./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_ok_longest.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_491cf1bf-db88-4379-97ed-72b02d3e3d0b/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_491cf1bf-db88-4379-97ed-72b02d3e3d0b/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_491cf1bf-db88-4379-97ed-72b02d3e3d0b/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_491cf1bf-db88-4379-97ed-72b02d3e3d0b/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/queue_ok_longest.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_491cf1bf-db88-4379-97ed-72b02d3e3d0b/bin/utaipan-Xvt2sAort0/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_491cf1bf-db88-4379-97ed-72b02d3e3d0b/bin/utaipan-Xvt2sAort0 --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 0e9bc4a9a6dcd238ac18925269a0bd7c8c54c2dafb57744151e37b58cf6eab8d --- 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-e04fb08 [2022-11-16 20:18:45,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:18:45,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:18:45,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:18:45,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:18:45,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:18:45,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:18:45,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:18:45,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:18:45,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:18:45,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:18:45,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:18:45,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:18:45,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:18:45,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:18:45,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:18:45,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:18:45,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:18:45,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:18:45,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:18:45,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:18:45,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:18:45,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:18:45,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:18:45,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:18:45,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:18:45,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:18:45,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:18:45,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:18:45,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:18:45,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:18:45,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:18:45,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:18:45,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:18:45,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:18:45,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:18:45,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:18:45,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:18:45,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:18:45,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:18:45,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:18:45,728 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_491cf1bf-db88-4379-97ed-72b02d3e3d0b/bin/utaipan-Xvt2sAort0/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-16 20:18:45,771 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:18:45,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:18:45,776 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:18:45,777 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:18:45,778 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:18:45,778 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:18:45,778 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:18:45,778 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:18:45,779 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:18:45,779 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:18:45,780 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:18:45,780 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:18:45,780 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:18:45,781 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:18:45,781 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:18:45,781 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:18:45,781 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:18:45,781 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:18:45,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:18:45,782 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 20:18:45,783 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 20:18:45,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:18:45,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 20:18:45,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:18:45,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:18:45,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:18:45,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:18:45,785 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 20:18:45,786 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 20:18:45,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:18:45,787 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:18:45,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:18:45,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:18:45,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:18:45,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:18:45,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:18:45,788 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:18:45,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:18:45,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:18:45,789 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:18:45,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:18:45,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:18:45,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:18:45,790 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_491cf1bf-db88-4379-97ed-72b02d3e3d0b/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_491cf1bf-db88-4379-97ed-72b02d3e3d0b/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e9bc4a9a6dcd238ac18925269a0bd7c8c54c2dafb57744151e37b58cf6eab8d [2022-11-16 20:18:46,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:18:46,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:18:46,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:18:46,175 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:18:46,176 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:18:46,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_491cf1bf-db88-4379-97ed-72b02d3e3d0b/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/pthread/queue_ok_longest.i [2022-11-16 20:18:46,246 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_491cf1bf-db88-4379-97ed-72b02d3e3d0b/bin/utaipan-Xvt2sAort0/data/bc3852cdd/0141527c8f0f4c56993b5a1460371537/FLAG00c8f02ad [2022-11-16 20:18:46,827 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:18:46,828 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_491cf1bf-db88-4379-97ed-72b02d3e3d0b/sv-benchmarks/c/pthread/queue_ok_longest.i [2022-11-16 20:18:46,846 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_491cf1bf-db88-4379-97ed-72b02d3e3d0b/bin/utaipan-Xvt2sAort0/data/bc3852cdd/0141527c8f0f4c56993b5a1460371537/FLAG00c8f02ad [2022-11-16 20:18:47,106 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_491cf1bf-db88-4379-97ed-72b02d3e3d0b/bin/utaipan-Xvt2sAort0/data/bc3852cdd/0141527c8f0f4c56993b5a1460371537 [2022-11-16 20:18:47,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:18:47,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:18:47,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:18:47,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:18:47,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:18:47,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:18:47" (1/1) ... [2022-11-16 20:18:47,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23fa0647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:47, skipping insertion in model container [2022-11-16 20:18:47,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:18:47" (1/1) ... [2022-11-16 20:18:47,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:18:47,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:18:47,818 WARN L229 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_491cf1bf-db88-4379-97ed-72b02d3e3d0b/sv-benchmarks/c/pthread/queue_ok_longest.i[43280,43293] [2022-11-16 20:18:47,827 WARN L229 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_491cf1bf-db88-4379-97ed-72b02d3e3d0b/sv-benchmarks/c/pthread/queue_ok_longest.i[43553,43566] [2022-11-16 20:18:47,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:18:47,855 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:18:47,925 WARN L229 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_491cf1bf-db88-4379-97ed-72b02d3e3d0b/sv-benchmarks/c/pthread/queue_ok_longest.i[43280,43293] [2022-11-16 20:18:47,928 WARN L229 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_491cf1bf-db88-4379-97ed-72b02d3e3d0b/sv-benchmarks/c/pthread/queue_ok_longest.i[43553,43566] [2022-11-16 20:18:47,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:18:48,008 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:18:48,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:48 WrapperNode [2022-11-16 20:18:48,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:18:48,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:18:48,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:18:48,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:18:48,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:48" (1/1) ... [2022-11-16 20:18:48,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:48" (1/1) ... [2022-11-16 20:18:48,146 INFO L138 Inliner]: procedures = 274, calls = 59, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 389 [2022-11-16 20:18:48,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:18:48,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:18:48,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:18:48,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:18:48,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:48" (1/1) ... [2022-11-16 20:18:48,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:48" (1/1) ... [2022-11-16 20:18:48,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:48" (1/1) ... [2022-11-16 20:18:48,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:48" (1/1) ... [2022-11-16 20:18:48,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:48" (1/1) ... [2022-11-16 20:18:48,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:48" (1/1) ... [2022-11-16 20:18:48,252 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:48" (1/1) ... [2022-11-16 20:18:48,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:48" (1/1) ... [2022-11-16 20:18:48,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:18:48,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:18:48,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:18:48,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:18:48,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:48" (1/1) ... [2022-11-16 20:18:48,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:18:48,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_491cf1bf-db88-4379-97ed-72b02d3e3d0b/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:18:48,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_491cf1bf-db88-4379-97ed-72b02d3e3d0b/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:18:48,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_491cf1bf-db88-4379-97ed-72b02d3e3d0b/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:18:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-16 20:18:48,373 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-16 20:18:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-16 20:18:48,374 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-16 20:18:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 20:18:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 20:18:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 20:18:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 20:18:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 20:18:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:18:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 20:18:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:18:48,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:18:48,377 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 20:18:48,619 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:18:48,626 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:18:49,527 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:18:49,538 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:18:49,539 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 20:18:49,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:18:49 BoogieIcfgContainer [2022-11-16 20:18:49,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:18:49,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:18:49,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:18:49,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:18:49,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:18:47" (1/3) ... [2022-11-16 20:18:49,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40994429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:18:49, skipping insertion in model container [2022-11-16 20:18:49,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:48" (2/3) ... [2022-11-16 20:18:49,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40994429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:18:49, skipping insertion in model container [2022-11-16 20:18:49,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:18:49" (3/3) ... [2022-11-16 20:18:49,556 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok_longest.i [2022-11-16 20:18:49,566 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 20:18:49,577 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:18:49,577 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2022-11-16 20:18:49,577 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 20:18:49,766 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 20:18:49,826 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 20:18:49,838 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 443 places, 449 transitions, 914 flow [2022-11-16 20:18:49,841 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 443 places, 449 transitions, 914 flow [2022-11-16 20:18:49,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 443 places, 449 transitions, 914 flow [2022-11-16 20:18:50,098 INFO L130 PetriNetUnfolder]: 13/447 cut-off events. [2022-11-16 20:18:50,098 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 20:18:50,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 447 events. 13/447 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 785 event pairs, 0 based on Foata normal form. 0/399 useless extension candidates. Maximal degree in co-relation 315. Up to 3 conditions per place. [2022-11-16 20:18:50,145 INFO L119 LiptonReduction]: Number of co-enabled transitions 53036 [2022-11-16 20:19:51,029 WARN L233 SmtUtils]: Spent 20.94s on a formula simplification. DAG size of input: 231 DAG size of output: 223 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-16 20:20:01,389 WARN L233 SmtUtils]: Spent 10.36s on a formula simplification that was a NOOP. DAG size: 218 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-16 20:20:34,447 WARN L233 SmtUtils]: Spent 33.05s on a formula simplification. DAG size of input: 238 DAG size of output: 230 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-16 20:20:44,296 WARN L233 SmtUtils]: Spent 9.85s on a formula simplification that was a NOOP. DAG size: 224 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-16 20:20:44,304 INFO L134 LiptonReduction]: Checked pairs total: 459797 [2022-11-16 20:20:44,304 INFO L136 LiptonReduction]: Total number of compositions: 311 [2022-11-16 20:20:44,313 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 207 places, 207 transitions, 430 flow [2022-11-16 20:20:46,409 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 59684 states, 59273 states have (on average 2.9389266613803926) internal successors, (174199), 59683 states have internal predecessors, (174199), 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) [2022-11-16 20:20:46,473 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:20:46,482 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;@2f6c7205, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:20:46,483 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-11-16 20:20:46,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 59684 states, 59273 states have (on average 2.9389266613803926) internal successors, (174199), 59683 states have internal predecessors, (174199), 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) [2022-11-16 20:20:46,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 20:20:46,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:20:46,623 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 20:20:46,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-16 20:20:46,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:20:46,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1583, now seen corresponding path program 1 times [2022-11-16 20:20:46,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:20:46,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978805862] [2022-11-16 20:20:46,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:20:46,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:20:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:20:46,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:20:46,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:20:46,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978805862] [2022-11-16 20:20:46,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978805862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:20:46,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:20:46,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 20:20:46,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791099758] [2022-11-16 20:20:46,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:20:46,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 20:20:46,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:20:46,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 20:20:46,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 20:20:47,063 INFO L87 Difference]: Start difference. First operand has 59684 states, 59273 states have (on average 2.9389266613803926) internal successors, (174199), 59683 states have internal predecessors, (174199), 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) [2022-11-16 20:20:48,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:20:48,619 INFO L93 Difference]: Finished difference Result 59677 states and 174192 transitions. [2022-11-16 20:20:48,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 20:20:48,636 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 [2022-11-16 20:20:48,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:20:49,202 INFO L225 Difference]: With dead ends: 59677 [2022-11-16 20:20:49,204 INFO L226 Difference]: Without dead ends: 59677 [2022-11-16 20:20:49,206 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 [2022-11-16 20:20:49,215 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 20:20:49,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 20:20:49,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59677 states. [2022-11-16 20:20:51,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59677 to 59677. [2022-11-16 20:20:51,723 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) [2022-11-16 20:20:52,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59677 states to 59677 states and 174192 transitions. [2022-11-16 20:20:52,398 INFO L78 Accepts]: Start accepts. Automaton has 59677 states and 174192 transitions. Word has length 1 [2022-11-16 20:20:52,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:20:52,398 INFO L495 AbstractCegarLoop]: Abstraction has 59677 states and 174192 transitions. [2022-11-16 20:20:52,398 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) [2022-11-16 20:20:52,400 INFO L276 IsEmpty]: Start isEmpty. Operand 59677 states and 174192 transitions. [2022-11-16 20:20:52,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 20:20:52,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:20:52,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 20:20:52,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:20:52,403 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-16 20:20:52,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:20:52,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1513664310, now seen corresponding path program 1 times [2022-11-16 20:20:52,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:20:52,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481680690] [2022-11-16 20:20:52,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:20:52,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:20:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:20:52,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:20:52,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:20:52,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481680690] [2022-11-16 20:20:52,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481680690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:20:52,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:20:52,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:20:52,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166822297] [2022-11-16 20:20:52,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:20:52,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:20:52,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:20:52,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:20:52,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:20:52,788 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) [2022-11-16 20:20:53,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:20:53,713 INFO L93 Difference]: Finished difference Result 62626 states and 180843 transitions. [2022-11-16 20:20:53,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:20:53,714 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 [2022-11-16 20:20:53,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:20:54,099 INFO L225 Difference]: With dead ends: 62626 [2022-11-16 20:20:54,100 INFO L226 Difference]: Without dead ends: 62626 [2022-11-16 20:20:54,100 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 [2022-11-16 20:20:54,101 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 182 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 20:20:54,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 324 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 20:20:54,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62626 states. [2022-11-16 20:20:55,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62626 to 58995. [2022-11-16 20:20:56,087 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) [2022-11-16 20:20:56,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58995 states to 58995 states and 172225 transitions. [2022-11-16 20:20:56,319 INFO L78 Accepts]: Start accepts. Automaton has 58995 states and 172225 transitions. Word has length 5 [2022-11-16 20:20:56,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:20:56,320 INFO L495 AbstractCegarLoop]: Abstraction has 58995 states and 172225 transitions. [2022-11-16 20:20:56,320 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) [2022-11-16 20:20:56,320 INFO L276 IsEmpty]: Start isEmpty. Operand 58995 states and 172225 transitions. [2022-11-16 20:20:56,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 20:20:56,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:20:56,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:20:56,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 20:20:56,321 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-16 20:20:56,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:20:56,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1368062290, now seen corresponding path program 1 times [2022-11-16 20:20:56,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:20:56,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378641812] [2022-11-16 20:20:56,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:20:56,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:20:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:20:56,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:20:56,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:20:56,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378641812] [2022-11-16 20:20:56,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378641812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:20:56,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:20:56,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:20:56,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260900092] [2022-11-16 20:20:56,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:20:56,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:20:56,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:20:56,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:20:56,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:20:56,412 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) [2022-11-16 20:20:57,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:20:57,295 INFO L93 Difference]: Finished difference Result 62313 states and 180049 transitions. [2022-11-16 20:20:57,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:20:57,296 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 [2022-11-16 20:20:57,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:20:57,579 INFO L225 Difference]: With dead ends: 62313 [2022-11-16 20:20:57,579 INFO L226 Difference]: Without dead ends: 62313 [2022-11-16 20:20:57,580 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 [2022-11-16 20:20:57,581 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 179 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 20:20:57,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 317 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 20:20:57,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62313 states. [2022-11-16 20:20:59,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62313 to 58443. [2022-11-16 20:20:59,161 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) [2022-11-16 20:20:59,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58443 states to 58443 states and 170638 transitions. [2022-11-16 20:20:59,343 INFO L78 Accepts]: Start accepts. Automaton has 58443 states and 170638 transitions. Word has length 7 [2022-11-16 20:20:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:20:59,344 INFO L495 AbstractCegarLoop]: Abstraction has 58443 states and 170638 transitions. [2022-11-16 20:20:59,344 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) [2022-11-16 20:20:59,344 INFO L276 IsEmpty]: Start isEmpty. Operand 58443 states and 170638 transitions. [2022-11-16 20:20:59,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 20:20:59,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:20:59,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:20:59,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 20:20:59,346 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-16 20:20:59,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:20:59,347 INFO L85 PathProgramCache]: Analyzing trace with hash 632965870, now seen corresponding path program 1 times [2022-11-16 20:20:59,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:20:59,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611867003] [2022-11-16 20:20:59,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:20:59,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:20:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:20:59,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:20:59,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:20:59,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611867003] [2022-11-16 20:20:59,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611867003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:20:59,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:20:59,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:20:59,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114742316] [2022-11-16 20:20:59,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:20:59,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:20:59,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:20:59,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:20:59,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:20:59,894 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) [2022-11-16 20:21:00,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:21:00,666 INFO L93 Difference]: Finished difference Result 105675 states and 308592 transitions. [2022-11-16 20:21:00,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:21:00,666 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 [2022-11-16 20:21:00,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:21:01,063 INFO L225 Difference]: With dead ends: 105675 [2022-11-16 20:21:01,063 INFO L226 Difference]: Without dead ends: 105675 [2022-11-16 20:21:01,064 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 [2022-11-16 20:21:01,065 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 168 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 20:21:01,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 322 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 20:21:01,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105675 states. [2022-11-16 20:21:03,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105675 to 59181. [2022-11-16 20:21:03,272 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) [2022-11-16 20:21:03,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59181 states to 59181 states and 172782 transitions. [2022-11-16 20:21:03,473 INFO L78 Accepts]: Start accepts. Automaton has 59181 states and 172782 transitions. Word has length 9 [2022-11-16 20:21:03,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:21:03,474 INFO L495 AbstractCegarLoop]: Abstraction has 59181 states and 172782 transitions. [2022-11-16 20:21:03,474 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) [2022-11-16 20:21:03,474 INFO L276 IsEmpty]: Start isEmpty. Operand 59181 states and 172782 transitions. [2022-11-16 20:21:03,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 20:21:03,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:21:03,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:21:03,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 20:21:03,477 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)] === [2022-11-16 20:21:03,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:21:03,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1753455674, now seen corresponding path program 1 times [2022-11-16 20:21:03,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:21:03,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880111257] [2022-11-16 20:21:03,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:03,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:21:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:04,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:21:04,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:21:04,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880111257] [2022-11-16 20:21:04,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880111257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:21:04,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:21:04,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 20:21:04,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862685791] [2022-11-16 20:21:04,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:21:04,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 20:21:04,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:21:04,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 20:21:04,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 20:21:04,035 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) [2022-11-16 20:21:06,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:21:06,757 INFO L93 Difference]: Finished difference Result 96170 states and 277835 transitions. [2022-11-16 20:21:06,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 20:21:06,757 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 [2022-11-16 20:21:06,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:21:07,055 INFO L225 Difference]: With dead ends: 96170 [2022-11-16 20:21:07,055 INFO L226 Difference]: Without dead ends: 96170 [2022-11-16 20:21:07,055 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 [2022-11-16 20:21:07,056 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 408 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-16 20:21:07,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 273 Invalid, 1609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-16 20:21:07,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96170 states. [2022-11-16 20:21:09,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96170 to 88167. [2022-11-16 20:21:09,430 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) [2022-11-16 20:21:09,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88167 states to 88167 states and 261385 transitions. [2022-11-16 20:21:09,660 INFO L78 Accepts]: Start accepts. Automaton has 88167 states and 261385 transitions. Word has length 10 [2022-11-16 20:21:09,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:21:09,660 INFO L495 AbstractCegarLoop]: Abstraction has 88167 states and 261385 transitions. [2022-11-16 20:21:09,660 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) [2022-11-16 20:21:09,660 INFO L276 IsEmpty]: Start isEmpty. Operand 88167 states and 261385 transitions. [2022-11-16 20:21:09,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 20:21:09,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:21:09,663 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:21:09,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 20:21:09,663 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-16 20:21:09,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:21:09,664 INFO L85 PathProgramCache]: Analyzing trace with hash -860688570, now seen corresponding path program 1 times [2022-11-16 20:21:09,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:21:09,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130344502] [2022-11-16 20:21:09,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:09,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:21:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:09,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:21:09,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:21:09,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130344502] [2022-11-16 20:21:09,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130344502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:21:09,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:21:09,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:21:09,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539034107] [2022-11-16 20:21:09,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:21:09,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:21:09,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:21:09,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:21:09,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:21:09,745 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) [2022-11-16 20:21:11,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:21:11,428 INFO L93 Difference]: Finished difference Result 161625 states and 478542 transitions. [2022-11-16 20:21:11,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:21:11,429 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 [2022-11-16 20:21:11,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:21:12,084 INFO L225 Difference]: With dead ends: 161625 [2022-11-16 20:21:12,084 INFO L226 Difference]: Without dead ends: 161625 [2022-11-16 20:21:12,084 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 [2022-11-16 20:21:12,085 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 173 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 20:21:12,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 317 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 20:21:12,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161625 states. [2022-11-16 20:21:15,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161625 to 89093. [2022-11-16 20:21:15,185 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) [2022-11-16 20:21:15,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89093 states to 89093 states and 264095 transitions. [2022-11-16 20:21:15,453 INFO L78 Accepts]: Start accepts. Automaton has 89093 states and 264095 transitions. Word has length 11 [2022-11-16 20:21:15,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:21:15,453 INFO L495 AbstractCegarLoop]: Abstraction has 89093 states and 264095 transitions. [2022-11-16 20:21:15,454 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) [2022-11-16 20:21:15,454 INFO L276 IsEmpty]: Start isEmpty. Operand 89093 states and 264095 transitions. [2022-11-16 20:21:15,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 20:21:15,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:21:15,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:21:15,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 20:21:15,456 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-16 20:21:15,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:21:15,456 INFO L85 PathProgramCache]: Analyzing trace with hash 781453877, now seen corresponding path program 1 times [2022-11-16 20:21:15,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:21:15,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931866564] [2022-11-16 20:21:15,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:15,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:21:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:15,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:21:15,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:21:15,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931866564] [2022-11-16 20:21:15,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931866564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:21:15,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:21:15,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 20:21:15,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899961940] [2022-11-16 20:21:15,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:21:15,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 20:21:15,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:21:15,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 20:21:15,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 20:21:15,849 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) [2022-11-16 20:21:18,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:21:18,878 INFO L93 Difference]: Finished difference Result 112883 states and 335048 transitions. [2022-11-16 20:21:18,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 20:21:18,879 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 [2022-11-16 20:21:18,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:21:19,253 INFO L225 Difference]: With dead ends: 112883 [2022-11-16 20:21:19,254 INFO L226 Difference]: Without dead ends: 112883 [2022-11-16 20:21:19,254 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 [2022-11-16 20:21:19,255 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 232 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-16 20:21:19,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 258 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-16 20:21:19,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112883 states. [2022-11-16 20:21:22,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112883 to 101399. [2022-11-16 20:21:22,497 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) [2022-11-16 20:21:22,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101399 states to 101399 states and 301289 transitions. [2022-11-16 20:21:22,775 INFO L78 Accepts]: Start accepts. Automaton has 101399 states and 301289 transitions. Word has length 12 [2022-11-16 20:21:22,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:21:22,775 INFO L495 AbstractCegarLoop]: Abstraction has 101399 states and 301289 transitions. [2022-11-16 20:21:22,776 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) [2022-11-16 20:21:22,776 INFO L276 IsEmpty]: Start isEmpty. Operand 101399 states and 301289 transitions. [2022-11-16 20:21:22,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 20:21:22,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:21:22,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:21:22,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 20:21:22,777 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-16 20:21:22,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:21:22,778 INFO L85 PathProgramCache]: Analyzing trace with hash -717126708, now seen corresponding path program 1 times [2022-11-16 20:21:22,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:21:22,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396566468] [2022-11-16 20:21:22,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:22,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:21:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:23,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:21:23,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:21:23,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396566468] [2022-11-16 20:21:23,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396566468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:21:23,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:21:23,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 20:21:23,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748303867] [2022-11-16 20:21:23,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:21:23,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 20:21:23,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:21:23,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 20:21:23,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 20:21:23,146 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) [2022-11-16 20:21:25,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:21:25,840 INFO L93 Difference]: Finished difference Result 141073 states and 418300 transitions. [2022-11-16 20:21:25,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 20:21:25,840 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 [2022-11-16 20:21:25,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:21:26,491 INFO L225 Difference]: With dead ends: 141073 [2022-11-16 20:21:26,491 INFO L226 Difference]: Without dead ends: 141073 [2022-11-16 20:21:26,491 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 [2022-11-16 20:21:26,492 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 254 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:21:26,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 205 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-16 20:21:26,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141073 states. [2022-11-16 20:21:29,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141073 to 104539. [2022-11-16 20:21:29,740 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) [2022-11-16 20:21:30,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104539 states to 104539 states and 310442 transitions. [2022-11-16 20:21:30,184 INFO L78 Accepts]: Start accepts. Automaton has 104539 states and 310442 transitions. Word has length 14 [2022-11-16 20:21:30,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:21:30,185 INFO L495 AbstractCegarLoop]: Abstraction has 104539 states and 310442 transitions. [2022-11-16 20:21:30,185 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) [2022-11-16 20:21:30,185 INFO L276 IsEmpty]: Start isEmpty. Operand 104539 states and 310442 transitions. [2022-11-16 20:21:30,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 20:21:30,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:21:30,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:21:30,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 20:21:30,188 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-16 20:21:30,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:21:30,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1756145516, now seen corresponding path program 1 times [2022-11-16 20:21:30,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:21:30,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490418465] [2022-11-16 20:21:30,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:30,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:21:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:30,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:21:30,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:21:30,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490418465] [2022-11-16 20:21:30,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490418465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:21:30,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:21:30,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 20:21:30,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623979161] [2022-11-16 20:21:30,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:21:30,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 20:21:30,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:21:30,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 20:21:30,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 20:21:30,652 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) [2022-11-16 20:21:33,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:21:33,539 INFO L93 Difference]: Finished difference Result 107444 states and 318872 transitions. [2022-11-16 20:21:33,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 20:21:33,541 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 [2022-11-16 20:21:33,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:21:33,907 INFO L225 Difference]: With dead ends: 107444 [2022-11-16 20:21:33,907 INFO L226 Difference]: Without dead ends: 107444 [2022-11-16 20:21:33,908 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 [2022-11-16 20:21:33,908 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 224 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-16 20:21:33,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 251 Invalid, 1752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-16 20:21:34,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107444 states.