./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --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 4b8273370cd4ec5730806cf9b8f54c915e93daab6c48b9546d3920e402afdc55 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:22:38,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:22:38,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:22:38,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:22:38,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:22:38,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:22:38,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:22:38,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:22:38,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:22:38,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:22:38,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:22:38,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:22:38,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:22:38,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:22:38,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:22:38,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:22:38,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:22:38,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:22:38,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:22:38,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:22:38,833 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:22:38,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:22:38,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:22:38,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:22:38,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:22:38,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:22:38,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:22:38,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:22:38,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:22:38,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:22:38,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:22:38,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:22:38,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:22:38,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:22:38,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:22:38,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:22:38,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:22:38,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:22:38,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:22:38,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:22:38,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:22:38,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:22:38,851 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:22:38,870 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:22:38,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:22:38,871 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:22:38,871 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:22:38,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:22:38,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:22:38,872 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:22:38,872 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:22:38,872 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:22:38,873 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:22:38,873 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:22:38,873 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:22:38,873 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:22:38,874 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:22:38,874 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:22:38,874 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:22:38,874 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:22:38,874 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:22:38,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:22:38,875 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:22:38,875 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:22:38,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:22:38,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:22:38,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:22:38,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:22:38,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:22:38,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:22:38,877 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:22:38,877 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:22:38,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:22:38,877 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:22:38,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:22:38,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:22:38,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:22:38,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:22:38,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:22:38,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:22:38,878 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:22:38,878 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:22:38,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:22:38,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:22:38,879 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:22:38,879 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:22:38,879 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b8273370cd4ec5730806cf9b8f54c915e93daab6c48b9546d3920e402afdc55 [2022-04-18 20:22:39,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:22:39,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:22:39,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:22:39,125 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:22:39,125 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:22:39,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2022-04-18 20:22:39,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a8452f13a/04506d75f6a1411fac209c9a69ba2eaf/FLAG9d1ece575 [2022-04-18 20:22:39,521 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:22:39,522 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2022-04-18 20:22:39,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a8452f13a/04506d75f6a1411fac209c9a69ba2eaf/FLAG9d1ece575 [2022-04-18 20:22:39,534 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a8452f13a/04506d75f6a1411fac209c9a69ba2eaf [2022-04-18 20:22:39,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:22:39,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:22:39,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:22:39,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:22:39,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:22:39,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:22:39" (1/1) ... [2022-04-18 20:22:39,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46696c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:22:39, skipping insertion in model container [2022-04-18 20:22:39,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:22:39" (1/1) ... [2022-04-18 20:22:39,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:22:39,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:22:39,751 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2691,2704] [2022-04-18 20:22:39,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:22:39,758 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:22:39,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2691,2704] [2022-04-18 20:22:39,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:22:39,791 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:22:39,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:22:39 WrapperNode [2022-04-18 20:22:39,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:22:39,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:22:39,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:22:39,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:22:39,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:22:39" (1/1) ... [2022-04-18 20:22:39,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:22:39" (1/1) ... [2022-04-18 20:22:39,833 INFO L137 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 214 [2022-04-18 20:22:39,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:22:39,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:22:39,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:22:39,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:22:39,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:22:39" (1/1) ... [2022-04-18 20:22:39,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:22:39" (1/1) ... [2022-04-18 20:22:39,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:22:39" (1/1) ... [2022-04-18 20:22:39,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:22:39" (1/1) ... [2022-04-18 20:22:39,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:22:39" (1/1) ... [2022-04-18 20:22:39,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:22:39" (1/1) ... [2022-04-18 20:22:39,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:22:39" (1/1) ... [2022-04-18 20:22:39,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:22:39,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:22:39,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:22:39,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:22:39,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:22:39" (1/1) ... [2022-04-18 20:22:39,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:22:39,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:22:39,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 20:22:39,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 20:22:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:22:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:22:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:22:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 20:22:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 20:22:39,957 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 20:22:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 20:22:39,958 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 20:22:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 20:22:39,958 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 20:22:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:22:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 20:22:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 20:22:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 20:22:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:22:39,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:22:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:22:39,960 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 20:22:40,062 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:22:40,076 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:22:40,538 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:22:40,622 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:22:40,622 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-04-18 20:22:40,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:22:40 BoogieIcfgContainer [2022-04-18 20:22:40,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:22:40,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:22:40,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:22:40,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:22:40,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:22:39" (1/3) ... [2022-04-18 20:22:40,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523a6585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:22:40, skipping insertion in model container [2022-04-18 20:22:40,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:22:39" (2/3) ... [2022-04-18 20:22:40,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523a6585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:22:40, skipping insertion in model container [2022-04-18 20:22:40,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:22:40" (3/3) ... [2022-04-18 20:22:40,632 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2022-04-18 20:22:40,636 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:22:40,636 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:22:40,636 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2022-04-18 20:22:40,636 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:22:40,720 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 20:22:40,767 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:22:40,773 INFO L340 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 [2022-04-18 20:22:40,774 INFO L341 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2022-04-18 20:22:40,791 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:22:40,801 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 352 places, 362 transitions, 748 flow [2022-04-18 20:22:40,803 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 352 places, 362 transitions, 748 flow [2022-04-18 20:22:40,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 352 places, 362 transitions, 748 flow [2022-04-18 20:22:40,904 INFO L129 PetriNetUnfolder]: 20/359 cut-off events. [2022-04-18 20:22:40,904 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 20:22:40,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 359 events. 20/359 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 442 event pairs, 0 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 284. Up to 3 conditions per place. [2022-04-18 20:22:40,918 INFO L116 LiptonReduction]: Number of co-enabled transitions 9382 [2022-04-18 20:25:15,671 INFO L131 LiptonReduction]: Checked pairs total: 60906 [2022-04-18 20:25:15,672 INFO L133 LiptonReduction]: Total number of compositions: 433 [2022-04-18 20:25:15,680 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 99 transitions, 222 flow [2022-04-18 20:25:16,599 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 27076 states, 25734 states have (on average 4.32983601461102) internal successors, (111424), 27075 states have internal predecessors, (111424), 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) [2022-04-18 20:25:16,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 27076 states, 25734 states have (on average 4.32983601461102) internal successors, (111424), 27075 states have internal predecessors, (111424), 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) [2022-04-18 20:25:16,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 20:25:16,649 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:25:16,649 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 20:25:16,650 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 20:25:16,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:25:16,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1455, now seen corresponding path program 1 times [2022-04-18 20:25:16,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:25:16,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275964882] [2022-04-18 20:25:16,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:25:16,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:25:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:25:16,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:25:16,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:25:16,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275964882] [2022-04-18 20:25:16,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275964882] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:25:16,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:25:16,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 20:25:16,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682271970] [2022-04-18 20:25:16,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:25:16,753 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 20:25:16,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:25:16,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 20:25:16,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 20:25:16,854 INFO L87 Difference]: Start difference. First operand has 27076 states, 25734 states have (on average 4.32983601461102) internal successors, (111424), 27075 states have internal predecessors, (111424), 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) [2022-04-18 20:25:17,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:25:17,055 INFO L93 Difference]: Finished difference Result 3066 states and 12103 transitions. [2022-04-18 20:25:17,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 20:25:17,070 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 [2022-04-18 20:25:17,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:25:17,115 INFO L225 Difference]: With dead ends: 3066 [2022-04-18 20:25:17,115 INFO L226 Difference]: Without dead ends: 3035 [2022-04-18 20:25:17,116 INFO L912 BasicCegarLoop]: 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 [2022-04-18 20:25:17,118 INFO L913 BasicCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:25:17,119 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:25:17,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3035 states. [2022-04-18 20:25:17,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3035 to 3035. [2022-04-18 20:25:17,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3035 states, 3029 states have (on average 3.966985803895675) internal successors, (12016), 3034 states have internal predecessors, (12016), 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) [2022-04-18 20:25:17,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3035 states to 3035 states and 12016 transitions. [2022-04-18 20:25:17,316 INFO L78 Accepts]: Start accepts. Automaton has 3035 states and 12016 transitions. Word has length 1 [2022-04-18 20:25:17,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:25:17,317 INFO L478 AbstractCegarLoop]: Abstraction has 3035 states and 12016 transitions. [2022-04-18 20:25:17,317 INFO L479 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) [2022-04-18 20:25:17,317 INFO L276 IsEmpty]: Start isEmpty. Operand 3035 states and 12016 transitions. [2022-04-18 20:25:17,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-18 20:25:17,319 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:25:17,319 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:25:17,320 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 20:25:17,320 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 20:25:17,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:25:17,322 INFO L85 PathProgramCache]: Analyzing trace with hash -104216599, now seen corresponding path program 1 times [2022-04-18 20:25:17,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:25:17,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573823058] [2022-04-18 20:25:17,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:25:17,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:25:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:25:17,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:25:17,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:25:17,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573823058] [2022-04-18 20:25:17,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573823058] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:25:17,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:25:17,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 20:25:17,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300931369] [2022-04-18 20:25:17,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:25:17,512 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 20:25:17,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:25:17,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 20:25:17,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:25:17,513 INFO L87 Difference]: Start difference. First operand 3035 states and 12016 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:25:17,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:25:17,775 INFO L93 Difference]: Finished difference Result 3861 states and 15023 transitions. [2022-04-18 20:25:17,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 20:25:17,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-04-18 20:25:17,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:25:17,796 INFO L225 Difference]: With dead ends: 3861 [2022-04-18 20:25:17,796 INFO L226 Difference]: Without dead ends: 3861 [2022-04-18 20:25:17,797 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-04-18 20:25:17,797 INFO L913 BasicCegarLoop]: 37 mSDtfsCounter, 94 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:25:17,798 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 101 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 20:25:17,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3861 states. [2022-04-18 20:25:17,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3861 to 3551. [2022-04-18 20:25:17,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3551 states, 3545 states have (on average 3.9675599435825104) internal successors, (14065), 3550 states have internal predecessors, (14065), 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) [2022-04-18 20:25:17,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3551 states to 3551 states and 14065 transitions. [2022-04-18 20:25:17,971 INFO L78 Accepts]: Start accepts. Automaton has 3551 states and 14065 transitions. Word has length 13 [2022-04-18 20:25:17,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:25:17,972 INFO L478 AbstractCegarLoop]: Abstraction has 3551 states and 14065 transitions. [2022-04-18 20:25:17,972 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:25:17,972 INFO L276 IsEmpty]: Start isEmpty. Operand 3551 states and 14065 transitions. [2022-04-18 20:25:17,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-18 20:25:17,978 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:25:17,978 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:25:17,978 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 20:25:17,979 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 20:25:17,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:25:17,980 INFO L85 PathProgramCache]: Analyzing trace with hash 807118447, now seen corresponding path program 1 times [2022-04-18 20:25:17,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:25:17,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732619531] [2022-04-18 20:25:17,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:25:17,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:25:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:25:18,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:25:18,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:25:18,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732619531] [2022-04-18 20:25:18,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732619531] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:25:18,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:25:18,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:25:18,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527779312] [2022-04-18 20:25:18,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:25:18,148 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:25:18,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:25:18,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:25:18,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:25:18,149 INFO L87 Difference]: Start difference. First operand 3551 states and 14065 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:25:18,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:25:18,660 INFO L93 Difference]: Finished difference Result 5056 states and 19981 transitions. [2022-04-18 20:25:18,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:25:18,661 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-04-18 20:25:18,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:25:18,687 INFO L225 Difference]: With dead ends: 5056 [2022-04-18 20:25:18,687 INFO L226 Difference]: Without dead ends: 5056 [2022-04-18 20:25:18,687 INFO L912 BasicCegarLoop]: 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 [2022-04-18 20:25:18,688 INFO L913 BasicCegarLoop]: 42 mSDtfsCounter, 80 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 20:25:18,688 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 72 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 20:25:18,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5056 states. [2022-04-18 20:25:18,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5056 to 4651. [2022-04-18 20:25:18,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4651 states, 4645 states have (on average 4.022604951560818) internal successors, (18685), 4650 states have internal predecessors, (18685), 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) [2022-04-18 20:25:18,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4651 states to 4651 states and 18685 transitions. [2022-04-18 20:25:18,839 INFO L78 Accepts]: Start accepts. Automaton has 4651 states and 18685 transitions. Word has length 15 [2022-04-18 20:25:18,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:25:18,840 INFO L478 AbstractCegarLoop]: Abstraction has 4651 states and 18685 transitions. [2022-04-18 20:25:18,840 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:25:18,840 INFO L276 IsEmpty]: Start isEmpty. Operand 4651 states and 18685 transitions. [2022-04-18 20:25:18,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-18 20:25:18,842 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:25:18,842 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:25:18,842 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 20:25:18,842 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 20:25:18,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:25:18,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1141452378, now seen corresponding path program 1 times [2022-04-18 20:25:18,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:25:18,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118056645] [2022-04-18 20:25:18,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:25:18,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:25:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:25:18,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 20:25:18,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:25:18,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118056645] [2022-04-18 20:25:18,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118056645] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:25:18,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:25:18,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:25:18,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855207560] [2022-04-18 20:25:18,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:25:18,993 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:25:18,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:25:18,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:25:18,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:25:18,994 INFO L87 Difference]: Start difference. First operand 4651 states and 18685 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-04-18 20:25:19,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:25:19,816 INFO L93 Difference]: Finished difference Result 6658 states and 26882 transitions. [2022-04-18 20:25:19,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:25:19,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2022-04-18 20:25:19,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:25:19,844 INFO L225 Difference]: With dead ends: 6658 [2022-04-18 20:25:19,845 INFO L226 Difference]: Without dead ends: 6658 [2022-04-18 20:25:19,845 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:25:19,846 INFO L913 BasicCegarLoop]: 35 mSDtfsCounter, 63 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-18 20:25:19,846 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 69 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-18 20:25:19,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6658 states. [2022-04-18 20:25:19,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6658 to 5356. [2022-04-18 20:25:19,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 5350 states have (on average 4.031588785046729) internal successors, (21569), 5355 states have internal predecessors, (21569), 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) [2022-04-18 20:25:19,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 21569 transitions. [2022-04-18 20:25:19,993 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 21569 transitions. Word has length 16 [2022-04-18 20:25:19,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:25:19,993 INFO L478 AbstractCegarLoop]: Abstraction has 5356 states and 21569 transitions. [2022-04-18 20:25:19,993 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-04-18 20:25:19,993 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 21569 transitions. [2022-04-18 20:25:19,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-18 20:25:19,996 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:25:19,996 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:25:19,999 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 20:25:19,999 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 20:25:20,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:25:20,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1650704250, now seen corresponding path program 1 times [2022-04-18 20:25:20,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:25:20,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814904286] [2022-04-18 20:25:20,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:25:20,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:25:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:25:20,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:25:20,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:25:20,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814904286] [2022-04-18 20:25:20,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814904286] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:25:20,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:25:20,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 20:25:20,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871140245] [2022-04-18 20:25:20,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:25:20,099 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 20:25:20,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:25:20,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 20:25:20,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:25:20,100 INFO L87 Difference]: Start difference. First operand 5356 states and 21569 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 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) [2022-04-18 20:25:20,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:25:20,371 INFO L93 Difference]: Finished difference Result 5421 states and 21335 transitions. [2022-04-18 20:25:20,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 20:25:20,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 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 [2022-04-18 20:25:20,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:25:20,390 INFO L225 Difference]: With dead ends: 5421 [2022-04-18 20:25:20,391 INFO L226 Difference]: Without dead ends: 5421 [2022-04-18 20:25:20,391 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-04-18 20:25:20,392 INFO L913 BasicCegarLoop]: 41 mSDtfsCounter, 77 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:25:20,392 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 109 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 20:25:20,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5421 states. [2022-04-18 20:25:20,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5421 to 5349. [2022-04-18 20:25:20,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5349 states, 5343 states have (on average 3.964813775032753) internal successors, (21184), 5348 states have internal predecessors, (21184), 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) [2022-04-18 20:25:20,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5349 states to 5349 states and 21184 transitions. [2022-04-18 20:25:20,605 INFO L78 Accepts]: Start accepts. Automaton has 5349 states and 21184 transitions. Word has length 18 [2022-04-18 20:25:20,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:25:20,605 INFO L478 AbstractCegarLoop]: Abstraction has 5349 states and 21184 transitions. [2022-04-18 20:25:20,605 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 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) [2022-04-18 20:25:20,606 INFO L276 IsEmpty]: Start isEmpty. Operand 5349 states and 21184 transitions. [2022-04-18 20:25:20,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-04-18 20:25:20,608 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:25:20,609 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:25:20,609 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 20:25:20,609 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 20:25:20,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:25:20,610 INFO L85 PathProgramCache]: Analyzing trace with hash -673746579, now seen corresponding path program 1 times [2022-04-18 20:25:20,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:25:20,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225180115] [2022-04-18 20:25:20,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:25:20,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:25:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:25:20,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 20:25:20,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:25:20,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225180115] [2022-04-18 20:25:20,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225180115] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:25:20,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:25:20,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:25:20,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725342664] [2022-04-18 20:25:20,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:25:20,801 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:25:20,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:25:20,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:25:20,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:25:20,802 INFO L87 Difference]: Start difference. First operand 5349 states and 21184 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:25:21,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:25:21,489 INFO L93 Difference]: Finished difference Result 14267 states and 56792 transitions. [2022-04-18 20:25:21,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-18 20:25:21,490 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-04-18 20:25:21,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:25:21,541 INFO L225 Difference]: With dead ends: 14267 [2022-04-18 20:25:21,541 INFO L226 Difference]: Without dead ends: 14267 [2022-04-18 20:25:21,542 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2022-04-18 20:25:21,542 INFO L913 BasicCegarLoop]: 47 mSDtfsCounter, 350 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 20:25:21,542 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 93 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 20:25:21,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14267 states. [2022-04-18 20:25:21,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14267 to 6490. [2022-04-18 20:25:21,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6490 states, 6484 states have (on average 4.069555829734732) internal successors, (26387), 6489 states have internal predecessors, (26387), 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) [2022-04-18 20:25:21,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6490 states to 6490 states and 26387 transitions. [2022-04-18 20:25:21,757 INFO L78 Accepts]: Start accepts. Automaton has 6490 states and 26387 transitions. Word has length 21 [2022-04-18 20:25:21,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:25:21,757 INFO L478 AbstractCegarLoop]: Abstraction has 6490 states and 26387 transitions. [2022-04-18 20:25:21,757 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:25:21,757 INFO L276 IsEmpty]: Start isEmpty. Operand 6490 states and 26387 transitions. [2022-04-18 20:25:21,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-04-18 20:25:21,763 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:25:21,764 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:25:21,764 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 20:25:21,764 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 20:25:21,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:25:21,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1990703017, now seen corresponding path program 1 times [2022-04-18 20:25:21,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:25:21,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146188534] [2022-04-18 20:25:21,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:25:21,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:25:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:25:22,059 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 20:25:22,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:25:22,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146188534] [2022-04-18 20:25:22,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146188534] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:25:22,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:25:22,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-18 20:25:22,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948341454] [2022-04-18 20:25:22,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:25:22,062 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-18 20:25:22,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:25:22,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-18 20:25:22,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-04-18 20:25:22,063 INFO L87 Difference]: Start difference. First operand 6490 states and 26387 transitions. Second operand has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:25:22,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:25:22,749 INFO L93 Difference]: Finished difference Result 6105 states and 24725 transitions. [2022-04-18 20:25:22,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 20:25:22,749 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-04-18 20:25:22,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:25:22,768 INFO L225 Difference]: With dead ends: 6105 [2022-04-18 20:25:22,769 INFO L226 Difference]: Without dead ends: 6105 [2022-04-18 20:25:22,769 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-04-18 20:25:22,769 INFO L913 BasicCegarLoop]: 30 mSDtfsCounter, 235 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-04-18 20:25:22,770 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 84 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-18 20:25:22,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6105 states. [2022-04-18 20:25:22,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6105 to 4565. [2022-04-18 20:25:22,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4565 states, 4562 states have (on average 3.9625164401578257) internal successors, (18077), 4564 states have internal predecessors, (18077), 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) [2022-04-18 20:25:22,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4565 states to 4565 states and 18077 transitions. [2022-04-18 20:25:22,867 INFO L78 Accepts]: Start accepts. Automaton has 4565 states and 18077 transitions. Word has length 21 [2022-04-18 20:25:22,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:25:22,868 INFO L478 AbstractCegarLoop]: Abstraction has 4565 states and 18077 transitions. [2022-04-18 20:25:22,868 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:25:22,868 INFO L276 IsEmpty]: Start isEmpty. Operand 4565 states and 18077 transitions. [2022-04-18 20:25:22,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-04-18 20:25:22,872 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:25:22,872 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:25:22,872 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 20:25:22,872 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 20:25:22,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:25:22,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1826963759, now seen corresponding path program 2 times [2022-04-18 20:25:22,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:25:22,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965368649] [2022-04-18 20:25:22,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:25:22,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:25:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:25:23,001 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 20:25:23,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:25:23,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965368649] [2022-04-18 20:25:23,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965368649] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:25:23,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:25:23,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:25:23,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797372577] [2022-04-18 20:25:23,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:25:23,002 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:25:23,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:25:23,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:25:23,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:25:23,003 INFO L87 Difference]: Start difference. First operand 4565 states and 18077 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:25:23,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:25:23,866 INFO L93 Difference]: Finished difference Result 10537 states and 41842 transitions. [2022-04-18 20:25:23,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-18 20:25:23,867 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-04-18 20:25:23,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:25:23,894 INFO L225 Difference]: With dead ends: 10537 [2022-04-18 20:25:23,894 INFO L226 Difference]: Without dead ends: 10537 [2022-04-18 20:25:23,895 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2022-04-18 20:25:23,895 INFO L913 BasicCegarLoop]: 55 mSDtfsCounter, 251 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-04-18 20:25:23,895 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 120 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-18 20:25:23,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10537 states. [2022-04-18 20:25:23,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10537 to 4639. [2022-04-18 20:25:23,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 3.9710957722174287) internal successors, (18410), 4638 states have internal predecessors, (18410), 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) [2022-04-18 20:25:24,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 18410 transitions. [2022-04-18 20:25:24,009 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 18410 transitions. Word has length 21 [2022-04-18 20:25:24,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:25:24,009 INFO L478 AbstractCegarLoop]: Abstraction has 4639 states and 18410 transitions. [2022-04-18 20:25:24,010 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:25:24,010 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 18410 transitions. [2022-04-18 20:25:24,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 20:25:24,014 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:25:24,014 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:25:24,014 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 20:25:24,014 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 20:25:24,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:25:24,015 INFO L85 PathProgramCache]: Analyzing trace with hash 957880522, now seen corresponding path program 1 times [2022-04-18 20:25:24,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:25:24,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835047877] [2022-04-18 20:25:24,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:25:24,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:25:24,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:25:24,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 20:25:24,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:25:24,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835047877] [2022-04-18 20:25:24,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835047877] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:25:24,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:25:24,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:25:24,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736327755] [2022-04-18 20:25:24,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:25:24,080 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:25:24,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:25:24,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:25:24,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:25:24,081 INFO L87 Difference]: Start difference. First operand 4639 states and 18410 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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) [2022-04-18 20:25:24,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:25:24,542 INFO L93 Difference]: Finished difference Result 5044 states and 20034 transitions. [2022-04-18 20:25:24,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:25:24,543 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 22 [2022-04-18 20:25:24,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:25:24,557 INFO L225 Difference]: With dead ends: 5044 [2022-04-18 20:25:24,557 INFO L226 Difference]: Without dead ends: 5044 [2022-04-18 20:25:24,557 INFO L912 BasicCegarLoop]: 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 [2022-04-18 20:25:24,558 INFO L913 BasicCegarLoop]: 39 mSDtfsCounter, 56 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:25:24,558 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 60 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:25:24,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5044 states. [2022-04-18 20:25:24,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5044 to 5044. [2022-04-18 20:25:24,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5044 states, 5041 states have (on average 3.9742114659789722) internal successors, (20034), 5043 states have internal predecessors, (20034), 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) [2022-04-18 20:25:24,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5044 states to 5044 states and 20034 transitions. [2022-04-18 20:25:24,639 INFO L78 Accepts]: Start accepts. Automaton has 5044 states and 20034 transitions. Word has length 22 [2022-04-18 20:25:24,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:25:24,640 INFO L478 AbstractCegarLoop]: Abstraction has 5044 states and 20034 transitions. [2022-04-18 20:25:24,640 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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) [2022-04-18 20:25:24,640 INFO L276 IsEmpty]: Start isEmpty. Operand 5044 states and 20034 transitions. [2022-04-18 20:25:24,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-18 20:25:24,644 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:25:24,645 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:25:24,645 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 20:25:24,645 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 20:25:24,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:25:24,645 INFO L85 PathProgramCache]: Analyzing trace with hash 834383122, now seen corresponding path program 3 times [2022-04-18 20:25:24,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:25:24,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959435694] [2022-04-18 20:25:24,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:25:24,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:25:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:25:24,712 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 20:25:24,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:25:24,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959435694] [2022-04-18 20:25:24,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959435694] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 20:25:24,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74200618] [2022-04-18 20:25:24,713 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-18 20:25:24,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:25:24,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:25:24,717 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 20:25:24,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-18 20:26:09,152 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-18 20:26:09,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-18 20:26:09,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-18 20:26:09,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 20:26:09,407 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 20:26:09,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 20:26:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 20:26:09,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74200618] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 20:26:09,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [332341370] [2022-04-18 20:26:09,502 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-04-18 20:26:09,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 20:26:09,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-04-18 20:26:09,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737427442] [2022-04-18 20:26:09,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 20:26:09,507 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 20:26:09,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:26:09,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 20:26:09,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-04-18 20:26:09,508 INFO L87 Difference]: Start difference. First operand 5044 states and 20034 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 states have internal predecessors, (44), 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) [2022-04-18 20:26:09,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:26:10,000 INFO L93 Difference]: Finished difference Result 11703 states and 45718 transitions. [2022-04-18 20:26:10,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 20:26:10,000 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 states have internal predecessors, (44), 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 23 [2022-04-18 20:26:10,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:26:10,029 INFO L225 Difference]: With dead ends: 11703 [2022-04-18 20:26:10,029 INFO L226 Difference]: Without dead ends: 11703 [2022-04-18 20:26:10,030 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2022-04-18 20:26:10,030 INFO L913 BasicCegarLoop]: 95 mSDtfsCounter, 624 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:26:10,031 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [624 Valid, 406 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:26:10,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11703 states. [2022-04-18 20:26:10,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11703 to 9419. [2022-04-18 20:26:10,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9419 states, 9416 states have (on average 4.076146983857265) internal successors, (38381), 9418 states have internal predecessors, (38381), 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) [2022-04-18 20:26:10,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9419 states to 9419 states and 38381 transitions. [2022-04-18 20:26:10,271 INFO L78 Accepts]: Start accepts. Automaton has 9419 states and 38381 transitions. Word has length 23 [2022-04-18 20:26:10,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:26:10,271 INFO L478 AbstractCegarLoop]: Abstraction has 9419 states and 38381 transitions. [2022-04-18 20:26:10,271 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 states have internal predecessors, (44), 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) [2022-04-18 20:26:10,272 INFO L276 IsEmpty]: Start isEmpty. Operand 9419 states and 38381 transitions. [2022-04-18 20:26:10,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-04-18 20:26:10,279 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:26:10,279 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:26:10,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-18 20:26:10,499 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-04-18 20:26:10,499 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 20:26:10,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:26:10,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1756805430, now seen corresponding path program 1 times [2022-04-18 20:26:10,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:26:10,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605325737] [2022-04-18 20:26:10,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:26:10,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:26:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:26:10,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:26:10,583 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:26:10,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605325737] [2022-04-18 20:26:10,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605325737] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:26:10,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:26:10,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:26:10,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456679308] [2022-04-18 20:26:10,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:26:10,584 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:26:10,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:26:10,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:26:10,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:26:10,585 INFO L87 Difference]: Start difference. First operand 9419 states and 38381 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-04-18 20:26:11,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:26:11,378 INFO L93 Difference]: Finished difference Result 9494 states and 38591 transitions. [2022-04-18 20:26:11,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:26:11,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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 25 [2022-04-18 20:26:11,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:26:11,401 INFO L225 Difference]: With dead ends: 9494 [2022-04-18 20:26:11,401 INFO L226 Difference]: Without dead ends: 7217 [2022-04-18 20:26:11,401 INFO L912 BasicCegarLoop]: 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 [2022-04-18 20:26:11,402 INFO L913 BasicCegarLoop]: 39 mSDtfsCounter, 32 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 20:26:11,402 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 81 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 20:26:11,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7217 states. [2022-04-18 20:26:11,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7217 to 7217. [2022-04-18 20:26:11,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7217 states, 7214 states have (on average 3.861796506792348) internal successors, (27859), 7216 states have internal predecessors, (27859), 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) [2022-04-18 20:26:11,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7217 states to 7217 states and 27859 transitions. [2022-04-18 20:26:11,522 INFO L78 Accepts]: Start accepts. Automaton has 7217 states and 27859 transitions. Word has length 25 [2022-04-18 20:26:11,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:26:11,522 INFO L478 AbstractCegarLoop]: Abstraction has 7217 states and 27859 transitions. [2022-04-18 20:26:11,522 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-04-18 20:26:11,523 INFO L276 IsEmpty]: Start isEmpty. Operand 7217 states and 27859 transitions. [2022-04-18 20:26:11,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-04-18 20:26:11,528 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:26:11,528 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:26:11,528 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 20:26:11,528 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 20:26:11,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:26:11,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1475030467, now seen corresponding path program 4 times [2022-04-18 20:26:11,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:26:11,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392445890] [2022-04-18 20:26:11,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:26:11,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:26:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:26:11,805 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-04-18 20:26:11,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:26:11,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392445890] [2022-04-18 20:26:11,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392445890] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 20:26:11,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301642688] [2022-04-18 20:26:11,806 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-04-18 20:26:11,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:26:11,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:26:11,807 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 20:26:11,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-18 20:26:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:26:11,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 88 conjunts are in the unsatisfiable core [2022-04-18 20:26:11,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 20:26:12,022 INFO L356 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-04-18 20:26:12,023 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 42 [2022-04-18 20:26:12,090 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-04-18 20:26:12,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-04-18 20:26:12,143 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-04-18 20:26:12,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-04-18 20:26:12,358 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-04-18 20:26:12,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,404 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-04-18 20:26:12,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,457 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2022-04-18 20:26:12,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,521 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2022-04-18 20:26:12,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:26:12,629 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 30 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 105 [2022-04-18 20:26:12,636 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 83 [2022-04-18 20:26:12,690 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-04-18 20:26:12,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 20:26:12,965 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1102 (Array Int Int)) (v_ArrVal_1098 (Array Int Int))) (= (let ((.cse0 (* c_thread1Thread1of1ForFork1_~i~0 4))) (select (select (store (store (store |c_#race| c_~A~0.base (let ((.cse1 (* c_thread2Thread1of1ForFork2_~i~1 4))) (store (store (store (store (store (select |c_#race| c_~A~0.base) (+ c_~A~0.offset .cse0 3) 0) (+ c_~A~0.offset .cse1) 0) (+ c_~A~0.offset .cse1 1) 0) (+ c_~A~0.offset 2 .cse1) 0) (+ c_~A~0.offset 3 .cse1) 0))) c_~B~0.base v_ArrVal_1098) c_~C~0.base v_ArrVal_1102) c_~A~0.base) (+ c_~A~0.offset .cse0))) 0)) (forall ((v_ArrVal_1102 (Array Int Int)) (v_ArrVal_1098 (Array Int Int))) (= (let ((.cse2 (* c_thread1Thread1of1ForFork1_~i~0 4))) (select (select (store (store (store |c_#race| c_~A~0.base (let ((.cse3 (* c_thread2Thread1of1ForFork2_~i~1 4))) (store (store (store (store (store (select |c_#race| c_~A~0.base) (+ c_~A~0.offset .cse2 3) 0) (+ c_~A~0.offset .cse3) 0) (+ c_~A~0.offset .cse3 1) 0) (+ c_~A~0.offset 2 .cse3) 0) (+ c_~A~0.offset 3 .cse3) 0))) c_~B~0.base v_ArrVal_1098) c_~C~0.base v_ArrVal_1102) c_~A~0.base) (+ c_~A~0.offset 2 .cse2))) 0)) (forall ((v_ArrVal_1102 (Array Int Int)) (v_ArrVal_1098 (Array Int Int))) (= (let ((.cse4 (* c_thread1Thread1of1ForFork1_~i~0 4))) (select (select (store (store (store |c_#race| c_~A~0.base (let ((.cse5 (* c_thread2Thread1of1ForFork2_~i~1 4))) (store (store (store (store (store (select |c_#race| c_~A~0.base) (+ c_~A~0.offset .cse4 3) 0) (+ c_~A~0.offset .cse5) 0) (+ c_~A~0.offset .cse5 1) 0) (+ c_~A~0.offset 2 .cse5) 0) (+ c_~A~0.offset 3 .cse5) 0))) c_~B~0.base v_ArrVal_1098) c_~C~0.base v_ArrVal_1102) c_~A~0.base) (+ c_~A~0.offset .cse4 1))) 0)) (forall ((v_ArrVal_1102 (Array Int Int)) (v_ArrVal_1098 (Array Int Int))) (= (let ((.cse6 (+ c_~A~0.offset (* c_thread1Thread1of1ForFork1_~i~0 4) 3))) (select (select (store (store (store |c_#race| c_~A~0.base (let ((.cse7 (* c_thread2Thread1of1ForFork2_~i~1 4))) (store (store (store (store (store (select |c_#race| c_~A~0.base) .cse6 0) (+ c_~A~0.offset .cse7) 0) (+ c_~A~0.offset .cse7 1) 0) (+ c_~A~0.offset 2 .cse7) 0) (+ c_~A~0.offset 3 .cse7) 0))) c_~B~0.base v_ArrVal_1098) c_~C~0.base v_ArrVal_1102) c_~A~0.base) .cse6)) 0))) is different from false [2022-04-18 20:26:12,988 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1102 (Array Int Int)) (v_ArrVal_1098 (Array Int Int))) (= (let ((.cse1 (* c_thread1Thread1of1ForFork1_~i~0 4))) (let ((.cse0 (+ c_~A~0.offset 2 .cse1))) (select (select (store (store (store |c_#race| c_~A~0.base (let ((.cse2 (* c_thread2Thread1of1ForFork2_~i~1 4))) (store (store (store (store (store (store (select |c_#race| c_~A~0.base) .cse0 0) (+ c_~A~0.offset .cse1 3) 0) (+ c_~A~0.offset .cse2) 0) (+ c_~A~0.offset .cse2 1) 0) (+ c_~A~0.offset 2 .cse2) 0) (+ c_~A~0.offset 3 .cse2) 0))) c_~B~0.base v_ArrVal_1098) c_~C~0.base v_ArrVal_1102) c_~A~0.base) .cse0))) 0)) (forall ((v_ArrVal_1102 (Array Int Int)) (v_ArrVal_1098 (Array Int Int))) (= (let ((.cse3 (* c_thread1Thread1of1ForFork1_~i~0 4))) (select (select (store (store (store |c_#race| c_~A~0.base (let ((.cse4 (* c_thread2Thread1of1ForFork2_~i~1 4))) (store (store (store (store (store (store (select |c_#race| c_~A~0.base) (+ c_~A~0.offset 2 .cse3) 0) (+ c_~A~0.offset .cse3 3) 0) (+ c_~A~0.offset .cse4) 0) (+ c_~A~0.offset .cse4 1) 0) (+ c_~A~0.offset 2 .cse4) 0) (+ c_~A~0.offset 3 .cse4) 0))) c_~B~0.base v_ArrVal_1098) c_~C~0.base v_ArrVal_1102) c_~A~0.base) (+ c_~A~0.offset .cse3))) 0)) (forall ((v_ArrVal_1102 (Array Int Int)) (v_ArrVal_1098 (Array Int Int))) (= (let ((.cse5 (* c_thread1Thread1of1ForFork1_~i~0 4))) (let ((.cse6 (+ c_~A~0.offset .cse5 3))) (select (select (store (store (store |c_#race| c_~A~0.base (let ((.cse7 (* c_thread2Thread1of1ForFork2_~i~1 4))) (store (store (store (store (store (store (select |c_#race| c_~A~0.base) (+ c_~A~0.offset 2 .cse5) 0) .cse6 0) (+ c_~A~0.offset .cse7) 0) (+ c_~A~0.offset .cse7 1) 0) (+ c_~A~0.offset 2 .cse7) 0) (+ c_~A~0.offset 3 .cse7) 0))) c_~B~0.base v_ArrVal_1098) c_~C~0.base v_ArrVal_1102) c_~A~0.base) .cse6))) 0)) (forall ((v_ArrVal_1102 (Array Int Int)) (v_ArrVal_1098 (Array Int Int))) (= (let ((.cse8 (* c_thread1Thread1of1ForFork1_~i~0 4))) (select (select (store (store (store |c_#race| c_~A~0.base (let ((.cse9 (* c_thread2Thread1of1ForFork2_~i~1 4))) (store (store (store (store (store (store (select |c_#race| c_~A~0.base) (+ c_~A~0.offset 2 .cse8) 0) (+ c_~A~0.offset .cse8 3) 0) (+ c_~A~0.offset .cse9) 0) (+ c_~A~0.offset .cse9 1) 0) (+ c_~A~0.offset 2 .cse9) 0) (+ c_~A~0.offset 3 .cse9) 0))) c_~B~0.base v_ArrVal_1098) c_~C~0.base v_ArrVal_1102) c_~A~0.base) (+ c_~A~0.offset .cse8 1))) 0))) is different from false [2022-04-18 20:26:13,010 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1102 (Array Int Int)) (v_ArrVal_1098 (Array Int Int))) (= (let ((.cse0 (* c_thread1Thread1of1ForFork1_~i~0 4))) (let ((.cse1 (+ c_~A~0.offset .cse0 3))) (select (select (store (store (store |c_#race| c_~A~0.base (let ((.cse2 (* c_thread2Thread1of1ForFork2_~i~1 4))) (store (store (store (store (store (store (store (select |c_#race| c_~A~0.base) (+ c_~A~0.offset .cse0 1) 0) (+ c_~A~0.offset 2 .cse0) 0) .cse1 0) (+ c_~A~0.offset .cse2) 0) (+ c_~A~0.offset .cse2 1) 0) (+ c_~A~0.offset 2 .cse2) 0) (+ c_~A~0.offset 3 .cse2) 0))) c_~B~0.base v_ArrVal_1098) c_~C~0.base v_ArrVal_1102) c_~A~0.base) .cse1))) 0)) (forall ((v_ArrVal_1102 (Array Int Int)) (v_ArrVal_1098 (Array Int Int))) (= (let ((.cse3 (* c_thread1Thread1of1ForFork1_~i~0 4))) (select (select (store (store (store |c_#race| c_~A~0.base (let ((.cse4 (* c_thread2Thread1of1ForFork2_~i~1 4))) (store (store (store (store (store (store (store (select |c_#race| c_~A~0.base) (+ c_~A~0.offset .cse3 1) 0) (+ c_~A~0.offset 2 .cse3) 0) (+ c_~A~0.offset .cse3 3) 0) (+ c_~A~0.offset .cse4) 0) (+ c_~A~0.offset .cse4 1) 0) (+ c_~A~0.offset 2 .cse4) 0) (+ c_~A~0.offset 3 .cse4) 0))) c_~B~0.base v_ArrVal_1098) c_~C~0.base v_ArrVal_1102) c_~A~0.base) (+ c_~A~0.offset .cse3))) 0)) (forall ((v_ArrVal_1102 (Array Int Int)) (v_ArrVal_1098 (Array Int Int))) (= (let ((.cse6 (* c_thread1Thread1of1ForFork1_~i~0 4))) (let ((.cse5 (+ c_~A~0.offset .cse6 1))) (select (select (store (store (store |c_#race| c_~A~0.base (let ((.cse7 (* c_thread2Thread1of1ForFork2_~i~1 4))) (store (store (store (store (store (store (store (select |c_#race| c_~A~0.base) .cse5 0) (+ c_~A~0.offset 2 .cse6) 0) (+ c_~A~0.offset .cse6 3) 0) (+ c_~A~0.offset .cse7) 0) (+ c_~A~0.offset .cse7 1) 0) (+ c_~A~0.offset 2 .cse7) 0) (+ c_~A~0.offset 3 .cse7) 0))) c_~B~0.base v_ArrVal_1098) c_~C~0.base v_ArrVal_1102) c_~A~0.base) .cse5))) 0)) (forall ((v_ArrVal_1102 (Array Int Int)) (v_ArrVal_1098 (Array Int Int))) (= (let ((.cse8 (* c_thread1Thread1of1ForFork1_~i~0 4))) (let ((.cse9 (+ c_~A~0.offset 2 .cse8))) (select (select (store (store (store |c_#race| c_~A~0.base (let ((.cse10 (* c_thread2Thread1of1ForFork2_~i~1 4))) (store (store (store (store (store (store (store (select |c_#race| c_~A~0.base) (+ c_~A~0.offset .cse8 1) 0) .cse9 0) (+ c_~A~0.offset .cse8 3) 0) (+ c_~A~0.offset .cse10) 0) (+ c_~A~0.offset .cse10 1) 0) (+ c_~A~0.offset 2 .cse10) 0) (+ c_~A~0.offset 3 .cse10) 0))) c_~B~0.base v_ArrVal_1098) c_~C~0.base v_ArrVal_1102) c_~A~0.base) .cse9))) 0))) is different from false [2022-04-18 20:26:13,187 INFO L356 Elim1Store]: treesize reduction 1871, result has 5.2 percent of original size [2022-04-18 20:26:13,188 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 85 treesize of output 121 [2022-04-18 20:26:13,196 INFO L356 Elim1Store]: treesize reduction 490, result has 0.2 percent of original size [2022-04-18 20:26:13,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 256 treesize of output 168 [2022-04-18 20:26:13,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 92 [2022-04-18 20:26:13,203 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 39 [2022-04-18 20:26:13,292 INFO L356 Elim1Store]: treesize reduction 1973, result has 0.1 percent of original size [2022-04-18 20:26:13,293 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 85 treesize of output 1 [2022-04-18 20:26:13,401 INFO L356 Elim1Store]: treesize reduction 1973, result has 0.1 percent of original size [2022-04-18 20:26:13,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 84 treesize of output 1 [2022-04-18 20:26:13,469 INFO L356 Elim1Store]: treesize reduction 1973, result has 0.1 percent of original size [2022-04-18 20:26:13,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 85 treesize of output 1 [2022-04-18 20:26:13,696 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 2 times theorem prover too weak. 9 trivial. 0 not checked. [2022-04-18 20:26:13,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301642688] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 20:26:13,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [954188909] [2022-04-18 20:26:13,697 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-04-18 20:26:13,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 20:26:13,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 9] total 31 [2022-04-18 20:26:13,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634398949] [2022-04-18 20:26:13,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 20:26:13,698 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-04-18 20:26:13,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:26:13,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-04-18 20:26:13,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=715, Unknown=18, NotChecked=174, Total=1056 [2022-04-18 20:26:13,698 INFO L87 Difference]: Start difference. First operand 7217 states and 27859 transitions. Second operand has 33 states, 32 states have (on average 2.0) internal successors, (64), 32 states have internal predecessors, (64), 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) [2022-04-18 20:26:17,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:26:17,804 INFO L93 Difference]: Finished difference Result 13649 states and 52463 transitions. [2022-04-18 20:26:17,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-04-18 20:26:17,805 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.0) internal successors, (64), 32 states have internal predecessors, (64), 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 26 [2022-04-18 20:26:17,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:26:17,860 INFO L225 Difference]: With dead ends: 13649 [2022-04-18 20:26:17,861 INFO L226 Difference]: Without dead ends: 13316 [2022-04-18 20:26:17,861 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 32 SyntacticMatches, 6 SemanticMatches, 50 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=415, Invalid=1927, Unknown=22, NotChecked=288, Total=2652 [2022-04-18 20:26:17,862 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 589 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 3336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1610 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-18 20:26:17,862 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [589 Valid, 871 Invalid, 3336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1572 Invalid, 0 Unknown, 1610 Unchecked, 2.8s Time] [2022-04-18 20:26:17,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13316 states. [2022-04-18 20:26:18,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13316 to 8757. [2022-04-18 20:26:18,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8757 states, 8754 states have (on average 3.911811743203107) internal successors, (34244), 8756 states have internal predecessors, (34244), 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) [2022-04-18 20:26:18,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8757 states to 8757 states and 34244 transitions. [2022-04-18 20:26:18,072 INFO L78 Accepts]: Start accepts. Automaton has 8757 states and 34244 transitions. Word has length 26 [2022-04-18 20:26:18,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:26:18,073 INFO L478 AbstractCegarLoop]: Abstraction has 8757 states and 34244 transitions. [2022-04-18 20:26:18,073 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.0) internal successors, (64), 32 states have internal predecessors, (64), 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) [2022-04-18 20:26:18,073 INFO L276 IsEmpty]: Start isEmpty. Operand 8757 states and 34244 transitions. [2022-04-18 20:26:18,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-04-18 20:26:18,079 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:26:18,079 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:26:18,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-18 20:26:18,296 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-04-18 20:26:18,296 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 20:26:18,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:26:18,296 INFO L85 PathProgramCache]: Analyzing trace with hash 313918739, now seen corresponding path program 5 times [2022-04-18 20:26:18,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:26:18,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249653500] [2022-04-18 20:26:18,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:26:18,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:26:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:26:18,638 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-04-18 20:26:18,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:26:18,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249653500] [2022-04-18 20:26:18,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249653500] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 20:26:18,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215529278] [2022-04-18 20:26:18,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-04-18 20:26:18,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:26:18,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:26:18,640 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 20:26:18,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-18 20:26:18,793 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-04-18 20:26:18,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-18 20:26:18,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 59 conjunts are in the unsatisfiable core [2022-04-18 20:26:18,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 20:26:18,844 INFO L356 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-04-18 20:26:18,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 42 [2022-04-18 20:26:18,878 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-04-18 20:26:18,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-04-18 20:26:18,923 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-04-18 20:26:18,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-04-18 20:26:19,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-04-18 20:26:19,110 INFO L356 Elim1Store]: treesize reduction 502, result has 8.6 percent of original size [2022-04-18 20:26:19,111 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 57 treesize of output 71 [2022-04-18 20:26:19,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2022-04-18 20:26:20,462 INFO L356 Elim1Store]: treesize reduction 371, result has 13.7 percent of original size [2022-04-18 20:26:20,462 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 75 treesize of output 86 [2022-04-18 20:26:22,490 INFO L356 Elim1Store]: treesize reduction 500, result has 12.4 percent of original size [2022-04-18 20:26:22,490 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 87 treesize of output 101 [2022-04-18 20:26:23,884 INFO L356 Elim1Store]: treesize reduction 647, result has 11.4 percent of original size [2022-04-18 20:26:23,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 99 treesize of output 116 [2022-04-18 20:26:23,924 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-18 20:26:23,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 20:26:23,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215529278] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:26:23,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-18 20:26:23,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 19 [2022-04-18 20:26:23,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264753875] [2022-04-18 20:26:23,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:26:23,925 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-18 20:26:23,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:26:23,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-18 20:26:23,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=345, Unknown=5, NotChecked=0, Total=420 [2022-04-18 20:26:23,926 INFO L87 Difference]: Start difference. First operand 8757 states and 34244 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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) [2022-04-18 20:26:25,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:26:25,800 INFO L93 Difference]: Finished difference Result 11743 states and 46570 transitions. [2022-04-18 20:26:25,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-18 20:26:25,802 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 26 [2022-04-18 20:26:25,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:26:25,829 INFO L225 Difference]: With dead ends: 11743 [2022-04-18 20:26:25,830 INFO L226 Difference]: Without dead ends: 11743 [2022-04-18 20:26:25,830 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=177, Invalid=574, Unknown=5, NotChecked=0, Total=756 [2022-04-18 20:26:25,830 INFO L913 BasicCegarLoop]: 32 mSDtfsCounter, 160 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 277 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 20:26:25,831 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 125 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 168 Invalid, 0 Unknown, 277 Unchecked, 0.3s Time] [2022-04-18 20:26:25,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11743 states. [2022-04-18 20:26:25,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11743 to 9333. [2022-04-18 20:26:25,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9333 states, 9330 states have (on average 3.92561629153269) internal successors, (36626), 9332 states have internal predecessors, (36626), 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) [2022-04-18 20:26:26,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9333 states to 9333 states and 36626 transitions. [2022-04-18 20:26:26,005 INFO L78 Accepts]: Start accepts. Automaton has 9333 states and 36626 transitions. Word has length 26 [2022-04-18 20:26:26,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:26:26,005 INFO L478 AbstractCegarLoop]: Abstraction has 9333 states and 36626 transitions. [2022-04-18 20:26:26,005 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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) [2022-04-18 20:26:26,005 INFO L276 IsEmpty]: Start isEmpty. Operand 9333 states and 36626 transitions. [2022-04-18 20:26:26,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-04-18 20:26:26,011 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:26:26,011 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:26:26,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-18 20:26:26,227 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-04-18 20:26:26,228 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 20:26:26,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:26:26,228 INFO L85 PathProgramCache]: Analyzing trace with hash 204392033, now seen corresponding path program 1 times [2022-04-18 20:26:26,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:26:26,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497994364] [2022-04-18 20:26:26,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:26:26,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:26:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:26:26,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 20:26:26,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:26:26,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497994364] [2022-04-18 20:26:26,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497994364] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:26:26,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:26:26,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:26:26,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112352678] [2022-04-18 20:26:26,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:26:26,384 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-18 20:26:26,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:26:26,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-18 20:26:26,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-18 20:26:26,385 INFO L87 Difference]: Start difference. First operand 9333 states and 36626 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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) [2022-04-18 20:26:26,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:26:26,945 INFO L93 Difference]: Finished difference Result 17434 states and 67601 transitions. [2022-04-18 20:26:26,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 20:26:26,948 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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 27 [2022-04-18 20:26:26,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:26:27,000 INFO L225 Difference]: With dead ends: 17434 [2022-04-18 20:26:27,000 INFO L226 Difference]: Without dead ends: 16990 [2022-04-18 20:26:27,000 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-04-18 20:26:27,001 INFO L913 BasicCegarLoop]: 40 mSDtfsCounter, 277 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:26:27,001 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 92 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:26:27,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16990 states. [2022-04-18 20:26:27,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16990 to 11725. [2022-04-18 20:26:27,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11725 states, 11722 states have (on average 3.908292100324177) internal successors, (45813), 11724 states have internal predecessors, (45813), 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) [2022-04-18 20:26:27,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11725 states to 11725 states and 45813 transitions. [2022-04-18 20:26:27,265 INFO L78 Accepts]: Start accepts. Automaton has 11725 states and 45813 transitions. Word has length 27 [2022-04-18 20:26:27,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:26:27,265 INFO L478 AbstractCegarLoop]: Abstraction has 11725 states and 45813 transitions. [2022-04-18 20:26:27,265 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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) [2022-04-18 20:26:27,265 INFO L276 IsEmpty]: Start isEmpty. Operand 11725 states and 45813 transitions. [2022-04-18 20:26:27,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-04-18 20:26:27,274 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:26:27,274 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:26:27,274 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 20:26:27,274 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 20:26:27,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:26:27,275 INFO L85 PathProgramCache]: Analyzing trace with hash -455081313, now seen corresponding path program 2 times [2022-04-18 20:26:27,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:26:27,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35646330] [2022-04-18 20:26:27,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:26:27,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:26:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:26:27,400 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 20:26:27,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:26:27,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35646330] [2022-04-18 20:26:27,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35646330] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:26:27,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:26:27,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:26:27,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16040250] [2022-04-18 20:26:27,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:26:27,403 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-18 20:26:27,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:26:27,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-18 20:26:27,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-18 20:26:27,403 INFO L87 Difference]: Start difference. First operand 11725 states and 45813 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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) [2022-04-18 20:26:28,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:26:28,009 INFO L93 Difference]: Finished difference Result 16974 states and 66186 transitions. [2022-04-18 20:26:28,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 20:26:28,010 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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 27 [2022-04-18 20:26:28,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:26:28,056 INFO L225 Difference]: With dead ends: 16974 [2022-04-18 20:26:28,056 INFO L226 Difference]: Without dead ends: 16530 [2022-04-18 20:26:28,057 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2022-04-18 20:26:28,057 INFO L913 BasicCegarLoop]: 55 mSDtfsCounter, 215 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 20:26:28,057 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 121 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 20:26:28,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16530 states. [2022-04-18 20:26:28,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16530 to 10763. [2022-04-18 20:26:28,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10763 states, 10760 states have (on average 3.9104089219330853) internal successors, (42076), 10762 states have internal predecessors, (42076), 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) [2022-04-18 20:26:28,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10763 states to 10763 states and 42076 transitions. [2022-04-18 20:26:28,317 INFO L78 Accepts]: Start accepts. Automaton has 10763 states and 42076 transitions. Word has length 27 [2022-04-18 20:26:28,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:26:28,317 INFO L478 AbstractCegarLoop]: Abstraction has 10763 states and 42076 transitions. [2022-04-18 20:26:28,317 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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) [2022-04-18 20:26:28,317 INFO L276 IsEmpty]: Start isEmpty. Operand 10763 states and 42076 transitions. [2022-04-18 20:26:28,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-04-18 20:26:28,325 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:26:28,325 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:26:28,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 20:26:28,326 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 20:26:28,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:26:28,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1484769484, now seen corresponding path program 6 times [2022-04-18 20:26:28,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:26:28,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385229441] [2022-04-18 20:26:28,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:26:28,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:26:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:26:28,456 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-04-18 20:26:28,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:26:28,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385229441] [2022-04-18 20:26:28,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385229441] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 20:26:28,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211559967] [2022-04-18 20:26:28,457 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-18 20:26:28,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:26:28,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:26:28,459 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 20:26:28,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process Killed by 15