./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/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_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/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_f89fb2dc-9525-4d3f-80d6-3408f1478e42/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 c4f9d381010c40c0aeec814019363f065d1b11569cf33ee927950bcd4ef29f20 --- 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 08:30:49,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:30:49,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:30:49,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:30:49,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:30:49,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:30:49,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:30:49,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:30:49,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:30:49,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:30:49,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:30:49,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:30:49,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:30:49,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:30:49,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:30:49,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:30:49,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:30:49,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:30:49,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:30:49,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:30:49,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:30:49,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:30:49,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:30:49,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:30:49,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:30:49,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:30:49,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:30:49,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:30:49,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:30:49,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:30:49,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:30:49,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:30:49,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:30:49,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:30:49,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:30:49,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:30:49,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:30:49,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:30:49,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:30:49,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:30:49,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:30:49,458 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 08:30:49,476 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:30:49,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:30:49,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:30:49,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:30:49,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:30:49,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:30:49,477 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:30:49,478 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:30:49,478 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:30:49,478 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:30:49,478 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:30:49,478 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:30:49,478 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:30:49,479 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:30:49,479 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:30:49,479 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:30:49,479 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:30:49,479 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:30:49,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:30:49,480 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:30:49,480 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:30:49,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:30:49,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:30:49,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:30:49,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:30:49,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:30:49,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:30:49,481 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 08:30:49,481 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:30:49,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:30:49,482 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:30:49,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:30:49,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:30:49,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:30:49,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:30:49,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:30:49,483 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:30:49,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:30:49,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:30:49,483 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:30:49,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:30:49,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:30:49,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:30:49,484 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_f89fb2dc-9525-4d3f-80d6-3408f1478e42/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4f9d381010c40c0aeec814019363f065d1b11569cf33ee927950bcd4ef29f20 [2022-12-14 08:30:49,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:30:49,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:30:49,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:30:49,712 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:30:49,712 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:30:49,713 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2022-12-14 08:30:52,344 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:30:52,520 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:30:52,521 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2022-12-14 08:30:52,531 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/data/1a718ab87/ba01b4ef3e2243df9500fa58e75d958c/FLAG0f7b0e13c [2022-12-14 08:30:52,542 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/data/1a718ab87/ba01b4ef3e2243df9500fa58e75d958c [2022-12-14 08:30:52,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:30:52,545 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:30:52,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:30:52,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:30:52,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:30:52,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:30:52" (1/1) ... [2022-12-14 08:30:52,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@402d35e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:30:52, skipping insertion in model container [2022-12-14 08:30:52,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:30:52" (1/1) ... [2022-12-14 08:30:52,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:30:52,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:30:52,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:30:53,005 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:30:53,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:30:53,084 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:30:53,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:30:53 WrapperNode [2022-12-14 08:30:53,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:30:53,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:30:53,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:30:53,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:30:53,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:30:53" (1/1) ... [2022-12-14 08:30:53,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:30:53" (1/1) ... [2022-12-14 08:30:53,129 INFO L138 Inliner]: procedures = 370, calls = 30, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 236 [2022-12-14 08:30:53,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:30:53,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:30:53,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:30:53,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:30:53,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:30:53" (1/1) ... [2022-12-14 08:30:53,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:30:53" (1/1) ... [2022-12-14 08:30:53,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:30:53" (1/1) ... [2022-12-14 08:30:53,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:30:53" (1/1) ... [2022-12-14 08:30:53,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:30:53" (1/1) ... [2022-12-14 08:30:53,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:30:53" (1/1) ... [2022-12-14 08:30:53,159 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:30:53" (1/1) ... [2022-12-14 08:30:53,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:30:53" (1/1) ... [2022-12-14 08:30:53,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:30:53,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:30:53,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:30:53,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:30:53,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:30:53" (1/1) ... [2022-12-14 08:30:53,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:30:53,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:30:53,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:30:53,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:30:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:30:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 08:30:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:30:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:30:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:30:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 08:30:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:30:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:30:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 08:30:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 08:30:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 08:30:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:30:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:30:53,226 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 08:30:53,348 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:30:53,349 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:30:53,751 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:30:53,760 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:30:53,761 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 08:30:53,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:30:53 BoogieIcfgContainer [2022-12-14 08:30:53,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:30:53,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:30:53,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:30:53,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:30:53,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:30:52" (1/3) ... [2022-12-14 08:30:53,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118f8215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:30:53, skipping insertion in model container [2022-12-14 08:30:53,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:30:53" (2/3) ... [2022-12-14 08:30:53,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118f8215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:30:53, skipping insertion in model container [2022-12-14 08:30:53,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:30:53" (3/3) ... [2022-12-14 08:30:53,772 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_11-arraylist_nr.i [2022-12-14 08:30:53,781 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 08:30:53,789 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:30:53,790 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-12-14 08:30:53,790 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 08:30:53,851 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 08:30:53,878 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 08:30:53,902 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 280 places, 282 transitions, 569 flow [2022-12-14 08:30:53,905 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 280 places, 282 transitions, 569 flow [2022-12-14 08:30:53,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 282 transitions, 569 flow [2022-12-14 08:30:53,991 INFO L130 PetriNetUnfolder]: 6/281 cut-off events. [2022-12-14 08:30:53,991 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 08:30:53,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 281 events. 6/281 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 392 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 155. Up to 2 conditions per place. [2022-12-14 08:30:54,000 INFO L119 LiptonReduction]: Number of co-enabled transitions 6512 [2022-12-14 08:31:34,296 WARN L233 SmtUtils]: Spent 11.75s on a formula simplification. DAG size of input: 166 DAG size of output: 158 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:31:45,586 WARN L233 SmtUtils]: Spent 8.11s on a formula simplification. DAG size of input: 166 DAG size of output: 158 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:32:01,080 WARN L233 SmtUtils]: Spent 12.93s on a formula simplification that was a NOOP. DAG size: 227 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:32:17,674 WARN L233 SmtUtils]: Spent 16.59s on a formula simplification that was a NOOP. DAG size: 196 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:32:44,699 WARN L233 SmtUtils]: Spent 27.02s on a formula simplification that was a NOOP. DAG size: 227 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:32:56,652 WARN L233 SmtUtils]: Spent 11.95s on a formula simplification that was a NOOP. DAG size: 196 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:33:47,852 WARN L233 SmtUtils]: Spent 51.18s on a formula simplification that was a NOOP. DAG size: 267 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:34:34,969 WARN L233 SmtUtils]: Spent 47.11s on a formula simplification that was a NOOP. DAG size: 253 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:35:23,296 WARN L233 SmtUtils]: Spent 48.32s on a formula simplification that was a NOOP. DAG size: 267 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:36:04,575 WARN L233 SmtUtils]: Spent 41.28s on a formula simplification that was a NOOP. DAG size: 253 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:36:04,597 INFO L134 LiptonReduction]: Checked pairs total: 51665 [2022-12-14 08:36:04,598 INFO L136 LiptonReduction]: Total number of compositions: 251 [2022-12-14 08:36:04,604 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 82 transitions, 169 flow [2022-12-14 08:36:04,650 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1057 states, 1021 states have (on average 2.018609206660137) internal successors, (2061), 1056 states have internal predecessors, (2061), 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 08:36:04,667 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:36:04,672 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;@2304919a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:36:04,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-12-14 08:36:04,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 1057 states, 1021 states have (on average 2.018609206660137) internal successors, (2061), 1056 states have internal predecessors, (2061), 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 08:36:04,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 08:36:04,681 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:36:04,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 08:36:04,682 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 08:36:04,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:36:04,687 INFO L85 PathProgramCache]: Analyzing trace with hash 932573, now seen corresponding path program 1 times [2022-12-14 08:36:04,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:36:04,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456503312] [2022-12-14 08:36:04,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:36:04,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:36:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:36:04,876 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 08:36:04,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:36:04,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456503312] [2022-12-14 08:36:04,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456503312] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:36:04,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:36:04,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:36:04,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938675201] [2022-12-14 08:36:04,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:36:04,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:36:04,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:36:04,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:36:04,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:36:04,901 INFO L87 Difference]: Start difference. First operand has 1057 states, 1021 states have (on average 2.018609206660137) internal successors, (2061), 1056 states have internal predecessors, (2061), 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 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 08:36:05,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:36:05,774 INFO L93 Difference]: Finished difference Result 1049 states and 2028 transitions. [2022-12-14 08:36:05,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:36:05,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 08:36:05,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:36:05,788 INFO L225 Difference]: With dead ends: 1049 [2022-12-14 08:36:05,788 INFO L226 Difference]: Without dead ends: 1049 [2022-12-14 08:36:05,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:36:05,790 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 08:36:05,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 08:36:05,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2022-12-14 08:36:05,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1049. [2022-12-14 08:36:05,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 1022 states have (on average 1.984344422700587) internal successors, (2028), 1048 states have internal predecessors, (2028), 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 08:36:05,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 2028 transitions. [2022-12-14 08:36:05,847 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 2028 transitions. Word has length 3 [2022-12-14 08:36:05,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:36:05,848 INFO L495 AbstractCegarLoop]: Abstraction has 1049 states and 2028 transitions. [2022-12-14 08:36:05,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 08:36:05,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 2028 transitions. [2022-12-14 08:36:05,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 08:36:05,848 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:36:05,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:36:05,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:36:05,849 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 08:36:05,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:36:05,849 INFO L85 PathProgramCache]: Analyzing trace with hash 555098909, now seen corresponding path program 1 times [2022-12-14 08:36:05,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:36:05,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643275028] [2022-12-14 08:36:05,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:36:05,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:36:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:36:05,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:36:05,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:36:05,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643275028] [2022-12-14 08:36:05,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643275028] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:36:05,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107855601] [2022-12-14 08:36:05,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:36:05,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:05,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:36:05,929 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:36:05,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:36:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:36:06,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 08:36:06,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:36:06,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 08:36:06,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:36:06,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107855601] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:36:06,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 08:36:06,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-12-14 08:36:06,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882044575] [2022-12-14 08:36:06,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:36:06,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:36:06,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:36:06,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:36:06,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:36:06,029 INFO L87 Difference]: Start difference. First operand 1049 states and 2028 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:36:06,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:36:06,620 INFO L93 Difference]: Finished difference Result 1050 states and 2029 transitions. [2022-12-14 08:36:06,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:36:06,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 08:36:06,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:36:06,628 INFO L225 Difference]: With dead ends: 1050 [2022-12-14 08:36:06,628 INFO L226 Difference]: Without dead ends: 1050 [2022-12-14 08:36:06,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:36:06,630 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:36:06,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 08:36:06,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2022-12-14 08:36:06,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1050. [2022-12-14 08:36:06,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1023 states have (on average 1.9833822091886608) internal successors, (2029), 1049 states have internal predecessors, (2029), 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 08:36:06,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 2029 transitions. [2022-12-14 08:36:06,659 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 2029 transitions. Word has length 12 [2022-12-14 08:36:06,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:36:06,659 INFO L495 AbstractCegarLoop]: Abstraction has 1050 states and 2029 transitions. [2022-12-14 08:36:06,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:36:06,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 2029 transitions. [2022-12-14 08:36:06,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 08:36:06,659 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:36:06,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:36:06,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:36:06,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:06,862 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 08:36:06,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:36:06,863 INFO L85 PathProgramCache]: Analyzing trace with hash 324884384, now seen corresponding path program 1 times [2022-12-14 08:36:06,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:36:06,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148815652] [2022-12-14 08:36:06,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:36:06,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:36:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:36:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 08:36:07,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:36:07,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148815652] [2022-12-14 08:36:07,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148815652] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:36:07,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194546759] [2022-12-14 08:36:07,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:36:07,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:07,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:36:07,128 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:36:07,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:36:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:36:07,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:36:07,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:36:07,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 08:36:07,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:36:07,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 08:36:07,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194546759] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:36:07,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2076232787] [2022-12-14 08:36:07,447 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:1621) 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:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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) [2022-12-14 08:36:07,448 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:36:07,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-14 08:36:07,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915266988] [2022-12-14 08:36:07,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 08:36:07,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 08:36:07,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:36:07,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 08:36:07,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 08:36:07,450 INFO L87 Difference]: Start difference. First operand 1050 states and 2029 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:36:09,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:36:09,321 INFO L93 Difference]: Finished difference Result 1053 states and 2032 transitions. [2022-12-14 08:36:09,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:36:09,322 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 08:36:09,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:36:09,325 INFO L225 Difference]: With dead ends: 1053 [2022-12-14 08:36:09,325 INFO L226 Difference]: Without dead ends: 1053 [2022-12-14 08:36:09,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 08:36:09,326 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 08:36:09,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 08:36:09,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2022-12-14 08:36:09,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1053. [2022-12-14 08:36:09,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 1026 states have (on average 1.9805068226120857) internal successors, (2032), 1052 states have internal predecessors, (2032), 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 08:36:09,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 2032 transitions. [2022-12-14 08:36:09,343 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 2032 transitions. Word has length 13 [2022-12-14 08:36:09,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:36:09,343 INFO L495 AbstractCegarLoop]: Abstraction has 1053 states and 2032 transitions. [2022-12-14 08:36:09,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:36:09,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 2032 transitions. [2022-12-14 08:36:09,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 08:36:09,343 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:36:09,343 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:36:09,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 08:36:09,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:09,544 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 08:36:09,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:36:09,545 INFO L85 PathProgramCache]: Analyzing trace with hash -243559551, now seen corresponding path program 2 times [2022-12-14 08:36:09,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:36:09,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957168258] [2022-12-14 08:36:09,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:36:09,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:36:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:36:09,812 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 08:36:09,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:36:09,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957168258] [2022-12-14 08:36:09,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957168258] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:36:09,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901697654] [2022-12-14 08:36:09,813 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 08:36:09,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:09,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:36:09,814 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:36:09,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 08:36:09,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 08:36:09,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:36:09,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 08:36:09,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:36:10,016 INFO L350 Elim1Store]: Elim1 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 08:36:10,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 28 treesize of output 27 [2022-12-14 08:36:10,047 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 08:36:10,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 40 treesize of output 42 [2022-12-14 08:36:10,073 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 08:36:10,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-12-14 08:36:10,097 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 08:36:10,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:36:10,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901697654] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:36:10,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 08:36:10,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2022-12-14 08:36:10,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073549998] [2022-12-14 08:36:10,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:36:10,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 08:36:10,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:36:10,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 08:36:10,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-14 08:36:10,099 INFO L87 Difference]: Start difference. First operand 1053 states and 2032 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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 08:36:11,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:36:11,758 INFO L93 Difference]: Finished difference Result 1841 states and 3549 transitions. [2022-12-14 08:36:11,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:36:11,759 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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 16 [2022-12-14 08:36:11,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:36:11,764 INFO L225 Difference]: With dead ends: 1841 [2022-12-14 08:36:11,764 INFO L226 Difference]: Without dead ends: 1841 [2022-12-14 08:36:11,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-14 08:36:11,765 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 69 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:36:11,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 47 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 08:36:11,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2022-12-14 08:36:11,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1201. [2022-12-14 08:36:11,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1174 states have (on average 1.979557069846678) internal successors, (2324), 1200 states have internal predecessors, (2324), 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 08:36:11,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 2324 transitions. [2022-12-14 08:36:11,789 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 2324 transitions. Word has length 16 [2022-12-14 08:36:11,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:36:11,790 INFO L495 AbstractCegarLoop]: Abstraction has 1201 states and 2324 transitions. [2022-12-14 08:36:11,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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 08:36:11,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 2324 transitions. [2022-12-14 08:36:11,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 08:36:11,790 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:36:11,790 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:36:11,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 08:36:11,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:11,992 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 08:36:11,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:36:11,993 INFO L85 PathProgramCache]: Analyzing trace with hash -61086018, now seen corresponding path program 1 times [2022-12-14 08:36:11,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:36:11,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726563912] [2022-12-14 08:36:11,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:36:11,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:36:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:36:12,282 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 08:36:12,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:36:12,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726563912] [2022-12-14 08:36:12,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726563912] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:36:12,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662035355] [2022-12-14 08:36:12,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:36:12,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:12,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:36:12,283 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:36:12,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 08:36:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:36:12,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 08:36:12,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:36:12,620 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 08:36:12,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:36:12,671 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 08:36:12,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662035355] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:36:12,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [872175095] [2022-12-14 08:36:12,671 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:1621) 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:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 08:36:12,671 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:36:12,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2022-12-14 08:36:12,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323310671] [2022-12-14 08:36:12,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 08:36:12,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 08:36:12,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:36:12,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 08:36:12,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-12-14 08:36:12,672 INFO L87 Difference]: Start difference. First operand 1201 states and 2324 transitions. Second operand has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:36:13,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:36:15,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:36:15,203 INFO L93 Difference]: Finished difference Result 1208 states and 2331 transitions. [2022-12-14 08:36:15,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 08:36:15,203 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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 17 [2022-12-14 08:36:15,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:36:15,208 INFO L225 Difference]: With dead ends: 1208 [2022-12-14 08:36:15,208 INFO L226 Difference]: Without dead ends: 1208 [2022-12-14 08:36:15,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-12-14 08:36:15,209 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 08:36:15,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 08:36:15,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-12-14 08:36:15,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1208. [2022-12-14 08:36:15,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 1181 states have (on average 1.9737510584250635) internal successors, (2331), 1207 states have internal predecessors, (2331), 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 08:36:15,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 2331 transitions. [2022-12-14 08:36:15,226 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 2331 transitions. Word has length 17 [2022-12-14 08:36:15,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:36:15,227 INFO L495 AbstractCegarLoop]: Abstraction has 1208 states and 2331 transitions. [2022-12-14 08:36:15,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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 08:36:15,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 2331 transitions. [2022-12-14 08:36:15,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 08:36:15,227 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:36:15,227 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:36:15,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 08:36:15,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:15,428 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 08:36:15,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:36:15,428 INFO L85 PathProgramCache]: Analyzing trace with hash -875077245, now seen corresponding path program 2 times [2022-12-14 08:36:15,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:36:15,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5379788] [2022-12-14 08:36:15,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:36:15,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:36:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:36:15,835 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 08:36:15,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:36:15,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5379788] [2022-12-14 08:36:15,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5379788] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:36:15,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954601969] [2022-12-14 08:36:15,836 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 08:36:15,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:15,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:36:15,837 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:36:15,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 08:36:16,171 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 08:36:16,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:36:16,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 08:36:16,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:36:16,191 INFO L350 Elim1Store]: Elim1 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 08:36:16,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:36:16,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 08:36:16,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:36:16,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:36:16,235 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 08:36:16,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 08:36:16,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:36:16,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:36:16,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:36:16,268 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 08:36:16,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-12-14 08:36:16,292 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-12-14 08:36:16,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:36:16,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954601969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:36:16,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 08:36:16,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2022-12-14 08:36:16,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844589844] [2022-12-14 08:36:16,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:36:16,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 08:36:16,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:36:16,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 08:36:16,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-14 08:36:16,294 INFO L87 Difference]: Start difference. First operand 1208 states and 2331 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:36:18,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:36:18,102 INFO L93 Difference]: Finished difference Result 1292 states and 2495 transitions. [2022-12-14 08:36:18,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 08:36:18,102 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 08:36:18,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:36:18,108 INFO L225 Difference]: With dead ends: 1292 [2022-12-14 08:36:18,108 INFO L226 Difference]: Without dead ends: 1292 [2022-12-14 08:36:18,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-14 08:36:18,109 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 133 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 08:36:18,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 211 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 08:36:18,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2022-12-14 08:36:18,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1292. [2022-12-14 08:36:18,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1265 states have (on average 1.9723320158102766) internal successors, (2495), 1291 states have internal predecessors, (2495), 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 08:36:18,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 2495 transitions. [2022-12-14 08:36:18,130 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 2495 transitions. Word has length 24 [2022-12-14 08:36:18,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:36:18,131 INFO L495 AbstractCegarLoop]: Abstraction has 1292 states and 2495 transitions. [2022-12-14 08:36:18,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:36:18,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 2495 transitions. [2022-12-14 08:36:18,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 08:36:18,131 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:36:18,131 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:36:18,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 08:36:18,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:18,333 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 08:36:18,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:36:18,334 INFO L85 PathProgramCache]: Analyzing trace with hash -442599023, now seen corresponding path program 1 times [2022-12-14 08:36:18,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:36:18,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185592060] [2022-12-14 08:36:18,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:36:18,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:36:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:36:18,755 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 08:36:18,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:36:18,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185592060] [2022-12-14 08:36:18,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185592060] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:36:18,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309665797] [2022-12-14 08:36:18,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:36:18,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:18,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:36:18,757 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:36:18,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 08:36:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:36:19,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 2396 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 08:36:19,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:36:19,450 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 08:36:19,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:36:19,467 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 08:36:19,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309665797] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:36:19,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2070342050] [2022-12-14 08:36:19,468 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:1621) 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:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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) [2022-12-14 08:36:19,468 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:36:19,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-12-14 08:36:19,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479900595] [2022-12-14 08:36:19,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 08:36:19,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 08:36:19,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:36:19,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 08:36:19,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-12-14 08:36:19,470 INFO L87 Difference]: Start difference. First operand 1292 states and 2495 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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 08:36:22,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:36:22,752 INFO L93 Difference]: Finished difference Result 1296 states and 2499 transitions. [2022-12-14 08:36:22,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 08:36:22,752 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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 [2022-12-14 08:36:22,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:36:22,755 INFO L225 Difference]: With dead ends: 1296 [2022-12-14 08:36:22,755 INFO L226 Difference]: Without dead ends: 1296 [2022-12-14 08:36:22,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-12-14 08:36:22,756 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:36:22,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 08:36:22,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2022-12-14 08:36:22,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1296. [2022-12-14 08:36:22,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1269 states have (on average 1.9692671394799055) internal successors, (2499), 1295 states have internal predecessors, (2499), 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 08:36:22,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 2499 transitions. [2022-12-14 08:36:22,777 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 2499 transitions. Word has length 27 [2022-12-14 08:36:22,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:36:22,777 INFO L495 AbstractCegarLoop]: Abstraction has 1296 states and 2499 transitions. [2022-12-14 08:36:22,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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 08:36:22,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 2499 transitions. [2022-12-14 08:36:22,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 08:36:22,778 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:36:22,778 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:36:22,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 08:36:22,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:22,980 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 08:36:22,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:36:22,981 INFO L85 PathProgramCache]: Analyzing trace with hash 2020854481, now seen corresponding path program 2 times [2022-12-14 08:36:22,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:36:22,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443751985] [2022-12-14 08:36:22,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:36:22,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:36:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:36:24,330 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 08:36:24,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:36:24,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443751985] [2022-12-14 08:36:24,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443751985] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:36:24,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10583625] [2022-12-14 08:36:24,331 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 08:36:24,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:24,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:36:24,332 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:36:24,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f89fb2dc-9525-4d3f-80d6-3408f1478e42/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process