./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_ok_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_97803f48-3567-4f60-9428-00349504ebca/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97803f48-3567-4f60-9428-00349504ebca/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97803f48-3567-4f60-9428-00349504ebca/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97803f48-3567-4f60-9428-00349504ebca/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/queue_ok_longer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97803f48-3567-4f60-9428-00349504ebca/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97803f48-3567-4f60-9428-00349504ebca/bin/utaipan-I9t0OCRTmS --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 f58af1aa15d4bec1241042c84c595fb9585ff7c461dd0b44f9fde0638838779a --- 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-8393723 [2022-11-19 06:58:05,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:58:05,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:58:05,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:58:05,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:58:05,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:58:05,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:58:05,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:58:05,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:58:05,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:58:05,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:58:05,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:58:05,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:58:05,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:58:05,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:58:05,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:58:05,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:58:05,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:58:05,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:58:05,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:58:05,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:58:05,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:58:05,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:58:05,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:58:05,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:58:05,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:58:05,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:58:05,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:58:05,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:58:05,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:58:05,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:58:05,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:58:05,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:58:05,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:58:05,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:58:05,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:58:05,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:58:05,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:58:05,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:58:05,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:58:05,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:58:05,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97803f48-3567-4f60-9428-00349504ebca/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-19 06:58:05,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:58:05,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:58:05,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:58:05,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:58:05,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:58:05,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:58:05,844 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:58:05,844 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:58:05,844 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:58:05,844 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:58:05,845 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:58:05,845 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:58:05,846 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:58:05,846 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:58:05,846 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:58:05,846 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:58:05,846 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:58:05,847 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:58:05,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:58:05,847 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:58:05,848 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 06:58:05,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:58:05,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:58:05,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:58:05,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:58:05,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:58:05,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:58:05,849 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-19 06:58:05,849 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:58:05,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:58:05,849 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:58:05,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:58:05,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:58:05,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:58:05,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:58:05,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:58:05,851 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:58:05,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:58:05,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:58:05,851 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:58:05,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:58:05,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:58:05,852 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:58:05,852 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_97803f48-3567-4f60-9428-00349504ebca/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97803f48-3567-4f60-9428-00349504ebca/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f58af1aa15d4bec1241042c84c595fb9585ff7c461dd0b44f9fde0638838779a [2022-11-19 06:58:06,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:58:06,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:58:06,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:58:06,130 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:58:06,132 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:58:06,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97803f48-3567-4f60-9428-00349504ebca/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread/queue_ok_longer.i [2022-11-19 06:58:06,213 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97803f48-3567-4f60-9428-00349504ebca/bin/utaipan-I9t0OCRTmS/data/5ecacb0b0/e7e8ebefc73f4e2c8d3b221c8567cc2f/FLAGc5d9f62c3 [2022-11-19 06:58:06,799 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:58:06,799 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97803f48-3567-4f60-9428-00349504ebca/sv-benchmarks/c/pthread/queue_ok_longer.i [2022-11-19 06:58:06,819 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97803f48-3567-4f60-9428-00349504ebca/bin/utaipan-I9t0OCRTmS/data/5ecacb0b0/e7e8ebefc73f4e2c8d3b221c8567cc2f/FLAGc5d9f62c3 [2022-11-19 06:58:07,049 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97803f48-3567-4f60-9428-00349504ebca/bin/utaipan-I9t0OCRTmS/data/5ecacb0b0/e7e8ebefc73f4e2c8d3b221c8567cc2f [2022-11-19 06:58:07,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:58:07,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:58:07,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:58:07,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:58:07,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:58:07,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:07,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1965f417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07, skipping insertion in model container [2022-11-19 06:58:07,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:07,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:58:07,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:58:07,701 WARN L234 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_97803f48-3567-4f60-9428-00349504ebca/sv-benchmarks/c/pthread/queue_ok_longer.i[43272,43285] [2022-11-19 06:58:07,710 WARN L234 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_97803f48-3567-4f60-9428-00349504ebca/sv-benchmarks/c/pthread/queue_ok_longer.i[43545,43558] [2022-11-19 06:58:07,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:58:07,727 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:58:07,778 WARN L234 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_97803f48-3567-4f60-9428-00349504ebca/sv-benchmarks/c/pthread/queue_ok_longer.i[43272,43285] [2022-11-19 06:58:07,781 WARN L234 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_97803f48-3567-4f60-9428-00349504ebca/sv-benchmarks/c/pthread/queue_ok_longer.i[43545,43558] [2022-11-19 06:58:07,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:58:07,849 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:58:07,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07 WrapperNode [2022-11-19 06:58:07,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:58:07,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:58:07,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:58:07,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:58:07,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:07,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:07,986 INFO L138 Inliner]: procedures = 274, calls = 57, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 387 [2022-11-19 06:58:07,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:58:07,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:58:07,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:58:07,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:58:07,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:07,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:08,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:08,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:08,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:08,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:08,044 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:08,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:08,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:58:08,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:58:08,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:58:08,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:58:08,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:08,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:58:08,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97803f48-3567-4f60-9428-00349504ebca/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:58:08,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97803f48-3567-4f60-9428-00349504ebca/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:58:08,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97803f48-3567-4f60-9428-00349504ebca/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:58:08,148 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-19 06:58:08,149 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-19 06:58:08,149 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-19 06:58:08,149 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-19 06:58:08,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:58:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:58:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:58:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:58:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-19 06:58:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:58:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:58:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:58:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:58:08,153 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 06:58:08,334 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:58:08,336 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:58:09,090 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:58:09,101 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:58:09,101 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 06:58:09,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:09 BoogieIcfgContainer [2022-11-19 06:58:09,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:58:09,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:58:09,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:58:09,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:58:09,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:58:07" (1/3) ... [2022-11-19 06:58:09,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2275ad09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:58:09, skipping insertion in model container [2022-11-19 06:58:09,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (2/3) ... [2022-11-19 06:58:09,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2275ad09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:58:09, skipping insertion in model container [2022-11-19 06:58:09,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:09" (3/3) ... [2022-11-19 06:58:09,113 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok_longer.i [2022-11-19 06:58:09,122 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 06:58:09,132 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:58:09,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2022-11-19 06:58:09,133 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 06:58:09,341 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-19 06:58:09,397 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 06:58:09,409 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 441 places, 447 transitions, 910 flow [2022-11-19 06:58:09,412 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 441 places, 447 transitions, 910 flow [2022-11-19 06:58:09,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 447 transitions, 910 flow [2022-11-19 06:58:09,643 INFO L130 PetriNetUnfolder]: 13/445 cut-off events. [2022-11-19 06:58:09,643 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-19 06:58:09,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 445 events. 13/445 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 784 event pairs, 0 based on Foata normal form. 0/397 useless extension candidates. Maximal degree in co-relation 315. Up to 3 conditions per place. [2022-11-19 06:58:09,708 INFO L119 LiptonReduction]: Number of co-enabled transitions 53036 [2022-11-19 06:58:48,597 WARN L233 SmtUtils]: Spent 5.55s on a formula simplification that was a NOOP. DAG size: 185 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 06:58:54,225 WARN L233 SmtUtils]: Spent 5.62s on a formula simplification that was a NOOP. DAG size: 181 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 06:59:14,605 WARN L233 SmtUtils]: Spent 20.03s on a formula simplification. DAG size of input: 231 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 06:59:20,593 WARN L233 SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 207 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 07:00:22,647 WARN L233 SmtUtils]: Spent 1.03m on a formula simplification. DAG size of input: 238 DAG size of output: 225 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 07:00:34,636 WARN L233 SmtUtils]: Spent 11.99s on a formula simplification that was a NOOP. DAG size: 213 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 07:00:34,644 INFO L134 LiptonReduction]: Checked pairs total: 424276 [2022-11-19 07:00:34,645 INFO L136 LiptonReduction]: Total number of compositions: 307 [2022-11-19 07:00:34,652 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 207 places, 208 transitions, 432 flow [2022-11-19 07:00:36,444 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 59684 states, 59273 states have (on average 2.9497241577109308) internal successors, (174839), 59683 states have internal predecessors, (174839), 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) [2022-11-19 07:00:36,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:00:36,487 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;@65cec884, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:00:36,487 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-11-19 07:00:36,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 59684 states, 59273 states have (on average 2.9497241577109308) internal successors, (174839), 59683 states have internal predecessors, (174839), 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) [2022-11-19 07:00:36,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 07:00:36,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:00:36,574 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 07:00:36,575 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-19 07:00:36,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:00:36,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1583, now seen corresponding path program 1 times [2022-11-19 07:00:36,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:00:36,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051672934] [2022-11-19 07:00:36,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:00:36,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:00:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:00:36,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:00:36,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:00:36,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051672934] [2022-11-19 07:00:36,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051672934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:00:36,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:00:36,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 07:00:36,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871239242] [2022-11-19 07:00:36,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:00:36,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:00:36,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:00:36,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:00:36,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:00:36,803 INFO L87 Difference]: Start difference. First operand has 59684 states, 59273 states have (on average 2.9497241577109308) internal successors, (174839), 59683 states have internal predecessors, (174839), 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) [2022-11-19 07:00:38,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:00:38,532 INFO L93 Difference]: Finished difference Result 59677 states and 174192 transitions. [2022-11-19 07:00:38,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:00:38,556 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 [2022-11-19 07:00:38,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:00:39,159 INFO L225 Difference]: With dead ends: 59677 [2022-11-19 07:00:39,159 INFO L226 Difference]: Without dead ends: 59677 [2022-11-19 07:00:39,160 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 [2022-11-19 07:00:39,164 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:00:39,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:00:39,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59677 states. [2022-11-19 07:00:41,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59677 to 59677. [2022-11-19 07:00:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59677 states, 59273 states have (on average 2.9388085637642773) internal successors, (174192), 59676 states have internal predecessors, (174192), 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) [2022-11-19 07:00:42,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59677 states to 59677 states and 174192 transitions. [2022-11-19 07:00:42,646 INFO L78 Accepts]: Start accepts. Automaton has 59677 states and 174192 transitions. Word has length 1 [2022-11-19 07:00:42,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:00:42,647 INFO L495 AbstractCegarLoop]: Abstraction has 59677 states and 174192 transitions. [2022-11-19 07:00:42,647 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) [2022-11-19 07:00:42,649 INFO L276 IsEmpty]: Start isEmpty. Operand 59677 states and 174192 transitions. [2022-11-19 07:00:42,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:00:42,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:00:42,651 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:00:42,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:00:42,656 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-19 07:00:42,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:00:42,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1506147240, now seen corresponding path program 1 times [2022-11-19 07:00:42,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:00:42,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146771710] [2022-11-19 07:00:42,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:00:42,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:00:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:00:42,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:00:42,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:00:42,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146771710] [2022-11-19 07:00:42,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146771710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:00:42,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:00:42,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:00:42,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683854282] [2022-11-19 07:00:42,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:00:42,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:00:42,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:00:42,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:00:42,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:00:42,890 INFO L87 Difference]: Start difference. First operand 59677 states and 174192 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:00:44,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:00:44,321 INFO L93 Difference]: Finished difference Result 62626 states and 180843 transitions. [2022-11-19 07:00:44,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:00:44,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 07:00:44,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:00:44,698 INFO L225 Difference]: With dead ends: 62626 [2022-11-19 07:00:44,698 INFO L226 Difference]: Without dead ends: 62626 [2022-11-19 07:00:44,699 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 [2022-11-19 07:00:44,705 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 182 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:00:44,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 321 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:00:44,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62626 states. [2022-11-19 07:00:46,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62626 to 58995. [2022-11-19 07:00:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58995 states, 58617 states have (on average 2.9381408123923096) internal successors, (172225), 58994 states have internal predecessors, (172225), 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) [2022-11-19 07:00:47,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58995 states to 58995 states and 172225 transitions. [2022-11-19 07:00:47,103 INFO L78 Accepts]: Start accepts. Automaton has 58995 states and 172225 transitions. Word has length 5 [2022-11-19 07:00:47,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:00:47,104 INFO L495 AbstractCegarLoop]: Abstraction has 58995 states and 172225 transitions. [2022-11-19 07:00:47,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:00:47,105 INFO L276 IsEmpty]: Start isEmpty. Operand 58995 states and 172225 transitions. [2022-11-19 07:00:47,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:00:47,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:00:47,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:00:47,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:00:47,108 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-19 07:00:47,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:00:47,109 INFO L85 PathProgramCache]: Analyzing trace with hash 11814953, now seen corresponding path program 1 times [2022-11-19 07:00:47,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:00:47,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171290272] [2022-11-19 07:00:47,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:00:47,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:00:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:00:47,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:00:47,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:00:47,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171290272] [2022-11-19 07:00:47,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171290272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:00:47,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:00:47,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:00:47,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399927266] [2022-11-19 07:00:47,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:00:47,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:00:47,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:00:47,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:00:47,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:00:47,317 INFO L87 Difference]: Start difference. First operand 58995 states and 172225 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:00:47,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:00:47,954 INFO L93 Difference]: Finished difference Result 62313 states and 180049 transitions. [2022-11-19 07:00:47,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:00:47,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-19 07:00:47,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:00:48,250 INFO L225 Difference]: With dead ends: 62313 [2022-11-19 07:00:48,250 INFO L226 Difference]: Without dead ends: 62313 [2022-11-19 07:00:48,250 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 [2022-11-19 07:00:48,252 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 179 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:00:48,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 315 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:00:48,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62313 states. [2022-11-19 07:00:50,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62313 to 58443. [2022-11-19 07:00:50,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58443 states, 58085 states have (on average 2.9377291899802014) internal successors, (170638), 58442 states have internal predecessors, (170638), 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) [2022-11-19 07:00:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58443 states to 58443 states and 170638 transitions. [2022-11-19 07:00:50,802 INFO L78 Accepts]: Start accepts. Automaton has 58443 states and 170638 transitions. Word has length 7 [2022-11-19 07:00:50,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:00:50,802 INFO L495 AbstractCegarLoop]: Abstraction has 58443 states and 170638 transitions. [2022-11-19 07:00:50,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:00:50,803 INFO L276 IsEmpty]: Start isEmpty. Operand 58443 states and 170638 transitions. [2022-11-19 07:00:50,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:00:50,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:00:50,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:00:50,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:00:50,805 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-19 07:00:50,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:00:50,805 INFO L85 PathProgramCache]: Analyzing trace with hash -872011392, now seen corresponding path program 1 times [2022-11-19 07:00:50,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:00:50,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001404763] [2022-11-19 07:00:50,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:00:50,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:00:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:00:50,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:00:50,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:00:50,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001404763] [2022-11-19 07:00:50,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001404763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:00:50,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:00:50,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:00:50,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758541806] [2022-11-19 07:00:50,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:00:50,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:00:50,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:00:50,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:00:50,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:00:50,988 INFO L87 Difference]: Start difference. First operand 58443 states and 170638 transitions. Second operand has 3 states, 3 states have (on average 3.0) 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) [2022-11-19 07:00:51,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:00:51,683 INFO L93 Difference]: Finished difference Result 105675 states and 308592 transitions. [2022-11-19 07:00:51,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:00:51,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 07:00:51,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:00:52,625 INFO L225 Difference]: With dead ends: 105675 [2022-11-19 07:00:52,626 INFO L226 Difference]: Without dead ends: 105675 [2022-11-19 07:00:52,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:00:52,627 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 168 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:00:52,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 319 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:00:52,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105675 states. [2022-11-19 07:00:54,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105675 to 59181. [2022-11-19 07:00:54,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59181 states, 58823 states have (on average 2.937320435883923) internal successors, (172782), 59180 states have internal predecessors, (172782), 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) [2022-11-19 07:00:54,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59181 states to 59181 states and 172782 transitions. [2022-11-19 07:00:54,642 INFO L78 Accepts]: Start accepts. Automaton has 59181 states and 172782 transitions. Word has length 9 [2022-11-19 07:00:54,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:00:54,642 INFO L495 AbstractCegarLoop]: Abstraction has 59181 states and 172782 transitions. [2022-11-19 07:00:54,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) 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) [2022-11-19 07:00:54,642 INFO L276 IsEmpty]: Start isEmpty. Operand 59181 states and 172782 transitions. [2022-11-19 07:00:54,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:00:54,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:00:54,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:00:54,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:00:54,644 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-19 07:00:54,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:00:54,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1607354058, now seen corresponding path program 1 times [2022-11-19 07:00:54,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:00:54,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544773767] [2022-11-19 07:00:54,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:00:54,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:00:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:00:55,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:00:55,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:00:55,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544773767] [2022-11-19 07:00:55,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544773767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:00:55,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:00:55,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:00:55,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267337606] [2022-11-19 07:00:55,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:00:55,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:00:55,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:00:55,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:00:55,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:00:55,138 INFO L87 Difference]: Start difference. First operand 59181 states and 172782 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:00:58,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:00:58,034 INFO L93 Difference]: Finished difference Result 96170 states and 277835 transitions. [2022-11-19 07:00:58,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:00:58,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 07:00:58,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:00:58,320 INFO L225 Difference]: With dead ends: 96170 [2022-11-19 07:00:58,320 INFO L226 Difference]: Without dead ends: 96170 [2022-11-19 07:00:58,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:00:58,321 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 403 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 1704 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 1704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:00:58,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 282 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 1704 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-19 07:00:58,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96170 states. [2022-11-19 07:01:00,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96170 to 88167. [2022-11-19 07:01:00,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88167 states, 87809 states have (on average 2.976744980582856) internal successors, (261385), 88166 states have internal predecessors, (261385), 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) [2022-11-19 07:01:01,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88167 states to 88167 states and 261385 transitions. [2022-11-19 07:01:01,126 INFO L78 Accepts]: Start accepts. Automaton has 88167 states and 261385 transitions. Word has length 10 [2022-11-19 07:01:01,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:01,126 INFO L495 AbstractCegarLoop]: Abstraction has 88167 states and 261385 transitions. [2022-11-19 07:01:01,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:01:01,126 INFO L276 IsEmpty]: Start isEmpty. Operand 88167 states and 261385 transitions. [2022-11-19 07:01:01,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:01:01,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:01,129 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:01,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:01:01,129 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-19 07:01:01,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:01,130 INFO L85 PathProgramCache]: Analyzing trace with hash -2111004127, now seen corresponding path program 1 times [2022-11-19 07:01:01,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:01,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352479842] [2022-11-19 07:01:01,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:01,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:01,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:01:01,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:01,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352479842] [2022-11-19 07:01:01,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352479842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:01,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:01:01,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:01:01,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706714977] [2022-11-19 07:01:01,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:01,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:01:01,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:01,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:01:01,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:01:01,206 INFO L87 Difference]: Start difference. First operand 88167 states and 261385 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:01:02,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:02,957 INFO L93 Difference]: Finished difference Result 161625 states and 478542 transitions. [2022-11-19 07:01:02,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:01:02,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 07:01:02,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:03,465 INFO L225 Difference]: With dead ends: 161625 [2022-11-19 07:01:03,466 INFO L226 Difference]: Without dead ends: 161625 [2022-11-19 07:01:03,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:01:03,467 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 173 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:03,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 315 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:01:04,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161625 states. [2022-11-19 07:01:06,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161625 to 89093. [2022-11-19 07:01:06,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89093 states, 88735 states have (on average 2.9762213331830734) internal successors, (264095), 89092 states have internal predecessors, (264095), 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) [2022-11-19 07:01:06,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89093 states to 89093 states and 264095 transitions. [2022-11-19 07:01:06,827 INFO L78 Accepts]: Start accepts. Automaton has 89093 states and 264095 transitions. Word has length 11 [2022-11-19 07:01:06,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:06,828 INFO L495 AbstractCegarLoop]: Abstraction has 89093 states and 264095 transitions. [2022-11-19 07:01:06,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:01:06,828 INFO L276 IsEmpty]: Start isEmpty. Operand 89093 states and 264095 transitions. [2022-11-19 07:01:06,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:01:06,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:06,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:06,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:01:06,833 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-19 07:01:06,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:06,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1225622430, now seen corresponding path program 1 times [2022-11-19 07:01:06,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:06,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775421272] [2022-11-19 07:01:06,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:06,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:07,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:01:07,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:07,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775421272] [2022-11-19 07:01:07,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775421272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:07,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:01:07,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:01:07,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508868235] [2022-11-19 07:01:07,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:07,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:01:07,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:07,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:01:07,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:01:07,923 INFO L87 Difference]: Start difference. First operand 89093 states and 264095 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-11-19 07:01:10,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:10,092 INFO L93 Difference]: Finished difference Result 112883 states and 335048 transitions. [2022-11-19 07:01:10,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:01:10,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2022-11-19 07:01:10,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:10,566 INFO L225 Difference]: With dead ends: 112883 [2022-11-19 07:01:10,566 INFO L226 Difference]: Without dead ends: 112883 [2022-11-19 07:01:10,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:01:10,567 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 248 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:10,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 204 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1167 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-19 07:01:10,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112883 states. [2022-11-19 07:01:13,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112883 to 101399. [2022-11-19 07:01:13,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101399 states, 101041 states have (on average 2.981848952405459) internal successors, (301289), 101398 states have internal predecessors, (301289), 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) [2022-11-19 07:01:13,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101399 states to 101399 states and 301289 transitions. [2022-11-19 07:01:13,571 INFO L78 Accepts]: Start accepts. Automaton has 101399 states and 301289 transitions. Word has length 12 [2022-11-19 07:01:13,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:13,571 INFO L495 AbstractCegarLoop]: Abstraction has 101399 states and 301289 transitions. [2022-11-19 07:01:13,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-11-19 07:01:13,572 INFO L276 IsEmpty]: Start isEmpty. Operand 101399 states and 301289 transitions. [2022-11-19 07:01:13,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 07:01:13,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:13,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:13,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:01:13,573 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-19 07:01:13,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:13,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1469356394, now seen corresponding path program 1 times [2022-11-19 07:01:13,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:13,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320135796] [2022-11-19 07:01:13,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:13,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:13,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:01:13,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:13,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320135796] [2022-11-19 07:01:13,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320135796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:13,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:01:13,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:01:13,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423310638] [2022-11-19 07:01:13,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:13,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:01:13,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:13,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:01:13,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:01:13,895 INFO L87 Difference]: Start difference. First operand 101399 states and 301289 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-19 07:01:16,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:16,807 INFO L93 Difference]: Finished difference Result 141073 states and 418300 transitions. [2022-11-19 07:01:16,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:01:16,808 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2022-11-19 07:01:16,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:17,236 INFO L225 Difference]: With dead ends: 141073 [2022-11-19 07:01:17,237 INFO L226 Difference]: Without dead ends: 141073 [2022-11-19 07:01:17,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:01:17,237 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 254 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:17,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 219 Invalid, 1619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-19 07:01:18,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141073 states. [2022-11-19 07:01:20,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141073 to 104539. [2022-11-19 07:01:20,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104539 states, 104187 states have (on average 2.979661570061524) internal successors, (310442), 104538 states have internal predecessors, (310442), 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) [2022-11-19 07:01:20,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104539 states to 104539 states and 310442 transitions. [2022-11-19 07:01:20,868 INFO L78 Accepts]: Start accepts. Automaton has 104539 states and 310442 transitions. Word has length 14 [2022-11-19 07:01:20,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:20,868 INFO L495 AbstractCegarLoop]: Abstraction has 104539 states and 310442 transitions. [2022-11-19 07:01:20,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-19 07:01:20,868 INFO L276 IsEmpty]: Start isEmpty. Operand 104539 states and 310442 transitions. [2022-11-19 07:01:20,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 07:01:20,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:20,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:20,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:01:20,872 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-19 07:01:20,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:20,873 INFO L85 PathProgramCache]: Analyzing trace with hash -2117596011, now seen corresponding path program 1 times [2022-11-19 07:01:20,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:20,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753011586] [2022-11-19 07:01:20,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:20,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:21,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:01:21,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:21,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753011586] [2022-11-19 07:01:21,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753011586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:21,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:01:21,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:01:21,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940849898] [2022-11-19 07:01:21,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:21,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:01:21,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:21,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:01:21,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:01:21,222 INFO L87 Difference]: Start difference. First operand 104539 states and 310442 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:01:24,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:24,005 INFO L93 Difference]: Finished difference Result 107444 states and 318872 transitions. [2022-11-19 07:01:24,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:01:24,006 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 07:01:24,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:24,320 INFO L225 Difference]: With dead ends: 107444 [2022-11-19 07:01:24,320 INFO L226 Difference]: Without dead ends: 107444 [2022-11-19 07:01:24,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:01:24,321 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 224 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:24,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 231 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-19 07:01:24,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107444 states.