31,835 INFO L119 LiptonReduction]: Number of co-enabled transitions 1960 [2022-11-25 23:31:33,289 INFO L134 LiptonReduction]: Checked pairs total: 6259 [2022-11-25 23:31:33,290 INFO L136 LiptonReduction]: Total number of compositions: 70 [2022-11-25 23:31:33,292 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 27 transitions, 66 flow [2022-11-25 23:31:33,360 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 529 states, 509 states have (on average 2.848722986247544) internal successors, (1450), 528 states have internal predecessors, (1450), 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 23:31:33,362 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:31:33,363 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;@5489fa4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:31:33,364 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-25 23:31:33,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 529 states, 509 states have (on average 2.848722986247544) internal successors, (1450), 528 states have internal predecessors, (1450), 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 23:31:33,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-25 23:31:33,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:33,370 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-25 23:31:33,370 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 23:31:33,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:33,372 INFO L85 PathProgramCache]: Analyzing trace with hash 404, now seen corresponding path program 1 times [2022-11-25 23:31:33,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:33,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313090515] [2022-11-25 23:31:33,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:33,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:33,401 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 23:31:33,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:31:33,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313090515] [2022-11-25 23:31:33,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313090515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:31:33,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:31:33,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 23:31:33,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819530759] [2022-11-25 23:31:33,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:31:33,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:31:33,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:31:33,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:31:33,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:31:33,415 INFO L87 Difference]: Start difference. First operand has 529 states, 509 states have (on average 2.848722986247544) internal successors, (1450), 528 states have internal predecessors, (1450), 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 23:31:33,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:31:33,472 INFO L93 Difference]: Finished difference Result 444 states and 1115 transitions. [2022-11-25 23:31:33,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:31:33,472 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 23:31:33,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:31:33,481 INFO L225 Difference]: With dead ends: 444 [2022-11-25 23:31:33,481 INFO L226 Difference]: Without dead ends: 444 [2022-11-25 23:31:33,482 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 23:31:33,483 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:31:33,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:31:33,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-11-25 23:31:33,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2022-11-25 23:31:33,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 435 states have (on average 2.5632183908045976) internal successors, (1115), 443 states have internal predecessors, (1115), 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 23:31:33,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 1115 transitions. [2022-11-25 23:31:33,524 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 1115 transitions. Word has length 1 [2022-11-25 23:31:33,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:31:33,524 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 1115 transitions. [2022-11-25 23:31:33,524 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 23:31:33,524 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1115 transitions. [2022-11-25 23:31:33,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:31:33,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:33,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:31:33,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:31:33,526 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 23:31:33,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:33,526 INFO L85 PathProgramCache]: Analyzing trace with hash -924076981, now seen corresponding path program 1 times [2022-11-25 23:31:33,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:33,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728298898] [2022-11-25 23:31:33,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:33,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:33,592 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 23:31:33,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:31:33,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728298898] [2022-11-25 23:31:33,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728298898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:31:33,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:31:33,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:31:33,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946894816] [2022-11-25 23:31:33,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:31:33,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:31:33,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:31:33,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:31:33,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:33,595 INFO L87 Difference]: Start difference. First operand 444 states and 1115 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:31:33,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:31:33,651 INFO L93 Difference]: Finished difference Result 465 states and 1172 transitions. [2022-11-25 23:31:33,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:31:33,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 23:31:33,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:31:33,657 INFO L225 Difference]: With dead ends: 465 [2022-11-25 23:31:33,657 INFO L226 Difference]: Without dead ends: 465 [2022-11-25 23:31:33,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:33,658 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:31:33,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 18 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:31:33,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-11-25 23:31:33,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 465. [2022-11-25 23:31:33,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 456 states have (on average 2.5701754385964914) internal successors, (1172), 464 states have internal predecessors, (1172), 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 23:31:33,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 1172 transitions. [2022-11-25 23:31:33,690 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 1172 transitions. Word has length 6 [2022-11-25 23:31:33,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:31:33,690 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 1172 transitions. [2022-11-25 23:31:33,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:31:33,691 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 1172 transitions. [2022-11-25 23:31:33,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 23:31:33,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:33,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:31:33,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:31:33,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 23:31:33,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:33,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1020279327, now seen corresponding path program 1 times [2022-11-25 23:31:33,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:33,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397651997] [2022-11-25 23:31:33,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:33,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:33,736 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 23:31:33,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:31:33,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397651997] [2022-11-25 23:31:33,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397651997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:31:33,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:31:33,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:31:33,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634362475] [2022-11-25 23:31:33,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:31:33,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:31:33,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:31:33,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:31:33,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:33,739 INFO L87 Difference]: Start difference. First operand 465 states and 1172 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 23:31:33,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:31:33,799 INFO L93 Difference]: Finished difference Result 496 states and 1207 transitions. [2022-11-25 23:31:33,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:31:33,800 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 23:31:33,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:31:33,804 INFO L225 Difference]: With dead ends: 496 [2022-11-25 23:31:33,804 INFO L226 Difference]: Without dead ends: 496 [2022-11-25 23:31:33,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:33,805 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 15 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:31:33,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 18 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:31:33,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-11-25 23:31:33,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 446. [2022-11-25 23:31:33,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 439 states have (on average 2.4874715261959) internal successors, (1092), 445 states have internal predecessors, (1092), 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 23:31:33,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 1092 transitions. [2022-11-25 23:31:33,827 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 1092 transitions. Word has length 8 [2022-11-25 23:31:33,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:31:33,827 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 1092 transitions. [2022-11-25 23:31:33,827 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 23:31:33,828 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 1092 transitions. [2022-11-25 23:31:33,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:31:33,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:33,845 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:31:33,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:31:33,846 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 23:31:33,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:33,846 INFO L85 PathProgramCache]: Analyzing trace with hash -544435224, now seen corresponding path program 1 times [2022-11-25 23:31:33,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:33,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245739039] [2022-11-25 23:31:33,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:33,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:31:33,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:31:33,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245739039] [2022-11-25 23:31:33,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245739039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:31:33,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:31:33,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:31:33,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650566129] [2022-11-25 23:31:33,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:31:33,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:31:33,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:31:33,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:31:33,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:33,897 INFO L87 Difference]: Start difference. First operand 446 states and 1092 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:31:33,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:31:33,939 INFO L93 Difference]: Finished difference Result 456 states and 1110 transitions. [2022-11-25 23:31:33,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:31:33,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-25 23:31:33,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:31:33,943 INFO L225 Difference]: With dead ends: 456 [2022-11-25 23:31:33,943 INFO L226 Difference]: Without dead ends: 456 [2022-11-25 23:31:33,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:33,944 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:31:33,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 17 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:31:33,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-11-25 23:31:33,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 431. [2022-11-25 23:31:33,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 426 states have (on average 2.4530516431924885) internal successors, (1045), 430 states have internal predecessors, (1045), 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 23:31:33,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 1045 transitions. [2022-11-25 23:31:33,965 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 1045 transitions. Word has length 10 [2022-11-25 23:31:33,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:31:33,965 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 1045 transitions. [2022-11-25 23:31:33,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:31:33,965 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 1045 transitions. [2022-11-25 23:31:33,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:31:33,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:33,967 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-25 23:31:33,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:31:33,967 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 23:31:33,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:33,968 INFO L85 PathProgramCache]: Analyzing trace with hash 299154911, now seen corresponding path program 1 times [2022-11-25 23:31:33,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:33,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094979087] [2022-11-25 23:31:33,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:33,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:31:33,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:31:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:31:34,000 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:31:34,000 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:31:34,001 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2022-11-25 23:31:34,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2022-11-25 23:31:34,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2022-11-25 23:31:34,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2022-11-25 23:31:34,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2022-11-25 23:31:34,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-11-25 23:31:34,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-11-25 23:31:34,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-11-25 23:31:34,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:31:34,003 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-25 23:31:34,004 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 23:31:34,004 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-25 23:31:34,022 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 23:31:34,025 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 23:31:34,025 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 99 transitions, 219 flow [2022-11-25 23:31:34,025 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 99 transitions, 219 flow [2022-11-25 23:31:34,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 99 transitions, 219 flow [2022-11-25 23:31:34,053 INFO L130 PetriNetUnfolder]: 7/136 cut-off events. [2022-11-25 23:31:34,053 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-25 23:31:34,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 136 events. 7/136 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 271 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 106. Up to 8 conditions per place. [2022-11-25 23:31:34,058 INFO L119 LiptonReduction]: Number of co-enabled transitions 4200 [2022-11-25 23:31:35,698 INFO L134 LiptonReduction]: Checked pairs total: 14055 [2022-11-25 23:31:35,699 INFO L136 LiptonReduction]: Total number of compositions: 87 [2022-11-25 23:31:35,699 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 37 transitions, 95 flow [2022-11-25 23:31:35,877 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4814 states, 4750 states have (on average 3.7917894736842106) internal successors, (18011), 4813 states have internal predecessors, (18011), 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 23:31:35,878 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:31:35,879 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;@5489fa4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:31:35,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-25 23:31:35,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 4814 states, 4750 states have (on average 3.7917894736842106) internal successors, (18011), 4813 states have internal predecessors, (18011), 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 23:31:35,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-25 23:31:35,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:35,896 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-25 23:31:35,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 23:31:35,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:35,897 INFO L85 PathProgramCache]: Analyzing trace with hash 611, now seen corresponding path program 1 times [2022-11-25 23:31:35,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:35,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331678710] [2022-11-25 23:31:35,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:35,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:35,905 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 23:31:35,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:31:35,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331678710] [2022-11-25 23:31:35,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331678710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:31:35,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:31:35,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 23:31:35,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240414392] [2022-11-25 23:31:35,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:31:35,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:31:35,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:31:35,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:31:35,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:31:35,923 INFO L87 Difference]: Start difference. First operand has 4814 states, 4750 states have (on average 3.7917894736842106) internal successors, (18011), 4813 states have internal predecessors, (18011), 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 23:31:36,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:31:36,000 INFO L93 Difference]: Finished difference Result 4008 states and 13607 transitions. [2022-11-25 23:31:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:31:36,001 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 23:31:36,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:31:36,033 INFO L225 Difference]: With dead ends: 4008 [2022-11-25 23:31:36,033 INFO L226 Difference]: Without dead ends: 4008 [2022-11-25 23:31:36,033 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 23:31:36,034 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:31:36,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:31:36,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4008 states. [2022-11-25 23:31:36,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4008 to 4008. [2022-11-25 23:31:36,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4008 states, 3981 states have (on average 3.4179854307962825) internal successors, (13607), 4007 states have internal predecessors, (13607), 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 23:31:36,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 13607 transitions. [2022-11-25 23:31:36,326 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 13607 transitions. Word has length 1 [2022-11-25 23:31:36,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:31:36,326 INFO L495 AbstractCegarLoop]: Abstraction has 4008 states and 13607 transitions. [2022-11-25 23:31:36,327 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 23:31:36,327 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 13607 transitions. [2022-11-25 23:31:36,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:31:36,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:36,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:31:36,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:31:36,328 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 23:31:36,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:36,329 INFO L85 PathProgramCache]: Analyzing trace with hash 814606513, now seen corresponding path program 1 times [2022-11-25 23:31:36,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:36,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388087423] [2022-11-25 23:31:36,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:36,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:36,355 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 23:31:36,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:31:36,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388087423] [2022-11-25 23:31:36,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388087423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:31:36,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:31:36,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:31:36,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720853524] [2022-11-25 23:31:36,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:31:36,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:31:36,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:31:36,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:31:36,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:36,357 INFO L87 Difference]: Start difference. First operand 4008 states and 13607 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:31:36,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:31:36,481 INFO L93 Difference]: Finished difference Result 4389 states and 14952 transitions. [2022-11-25 23:31:36,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:31:36,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 23:31:36,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:31:36,517 INFO L225 Difference]: With dead ends: 4389 [2022-11-25 23:31:36,517 INFO L226 Difference]: Without dead ends: 4389 [2022-11-25 23:31:36,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:36,523 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:31:36,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 24 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:31:36,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4389 states. [2022-11-25 23:31:36,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4389 to 4389. [2022-11-25 23:31:36,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4389 states, 4362 states have (on average 3.4277854195323245) internal successors, (14952), 4388 states have internal predecessors, (14952), 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 23:31:36,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4389 states to 4389 states and 14952 transitions. [2022-11-25 23:31:36,771 INFO L78 Accepts]: Start accepts. Automaton has 4389 states and 14952 transitions. Word has length 6 [2022-11-25 23:31:36,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:31:36,771 INFO L495 AbstractCegarLoop]: Abstraction has 4389 states and 14952 transitions. [2022-11-25 23:31:36,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:31:36,772 INFO L276 IsEmpty]: Start isEmpty. Operand 4389 states and 14952 transitions. [2022-11-25 23:31:36,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 23:31:36,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:36,775 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:31:36,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:31:36,775 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 23:31:36,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:36,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1152874116, now seen corresponding path program 1 times [2022-11-25 23:31:36,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:36,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573052219] [2022-11-25 23:31:36,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:36,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:36,841 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 23:31:36,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:31:36,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573052219] [2022-11-25 23:31:36,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573052219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:31:36,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:31:36,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:31:36,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499629441] [2022-11-25 23:31:36,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:31:36,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:31:36,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:31:36,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:31:36,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:36,844 INFO L87 Difference]: Start difference. First operand 4389 states and 14952 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 23:31:36,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:31:36,971 INFO L93 Difference]: Finished difference Result 5778 states and 18831 transitions. [2022-11-25 23:31:36,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:31:36,972 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 23:31:36,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:31:37,098 INFO L225 Difference]: With dead ends: 5778 [2022-11-25 23:31:37,098 INFO L226 Difference]: Without dead ends: 5778 [2022-11-25 23:31:37,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:37,099 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 21 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:31:37,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 22 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:31:37,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5778 states. [2022-11-25 23:31:37,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5778 to 4768. [2022-11-25 23:31:37,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4768 states, 4743 states have (on average 3.324899852414084) internal successors, (15770), 4767 states have internal predecessors, (15770), 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 23:31:37,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4768 states to 4768 states and 15770 transitions. [2022-11-25 23:31:37,329 INFO L78 Accepts]: Start accepts. Automaton has 4768 states and 15770 transitions. Word has length 8 [2022-11-25 23:31:37,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:31:37,329 INFO L495 AbstractCegarLoop]: Abstraction has 4768 states and 15770 transitions. [2022-11-25 23:31:37,330 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 23:31:37,330 INFO L276 IsEmpty]: Start isEmpty. Operand 4768 states and 15770 transitions. [2022-11-25 23:31:37,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:31:37,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:37,331 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:31:37,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 23:31:37,332 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 23:31:37,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:37,333 INFO L85 PathProgramCache]: Analyzing trace with hash -444941878, now seen corresponding path program 1 times [2022-11-25 23:31:37,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:37,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977311994] [2022-11-25 23:31:37,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:37,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:37,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:31:37,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:31:37,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977311994] [2022-11-25 23:31:37,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977311994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:31:37,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:31:37,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:31:37,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207341277] [2022-11-25 23:31:37,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:31:37,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:31:37,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:31:37,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:31:37,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:37,366 INFO L87 Difference]: Start difference. First operand 4768 states and 15770 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:31:37,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:31:37,472 INFO L93 Difference]: Finished difference Result 4901 states and 16161 transitions. [2022-11-25 23:31:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:31:37,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-25 23:31:37,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:31:37,496 INFO L225 Difference]: With dead ends: 4901 [2022-11-25 23:31:37,496 INFO L226 Difference]: Without dead ends: 4901 [2022-11-25 23:31:37,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:37,498 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:31:37,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 22 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:31:37,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4901 states. [2022-11-25 23:31:37,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4901 to 4901. [2022-11-25 23:31:37,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4901 states, 4878 states have (on average 3.3130381303813037) internal successors, (16161), 4900 states have internal predecessors, (16161), 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 23:31:37,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4901 states to 4901 states and 16161 transitions. [2022-11-25 23:31:37,765 INFO L78 Accepts]: Start accepts. Automaton has 4901 states and 16161 transitions. Word has length 10 [2022-11-25 23:31:37,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:31:37,766 INFO L495 AbstractCegarLoop]: Abstraction has 4901 states and 16161 transitions. [2022-11-25 23:31:37,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:31:37,766 INFO L276 IsEmpty]: Start isEmpty. Operand 4901 states and 16161 transitions. [2022-11-25 23:31:37,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 23:31:37,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:37,782 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:31:37,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 23:31:37,783 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 23:31:37,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:37,783 INFO L85 PathProgramCache]: Analyzing trace with hash 529307356, now seen corresponding path program 1 times [2022-11-25 23:31:37,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:37,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476916874] [2022-11-25 23:31:37,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:37,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:31:37,797 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:31:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:31:37,823 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:31:37,823 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:31:37,823 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2022-11-25 23:31:37,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2022-11-25 23:31:37,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2022-11-25 23:31:37,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2022-11-25 23:31:37,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-11-25 23:31:37,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2022-11-25 23:31:37,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2022-11-25 23:31:37,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2022-11-25 23:31:37,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2022-11-25 23:31:37,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2022-11-25 23:31:37,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 23:31:37,839 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-25 23:31:37,844 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2022-11-25 23:31:37,845 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:31:37,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:31:37 BasicIcfg [2022-11-25 23:31:37,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:31:37,904 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:31:37,904 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:31:37,904 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:31:37,905 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:31:29" (3/4) ... [2022-11-25 23:31:37,920 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:31:37,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:31:37,921 INFO L158 Benchmark]: Toolchain (without parser) took 9465.35ms. Allocated memory was 159.4MB in the beginning and 343.9MB in the end (delta: 184.5MB). Free memory was 120.4MB in the beginning and 192.2MB in the end (delta: -71.8MB). Peak memory consumption was 112.8MB. Max. memory is 16.1GB. [2022-11-25 23:31:37,921 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:31:37,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 617.85ms. Allocated memory is still 159.4MB. Free memory was 119.8MB in the beginning and 116.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:31:37,922 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.93ms. Allocated memory is still 159.4MB. Free memory was 116.6MB in the beginning and 114.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:31:37,922 INFO L158 Benchmark]: Boogie Preprocessor took 45.18ms. Allocated memory is still 159.4MB. Free memory was 114.5MB in the beginning and 113.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:31:37,923 INFO L158 Benchmark]: RCFGBuilder took 394.52ms. Allocated memory is still 159.4MB. Free memory was 113.1MB in the beginning and 101.2MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 23:31:37,923 INFO L158 Benchmark]: TraceAbstraction took 8339.51ms. Allocated memory was 159.4MB in the beginning and 343.9MB in the end (delta: 184.5MB). Free memory was 100.5MB in the beginning and 192.2MB in the end (delta: -91.7MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. [2022-11-25 23:31:37,923 INFO L158 Benchmark]: Witness Printer took 16.69ms. Allocated memory is still 343.9MB. Free memory is still 192.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:31:37,925 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 617.85ms. Allocated memory is still 159.4MB. Free memory was 119.8MB in the beginning and 116.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.93ms. Allocated memory is still 159.4MB. Free memory was 116.6MB in the beginning and 114.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.18ms. Allocated memory is still 159.4MB. Free memory was 114.5MB in the beginning and 113.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 394.52ms. Allocated memory is still 159.4MB. Free memory was 113.1MB in the beginning and 101.2MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8339.51ms. Allocated memory was 159.4MB in the beginning and 343.9MB in the end (delta: 184.5MB). Free memory was 100.5MB in the beginning and 192.2MB in the end (delta: -91.7MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. * Witness Printer took 16.69ms. Allocated memory is still 343.9MB. Free memory is still 192.2MB. 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: 1.6s, 58 PlacesBefore, 13 PlacesAfterwards, 57 TransitionsBefore, 10 TransitionsAfterwards, 560 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 61 TotalNumberOfCompositions, 494 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 494, independent: 494, independent conditional: 0, independent unconditional: 494, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 375, independent: 375, independent conditional: 0, independent unconditional: 375, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 375, independent: 375, independent conditional: 0, independent unconditional: 375, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 494, independent: 119, independent conditional: 0, independent unconditional: 119, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 375, unknown conditional: 0, unknown unconditional: 375] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 80 PlacesBefore, 30 PlacesAfterwards, 78 TransitionsBefore, 27 TransitionsAfterwards, 1960 CoEnabledTransitionPairs, 8 FixpointIterations, 24 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 70 TotalNumberOfCompositions, 6259 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3278, independent: 3038, independent conditional: 0, independent unconditional: 3038, dependent: 240, dependent conditional: 0, dependent unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1402, independent: 1362, independent conditional: 0, independent unconditional: 1362, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1402, independent: 1308, independent conditional: 0, independent unconditional: 1308, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 94, independent: 54, independent conditional: 0, independent unconditional: 54, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 108, independent: 42, independent conditional: 0, independent unconditional: 42, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3278, independent: 1676, independent conditional: 0, independent unconditional: 1676, dependent: 200, dependent conditional: 0, dependent unconditional: 200, unknown: 1402, unknown conditional: 0, unknown unconditional: 1402] , Statistics on independence cache: Total cache size (in pairs): 147, Positive cache size: 127, Positive conditional cache size: 0, Positive unconditional cache size: 127, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, 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 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 102 PlacesBefore, 41 PlacesAfterwards, 99 TransitionsBefore, 37 TransitionsAfterwards, 4200 CoEnabledTransitionPairs, 7 FixpointIterations, 23 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 1 ChoiceCompositions, 87 TotalNumberOfCompositions, 14055 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5740, independent: 5411, independent conditional: 0, independent unconditional: 5411, dependent: 329, dependent conditional: 0, dependent unconditional: 329, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3125, independent: 3056, independent conditional: 0, independent unconditional: 3056, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3125, independent: 2900, independent conditional: 0, independent unconditional: 2900, dependent: 225, dependent conditional: 0, dependent unconditional: 225, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 225, independent: 156, independent conditional: 0, independent unconditional: 156, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 174, independent: 93, independent conditional: 0, independent unconditional: 93, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5740, independent: 2355, independent conditional: 0, independent unconditional: 2355, dependent: 260, dependent conditional: 0, dependent unconditional: 260, unknown: 3125, unknown conditional: 0, unknown unconditional: 3125] , Statistics on independence cache: Total cache size (in pairs): 251, Positive cache size: 212, Positive conditional cache size: 0, Positive unconditional cache size: 212, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, 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: 690]: Data race detected Data race detected The following path leads to a data race: [L685] 0 int s; [L696] 0 s = __VERIFIER_nondet_int() [L697] 0 pthread_t t; VAL [s=0, t={3:0}] [L698] COND TRUE 0 1 [L698] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, pthread_create(&t, 0, thr1, 0)=-1, s=0, t={3:0}] [L688] 1 int l = __VERIFIER_nondet_int(); [L689] 1 l = 4 [L690] 1 s = l VAL [arg={0:0}, arg={0:0}, l=4, s=4, s = l=49] [L698] COND TRUE 0 1 [L698] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, arg={0:0}, l=4, pthread_create(&t, 0, thr1, 0)=0, s=4, s = l=49, t={3:0}] [L688] 2 int l = __VERIFIER_nondet_int(); [L689] 2 l = 4 [L690] 2 s = l VAL [arg={0:0}, arg={0:0}, l=4, s=4, s = l=49] Now there is a data race on ~s~0 between C: s = __VERIFIER_nondet_int() [696] and C: s = l [690] - UnprovableResult [Line: 691]: 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 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 76 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 96 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 132 IncrementalHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 56 mSDtfsCounter, 132 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=529occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 75 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 116 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 84 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 205 IncrementalHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 75 mSDtfsCounter, 205 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4901occurred in iteration=4, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1010 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 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 23:31:38,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7381451d-26d0-40bf-a29f-f2628ddbde6b/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