./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/bin/utaipan-gh47qXpMRh --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 98c397d7a260fe673f9e4655b5dca942c114f9b11115010a8eef60e068615ab1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 14:39:52,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:39:52,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:39:52,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:39:52,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:39:52,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:39:52,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:39:52,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:39:52,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:39:52,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:39:52,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:39:52,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:39:52,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:39:52,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:39:52,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:39:52,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:39:52,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:39:52,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:39:52,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:39:52,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:39:52,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:39:52,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:39:52,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:39:52,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:39:52,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:39:52,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:39:52,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:39:52,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:39:52,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:39:52,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:39:52,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:39:52,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:39:52,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:39:52,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:39:52,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:39:52,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:39:52,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:39:52,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:39:52,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:39:52,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:39:52,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:39:52,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 14:39:52,479 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:39:52,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:39:52,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:39:52,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:39:52,480 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:39:52,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:39:52,480 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:39:52,480 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:39:52,480 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:39:52,480 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:39:52,480 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:39:52,481 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:39:52,481 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:39:52,481 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:39:52,481 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:39:52,481 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:39:52,481 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:39:52,481 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:39:52,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:39:52,482 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:39:52,482 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:39:52,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:39:52,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:39:52,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:39:52,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:39:52,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:39:52,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:39:52,483 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 14:39:52,483 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:39:52,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:39:52,483 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:39:52,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:39:52,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:39:52,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:39:52,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:39:52,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:39:52,484 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:39:52,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:39:52,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:39:52,484 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:39:52,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:39:52,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:39:52,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:39:52,485 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98c397d7a260fe673f9e4655b5dca942c114f9b11115010a8eef60e068615ab1 [2022-12-14 14:39:52,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:39:52,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:39:52,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:39:52,662 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:39:52,663 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:39:52,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2022-12-14 14:39:55,249 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:39:55,397 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:39:55,397 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2022-12-14 14:39:55,402 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/bin/utaipan-gh47qXpMRh/data/a883ba994/7888cf7b62544ef987bfebd698fb2dba/FLAG188baa4be [2022-12-14 14:39:55,411 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/bin/utaipan-gh47qXpMRh/data/a883ba994/7888cf7b62544ef987bfebd698fb2dba [2022-12-14 14:39:55,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:39:55,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:39:55,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:39:55,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:39:55,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:39:55,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:39:55" (1/1) ... [2022-12-14 14:39:55,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4ef84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:55, skipping insertion in model container [2022-12-14 14:39:55,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:39:55" (1/1) ... [2022-12-14 14:39:55,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:39:55,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:39:55,621 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/sv-benchmarks/c/weaver/chl-word-subst.wvr.c[3345,3358] [2022-12-14 14:39:55,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:39:55,632 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:39:55,664 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/sv-benchmarks/c/weaver/chl-word-subst.wvr.c[3345,3358] [2022-12-14 14:39:55,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:39:55,683 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:39:55,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:55 WrapperNode [2022-12-14 14:39:55,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:39:55,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:39:55,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:39:55,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:39:55,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:55" (1/1) ... [2022-12-14 14:39:55,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:55" (1/1) ... [2022-12-14 14:39:55,733 INFO L138 Inliner]: procedures = 25, calls = 45, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 268 [2022-12-14 14:39:55,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:39:55,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:39:55,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:39:55,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:39:55,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:55" (1/1) ... [2022-12-14 14:39:55,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:55" (1/1) ... [2022-12-14 14:39:55,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:55" (1/1) ... [2022-12-14 14:39:55,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:55" (1/1) ... [2022-12-14 14:39:55,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:55" (1/1) ... [2022-12-14 14:39:55,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:55" (1/1) ... [2022-12-14 14:39:55,777 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:55" (1/1) ... [2022-12-14 14:39:55,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:55" (1/1) ... [2022-12-14 14:39:55,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:39:55,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:39:55,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:39:55,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:39:55,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:55" (1/1) ... [2022-12-14 14:39:55,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:39:55,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:39:55,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:39:55,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613833fe-d2f8-4c9c-950e-7a4d8a2c722f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:39:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:39:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:39:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:39:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:39:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-14 14:39:55,855 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-14 14:39:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-14 14:39:55,855 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-14 14:39:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-14 14:39:55,855 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-14 14:39:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:39:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:39:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:39:55,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:39:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:39:55,858 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 14:39:55,963 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:39:55,965 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:39:56,582 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:39:56,594 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:39:56,594 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-14 14:39:56,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:39:56 BoogieIcfgContainer [2022-12-14 14:39:56,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:39:56,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:39:56,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:39:56,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:39:56,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:39:55" (1/3) ... [2022-12-14 14:39:56,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55542dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:39:56, skipping insertion in model container [2022-12-14 14:39:56,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:55" (2/3) ... [2022-12-14 14:39:56,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55542dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:39:56, skipping insertion in model container [2022-12-14 14:39:56,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:39:56" (3/3) ... [2022-12-14 14:39:56,606 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-subst.wvr.c [2022-12-14 14:39:56,615 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 14:39:56,626 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:39:56,626 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2022-12-14 14:39:56,626 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 14:39:56,747 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-14 14:39:56,784 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 14:39:56,797 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 645 places, 668 transitions, 1360 flow [2022-12-14 14:39:56,800 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 645 places, 668 transitions, 1360 flow [2022-12-14 14:39:56,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 645 places, 668 transitions, 1360 flow [2022-12-14 14:39:57,004 INFO L130 PetriNetUnfolder]: 33/665 cut-off events. [2022-12-14 14:39:57,004 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-14 14:39:57,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 665 events. 33/665 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1723 event pairs, 0 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 481. Up to 3 conditions per place. [2022-12-14 14:39:57,036 INFO L119 LiptonReduction]: Number of co-enabled transitions 89910 [2022-12-14 14:40:18,027 INFO L134 LiptonReduction]: Checked pairs total: 1076935 [2022-12-14 14:40:18,027 INFO L136 LiptonReduction]: Total number of compositions: 848 [2022-12-14 14:40:18,034 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 225 places, 236 transitions, 496 flow [2022-12-14 14:40:40,413 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1168662 states, 1152223 states have (on average 4.167976164336244) internal successors, (4802438), 1168661 states have internal predecessors, (4802438), 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) [2022-12-14 14:40:40,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:40:40,434 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@28581afe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:40:40,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 140 error locations. [2022-12-14 14:40:41,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 1168662 states, 1152223 states have (on average 4.167976164336244) internal successors, (4802438), 1168661 states have internal predecessors, (4802438), 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) [2022-12-14 14:40:41,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 14:40:41,894 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:40:41,894 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 14:40:41,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-12-14 14:40:41,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:40:41,900 INFO L85 PathProgramCache]: Analyzing trace with hash 2543, now seen corresponding path program 1 times [2022-12-14 14:40:41,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:40:41,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511142600] [2022-12-14 14:40:41,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:40:41,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:40:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:40:41,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:40:41,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:40:41,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511142600] [2022-12-14 14:40:41,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511142600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:40:41,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:40:41,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 14:40:41,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579728352] [2022-12-14 14:40:41,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:40:42,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:40:42,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:40:42,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:40:42,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:40:45,086 INFO L87 Difference]: Start difference. First operand has 1168662 states, 1152223 states have (on average 4.167976164336244) internal successors, (4802438), 1168661 states have internal predecessors, (4802438), 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) [2022-12-14 14:40:50,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:40:50,353 INFO L93 Difference]: Finished difference Result 449707 states and 1856849 transitions. [2022-12-14 14:40:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:40:50,355 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 [2022-12-14 14:40:50,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:40:53,261 INFO L225 Difference]: With dead ends: 449707 [2022-12-14 14:40:53,261 INFO L226 Difference]: Without dead ends: 449692 [2022-12-14 14:40:53,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:40:53,264 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:40:53,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:40:54,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449692 states. [2022-12-14 14:41:04,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449692 to 449692. [2022-12-14 14:41:05,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449692 states, 449413 states have (on average 4.1316428318717975) internal successors, (1856814), 449691 states have internal predecessors, (1856814), 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) [2022-12-14 14:41:08,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449692 states to 449692 states and 1856814 transitions. [2022-12-14 14:41:08,725 INFO L78 Accepts]: Start accepts. Automaton has 449692 states and 1856814 transitions. Word has length 1 [2022-12-14 14:41:08,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:41:08,726 INFO L495 AbstractCegarLoop]: Abstraction has 449692 states and 1856814 transitions. [2022-12-14 14:41:08,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:41:08,726 INFO L276 IsEmpty]: Start isEmpty. Operand 449692 states and 1856814 transitions. [2022-12-14 14:41:08,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 14:41:08,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:41:08,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:41:08,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:41:08,730 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-12-14 14:41:08,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:41:08,731 INFO L85 PathProgramCache]: Analyzing trace with hash -910672334, now seen corresponding path program 1 times [2022-12-14 14:41:08,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:41:08,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009145340] [2022-12-14 14:41:08,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:41:08,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:41:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:41:09,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:41:09,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:41:09,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009145340] [2022-12-14 14:41:09,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009145340] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:41:09,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:41:09,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:41:09,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693883233] [2022-12-14 14:41:09,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:41:09,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:41:09,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:41:09,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:41:09,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:41:09,150 INFO L87 Difference]: Start difference. First operand 449692 states and 1856814 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 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) [2022-12-14 14:41:13,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:41:13,441 INFO L93 Difference]: Finished difference Result 387495 states and 1589166 transitions. [2022-12-14 14:41:13,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:41:13,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 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 [2022-12-14 14:41:13,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:41:15,916 INFO L225 Difference]: With dead ends: 387495 [2022-12-14 14:41:15,916 INFO L226 Difference]: Without dead ends: 387495 [2022-12-14 14:41:15,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:41:15,917 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 218 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:41:15,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 71 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 14:41:16,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387495 states. [2022-12-14 14:41:25,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387495 to 387495. [2022-12-14 14:41:25,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387495 states, 387341 states have (on average 4.102757002228011) internal successors, (1589166), 387494 states have internal predecessors, (1589166), 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) [2022-12-14 14:41:28,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387495 states to 387495 states and 1589166 transitions. [2022-12-14 14:41:28,028 INFO L78 Accepts]: Start accepts. Automaton has 387495 states and 1589166 transitions. Word has length 13 [2022-12-14 14:41:28,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:41:28,029 INFO L495 AbstractCegarLoop]: Abstraction has 387495 states and 1589166 transitions. [2022-12-14 14:41:28,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 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) [2022-12-14 14:41:28,029 INFO L276 IsEmpty]: Start isEmpty. Operand 387495 states and 1589166 transitions. [2022-12-14 14:41:28,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 14:41:28,036 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:41:28,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:41:28,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:41:28,037 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-12-14 14:41:28,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:41:28,038 INFO L85 PathProgramCache]: Analyzing trace with hash -602313732, now seen corresponding path program 1 times [2022-12-14 14:41:28,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:41:28,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062793521] [2022-12-14 14:41:28,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:41:28,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:41:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:41:28,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:41:28,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:41:28,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062793521] [2022-12-14 14:41:28,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062793521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:41:28,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:41:28,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:41:28,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283809978] [2022-12-14 14:41:28,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:41:28,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:41:28,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:41:28,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:41:28,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:41:28,092 INFO L87 Difference]: Start difference. First operand 387495 states and 1589166 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) [2022-12-14 14:41:31,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:41:31,433 INFO L93 Difference]: Finished difference Result 396681 states and 1626187 transitions. [2022-12-14 14:41:31,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:41:31,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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 [2022-12-14 14:41:31,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:41:33,920 INFO L225 Difference]: With dead ends: 396681 [2022-12-14 14:41:33,921 INFO L226 Difference]: Without dead ends: 396681 [2022-12-14 14:41:33,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:41:33,922 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 95 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:41:33,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 152 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 14:41:35,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396681 states.