./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/queue_longer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/bin/utaipan-7li7fVZpFI --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 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:32:48,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:32:48,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:32:48,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:32:48,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:32:48,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:32:48,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:32:48,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:32:48,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:32:48,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:32:48,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:32:48,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:32:48,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:32:48,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:32:48,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:32:48,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:32:48,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:32:48,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:32:48,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:32:48,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:32:48,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:32:48,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:32:48,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:32:48,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:32:48,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:32:48,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:32:48,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:32:48,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:32:48,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:32:48,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:32:48,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:32:48,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:32:48,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:32:48,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:32:48,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:32:48,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:32:48,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:32:48,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:32:48,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:32:48,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:32:48,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:32:48,775 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 02:32:48,827 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:32:48,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:32:48,832 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:32:48,833 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:32:48,834 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:32:48,834 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:32:48,835 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:32:48,835 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:32:48,835 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:32:48,836 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:32:48,837 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:32:48,837 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:32:48,838 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:32:48,838 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:32:48,838 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:32:48,839 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:32:48,839 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:32:48,839 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:32:48,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:32:48,841 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:32:48,841 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:32:48,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:32:48,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:32:48,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:32:48,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:32:48,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:32:48,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:32:48,843 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 02:32:48,844 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:32:48,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:32:48,844 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:32:48,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:32:48,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:32:48,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:32:48,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:32:48,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:32:48,847 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:32:48,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:32:48,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:32:48,848 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:32:48,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:32:48,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:32:48,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:32:48,849 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_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 [2022-11-03 02:32:49,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:32:49,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:32:49,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:32:49,311 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:32:49,312 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:32:49,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread/queue_longer.i [2022-11-03 02:32:49,408 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/bin/utaipan-7li7fVZpFI/data/b37f8941c/51f888a063114fb7bf8a4811d3ec341a/FLAG79780e6e6 [2022-11-03 02:32:50,030 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:32:50,031 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/sv-benchmarks/c/pthread/queue_longer.i [2022-11-03 02:32:50,063 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/bin/utaipan-7li7fVZpFI/data/b37f8941c/51f888a063114fb7bf8a4811d3ec341a/FLAG79780e6e6 [2022-11-03 02:32:50,290 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/bin/utaipan-7li7fVZpFI/data/b37f8941c/51f888a063114fb7bf8a4811d3ec341a [2022-11-03 02:32:50,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:32:50,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:32:50,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:32:50,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:32:50,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:32:50,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:32:50" (1/1) ... [2022-11-03 02:32:50,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49887070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:50, skipping insertion in model container [2022-11-03 02:32:50,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:32:50" (1/1) ... [2022-11-03 02:32:50,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:32:50,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:32:51,125 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/sv-benchmarks/c/pthread/queue_longer.i[43296,43309] [2022-11-03 02:32:51,129 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/sv-benchmarks/c/pthread/queue_longer.i[43503,43516] [2022-11-03 02:32:51,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/sv-benchmarks/c/pthread/queue_longer.i[43783,43796] [2022-11-03 02:32:51,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:32:51,155 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:32:51,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/sv-benchmarks/c/pthread/queue_longer.i[43296,43309] [2022-11-03 02:32:51,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/sv-benchmarks/c/pthread/queue_longer.i[43503,43516] [2022-11-03 02:32:51,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/sv-benchmarks/c/pthread/queue_longer.i[43783,43796] [2022-11-03 02:32:51,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:32:51,302 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:32:51,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:51 WrapperNode [2022-11-03 02:32:51,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:32:51,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:32:51,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:32:51,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:32:51,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:51" (1/1) ... [2022-11-03 02:32:51,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:51" (1/1) ... [2022-11-03 02:32:51,452 INFO L138 Inliner]: procedures = 274, calls = 62, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 483 [2022-11-03 02:32:51,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:32:51,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:32:51,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:32:51,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:32:51,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:51" (1/1) ... [2022-11-03 02:32:51,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:51" (1/1) ... [2022-11-03 02:32:51,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:51" (1/1) ... [2022-11-03 02:32:51,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:51" (1/1) ... [2022-11-03 02:32:51,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:51" (1/1) ... [2022-11-03 02:32:51,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:51" (1/1) ... [2022-11-03 02:32:51,553 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:51" (1/1) ... [2022-11-03 02:32:51,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:51" (1/1) ... [2022-11-03 02:32:51,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:32:51,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:32:51,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:32:51,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:32:51,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:51" (1/1) ... [2022-11-03 02:32:51,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:32:51,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:51,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:32:51,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea3cac8-9a9e-445b-9ca7-63e9a41d0b36/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:32:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-03 02:32:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-03 02:32:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-03 02:32:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-03 02:32:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:32:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:32:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:32:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:32:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 02:32:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:32:51,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:32:51,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:32:51,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:32:51,677 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:32:51,945 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:32:51,948 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:32:52,942 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:32:52,952 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:32:52,953 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:32:52,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:32:52 BoogieIcfgContainer [2022-11-03 02:32:52,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:32:52,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:32:52,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:32:52,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:32:52,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:32:50" (1/3) ... [2022-11-03 02:32:52,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12628b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:32:52, skipping insertion in model container [2022-11-03 02:32:52,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:51" (2/3) ... [2022-11-03 02:32:52,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12628b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:32:52, skipping insertion in model container [2022-11-03 02:32:52,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:32:52" (3/3) ... [2022-11-03 02:32:52,965 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longer.i [2022-11-03 02:32:52,975 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:32:52,986 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:32:52,986 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-11-03 02:32:52,986 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:32:53,156 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-03 02:32:53,197 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:32:53,211 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 547 places, 555 transitions, 1126 flow [2022-11-03 02:32:53,214 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 547 places, 555 transitions, 1126 flow [2022-11-03 02:32:53,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 547 places, 555 transitions, 1126 flow [2022-11-03 02:32:53,635 INFO L130 PetriNetUnfolder]: 15/553 cut-off events. [2022-11-03 02:32:53,635 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-03 02:32:53,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 553 events. 15/553 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 795 event pairs, 0 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 421. Up to 2 conditions per place. [2022-11-03 02:32:53,696 INFO L118 LiptonReduction]: Number of co-enabled transitions 83848 [2022-11-03 02:33:15,392 WARN L234 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 103 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:33:26,197 WARN L234 SmtUtils]: Spent 6.11s on a formula simplification that was a NOOP. DAG size: 107 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:33:32,442 WARN L234 SmtUtils]: Spent 6.24s on a formula simplification that was a NOOP. DAG size: 105 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:33:50,529 WARN L234 SmtUtils]: Spent 16.47s on a formula simplification. DAG size of input: 220 DAG size of output: 209 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:33:58,709 WARN L234 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 204 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:34:24,060 WARN L234 SmtUtils]: Spent 19.39s on a formula simplification that was a NOOP. DAG size: 221 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:34:37,806 WARN L234 SmtUtils]: Spent 13.74s on a formula simplification that was a NOOP. DAG size: 217 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:34:45,842 INFO L133 LiptonReduction]: Checked pairs total: 1466408 [2022-11-03 02:34:45,843 INFO L135 LiptonReduction]: Total number of compositions: 360 [2022-11-03 02:34:45,853 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 273 places, 274 transitions, 564 flow [2022-11-03 02:34:49,219 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 102084 states, 101441 states have (on average 2.9352135724214077) internal successors, (297751), 102083 states have internal predecessors, (297751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:34:49,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:34:49,251 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;@ece2c1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:34:49,251 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2022-11-03 02:34:49,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 102084 states, 101441 states have (on average 2.9352135724214077) internal successors, (297751), 102083 states have internal predecessors, (297751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:34:49,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-03 02:34:49,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:49,524 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-03 02:34:49,524 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-03 02:34:49,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:49,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 1 times [2022-11-03 02:34:49,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:49,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830099713] [2022-11-03 02:34:49,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:49,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:49,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:34:49,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:49,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830099713] [2022-11-03 02:34:49,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830099713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:49,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:34:49,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-03 02:34:49,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542183678] [2022-11-03 02:34:49,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:49,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:34:49,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:49,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:34:49,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:34:49,895 INFO L87 Difference]: Start difference. First operand has 102084 states, 101441 states have (on average 2.9352135724214077) internal successors, (297751), 102083 states have internal predecessors, (297751), 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) [2022-11-03 02:34:52,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:52,467 INFO L93 Difference]: Finished difference Result 102077 states and 297102 transitions. [2022-11-03 02:34:52,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:34:52,475 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 [2022-11-03 02:34:52,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:53,437 INFO L225 Difference]: With dead ends: 102077 [2022-11-03 02:34:53,438 INFO L226 Difference]: Without dead ends: 102077 [2022-11-03 02:34:53,439 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 [2022-11-03 02:34:53,442 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:53,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 178 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:34:53,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102077 states. [2022-11-03 02:34:57,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102077 to 102077. [2022-11-03 02:34:57,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102077 states, 101441 states have (on average 2.928815764828817) internal successors, (297102), 102076 states have internal predecessors, (297102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:34:58,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102077 states to 102077 states and 297102 transitions. [2022-11-03 02:34:58,075 INFO L78 Accepts]: Start accepts. Automaton has 102077 states and 297102 transitions. Word has length 1 [2022-11-03 02:34:58,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:58,076 INFO L495 AbstractCegarLoop]: Abstraction has 102077 states and 297102 transitions. [2022-11-03 02:34:58,076 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) [2022-11-03 02:34:58,079 INFO L276 IsEmpty]: Start isEmpty. Operand 102077 states and 297102 transitions. [2022-11-03 02:34:58,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 02:34:58,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:58,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:58,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:34:58,084 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-03 02:34:58,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:58,086 INFO L85 PathProgramCache]: Analyzing trace with hash 612551093, now seen corresponding path program 1 times [2022-11-03 02:34:58,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:58,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204616911] [2022-11-03 02:34:58,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:58,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:58,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:34:58,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:58,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204616911] [2022-11-03 02:34:58,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204616911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:58,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:34:58,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:34:58,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28123239] [2022-11-03 02:34:58,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:58,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:34:58,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:58,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:34:58,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:34:58,733 INFO L87 Difference]: Start difference. First operand 102077 states and 297102 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:00,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:35:00,021 INFO L93 Difference]: Finished difference Result 148780 states and 433309 transitions. [2022-11-03 02:35:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:35:00,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-03 02:35:00,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:35:01,033 INFO L225 Difference]: With dead ends: 148780 [2022-11-03 02:35:01,034 INFO L226 Difference]: Without dead ends: 148780 [2022-11-03 02:35:01,034 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 [2022-11-03 02:35:01,035 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 246 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:35:01,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 472 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:35:01,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148780 states. [2022-11-03 02:35:04,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148780 to 102085. [2022-11-03 02:35:04,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102085 states, 101471 states have (on average 2.934493599156409) internal successors, (297766), 102084 states have internal predecessors, (297766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:04,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102085 states to 102085 states and 297766 transitions. [2022-11-03 02:35:04,826 INFO L78 Accepts]: Start accepts. Automaton has 102085 states and 297766 transitions. Word has length 8 [2022-11-03 02:35:04,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:35:04,827 INFO L495 AbstractCegarLoop]: Abstraction has 102085 states and 297766 transitions. [2022-11-03 02:35:04,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:04,827 INFO L276 IsEmpty]: Start isEmpty. Operand 102085 states and 297766 transitions. [2022-11-03 02:35:04,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:35:04,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:35:04,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:35:04,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:35:04,829 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-03 02:35:04,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:35:04,830 INFO L85 PathProgramCache]: Analyzing trace with hash 124310750, now seen corresponding path program 1 times [2022-11-03 02:35:04,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:35:04,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770973277] [2022-11-03 02:35:04,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:04,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:35:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:35:05,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:35:05,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:35:05,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770973277] [2022-11-03 02:35:05,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770973277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:35:05,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:35:05,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:35:05,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703889142] [2022-11-03 02:35:05,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:35:05,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:35:05,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:35:05,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:35:05,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:35:05,421 INFO L87 Difference]: Start difference. First operand 102085 states and 297766 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2022-11-03 02:35:08,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:35:08,510 INFO L93 Difference]: Finished difference Result 130681 states and 381950 transitions. [2022-11-03 02:35:08,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:35:08,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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 [2022-11-03 02:35:08,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:35:09,041 INFO L225 Difference]: With dead ends: 130681 [2022-11-03 02:35:09,041 INFO L226 Difference]: Without dead ends: 130681 [2022-11-03 02:35:09,041 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 [2022-11-03 02:35:09,043 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 236 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:35:09,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 294 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1555 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-03 02:35:09,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130681 states. [2022-11-03 02:35:11,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130681 to 116953. [2022-11-03 02:35:12,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116953 states, 116345 states have (on average 2.940650651080837) internal successors, (342130), 116952 states have internal predecessors, (342130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:13,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116953 states to 116953 states and 342130 transitions. [2022-11-03 02:35:13,044 INFO L78 Accepts]: Start accepts. Automaton has 116953 states and 342130 transitions. Word has length 9 [2022-11-03 02:35:13,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:35:13,045 INFO L495 AbstractCegarLoop]: Abstraction has 116953 states and 342130 transitions. [2022-11-03 02:35:13,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2022-11-03 02:35:13,054 INFO L276 IsEmpty]: Start isEmpty. Operand 116953 states and 342130 transitions. [2022-11-03 02:35:13,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:35:13,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:35:13,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:35:13,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:35:13,070 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-03 02:35:13,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:35:13,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1839874575, now seen corresponding path program 1 times [2022-11-03 02:35:13,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:35:13,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341972711] [2022-11-03 02:35:13,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:13,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:35:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:35:13,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:35:13,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:35:13,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341972711] [2022-11-03 02:35:13,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341972711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:35:13,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:35:13,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:35:13,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625401850] [2022-11-03 02:35:13,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:35:13,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:35:13,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:35:13,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:35:13,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:35:13,632 INFO L87 Difference]: Start difference. First operand 116953 states and 342130 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) [2022-11-03 02:35:18,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:35:18,455 INFO L93 Difference]: Finished difference Result 190046 states and 550480 transitions. [2022-11-03 02:35:18,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:35:18,456 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 [2022-11-03 02:35:18,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:35:19,097 INFO L225 Difference]: With dead ends: 190046 [2022-11-03 02:35:19,097 INFO L226 Difference]: Without dead ends: 190046 [2022-11-03 02:35:19,097 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 [2022-11-03 02:35:19,098 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 518 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 3008 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 3277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 3008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:35:19,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 405 Invalid, 3277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 3008 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-03 02:35:19,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190046 states. [2022-11-03 02:35:23,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190046 to 174908. [2022-11-03 02:35:23,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174908 states, 174300 states have (on average 2.979592656339644) internal successors, (519343), 174907 states have internal predecessors, (519343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:24,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174908 states to 174908 states and 519343 transitions. [2022-11-03 02:35:24,642 INFO L78 Accepts]: Start accepts. Automaton has 174908 states and 519343 transitions. Word has length 10 [2022-11-03 02:35:24,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:35:24,643 INFO L495 AbstractCegarLoop]: Abstraction has 174908 states and 519343 transitions. [2022-11-03 02:35:24,644 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) [2022-11-03 02:35:24,644 INFO L276 IsEmpty]: Start isEmpty. Operand 174908 states and 519343 transitions. [2022-11-03 02:35:24,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:35:24,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:35:24,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:35:24,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:35:24,647 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-03 02:35:24,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:35:24,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1051299488, now seen corresponding path program 1 times [2022-11-03 02:35:24,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:35:24,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871047749] [2022-11-03 02:35:24,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:24,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:35:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:35:25,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:35:25,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:35:25,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871047749] [2022-11-03 02:35:25,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871047749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:35:25,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:35:25,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:35:25,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915125913] [2022-11-03 02:35:25,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:35:25,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:35:25,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:35:25,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:35:25,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:35:25,062 INFO L87 Difference]: Start difference. First operand 174908 states and 519343 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) [2022-11-03 02:35:29,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:35:29,789 INFO L93 Difference]: Finished difference Result 257532 states and 763569 transitions. [2022-11-03 02:35:29,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:35:29,789 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 [2022-11-03 02:35:29,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:35:30,900 INFO L225 Difference]: With dead ends: 257532 [2022-11-03 02:35:30,900 INFO L226 Difference]: Without dead ends: 257532 [2022-11-03 02:35:30,900 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 [2022-11-03 02:35:30,901 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 415 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 1676 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 1963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 1676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:35:30,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 242 Invalid, 1963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 1676 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-03 02:35:31,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257532 states.