./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/fibonacci.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c13b27-d245-4de4-a0bb-d063179229fc/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c13b27-d245-4de4-a0bb-d063179229fc/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c13b27-d245-4de4-a0bb-d063179229fc/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c13b27-d245-4de4-a0bb-d063179229fc/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/fibonacci.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c13b27-d245-4de4-a0bb-d063179229fc/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c13b27-d245-4de4-a0bb-d063179229fc/bin/utaipan-verify-QoSU8krkJ5 --witnessprinter.witness.filename witness --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 115f061be4541a19227bc1624a8b38d08b679b43ee58fd41d4a05fa6a8fd007e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:53:40,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:53:41,109 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c13b27-d245-4de4-a0bb-d063179229fc/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-21 19:53:41,119 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:53:41,120 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:53:41,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:53:41,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:53:41,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:53:41,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:53:41,166 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:53:41,167 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:53:41,167 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:53:41,168 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:53:41,169 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:53:41,170 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:53:41,170 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:53:41,170 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:53:41,171 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:53:41,171 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:53:41,172 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:53:41,172 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:53:41,172 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:53:41,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:53:41,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:53:41,174 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:53:41,175 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:53:41,175 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:53:41,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:53:41,176 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:53:41,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:53:41,178 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:53:41,178 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 19:53:41,178 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 19:53:41,178 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:53:41,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:53:41,179 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:53:41,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:53:41,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:53:41,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:53:41,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:53:41,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:53:41,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:53:41,180 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:53:41,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:53:41,181 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:53:41,181 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:53:41,181 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:53:41,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:53:41,182 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c13b27-d245-4de4-a0bb-d063179229fc/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c13b27-d245-4de4-a0bb-d063179229fc/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 115f061be4541a19227bc1624a8b38d08b679b43ee58fd41d4a05fa6a8fd007e [2023-11-21 19:53:41,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:53:41,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:53:41,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:53:41,559 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:53:41,559 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:53:41,561 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c13b27-d245-4de4-a0bb-d063179229fc/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/weaver/fibonacci.wvr.c [2023-11-21 19:53:44,723 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:53:45,016 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:53:45,017 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c13b27-d245-4de4-a0bb-d063179229fc/sv-benchmarks/c/weaver/fibonacci.wvr.c [2023-11-21 19:53:45,027 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c13b27-d245-4de4-a0bb-d063179229fc/bin/utaipan-verify-QoSU8krkJ5/data/164ddd19e/d92b50840e1c41f2968400b6499e4210/FLAGfdbfbcfe4 [2023-11-21 19:53:45,044 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c13b27-d245-4de4-a0bb-d063179229fc/bin/utaipan-verify-QoSU8krkJ5/data/164ddd19e/d92b50840e1c41f2968400b6499e4210 [2023-11-21 19:53:45,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:53:45,053 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:53:45,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:53:45,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:53:45,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:53:45,064 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:53:45" (1/1) ... [2023-11-21 19:53:45,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25210f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:45, skipping insertion in model container [2023-11-21 19:53:45,066 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:53:45" (1/1) ... [2023-11-21 19:53:45,102 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:53:45,405 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:53:45,417 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:53:45,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:53:45,472 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:53:45,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:45 WrapperNode [2023-11-21 19:53:45,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:53:45,474 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:53:45,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:53:45,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:53:45,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:45" (1/1) ... [2023-11-21 19:53:45,494 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:45" (1/1) ... [2023-11-21 19:53:45,534 INFO L138 Inliner]: procedures = 23, calls = 29, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 276 [2023-11-21 19:53:45,535 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:53:45,536 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:53:45,536 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:53:45,536 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:53:45,547 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:45" (1/1) ... [2023-11-21 19:53:45,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:45" (1/1) ... [2023-11-21 19:53:45,552 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:45" (1/1) ... [2023-11-21 19:53:45,553 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:45" (1/1) ... [2023-11-21 19:53:45,565 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:45" (1/1) ... [2023-11-21 19:53:45,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:45" (1/1) ... [2023-11-21 19:53:45,572 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:45" (1/1) ... [2023-11-21 19:53:45,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:45" (1/1) ... [2023-11-21 19:53:45,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:53:45,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:53:45,580 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:53:45,580 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:53:45,581 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:45" (1/1) ... [2023-11-21 19:53:45,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:53:45,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c13b27-d245-4de4-a0bb-d063179229fc/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:53:45,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c13b27-d245-4de4-a0bb-d063179229fc/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:53:45,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c13b27-d245-4de4-a0bb-d063179229fc/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:53:45,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:53:45,655 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 19:53:45,655 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 19:53:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 19:53:45,656 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 19:53:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:53:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:53:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:53:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:53:45,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:53:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:53:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:53:45,659 WARN L212 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 19:53:45,787 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:53:45,789 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:53:46,377 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:53:46,402 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:53:46,402 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 19:53:46,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:53:46 BoogieIcfgContainer [2023-11-21 19:53:46,404 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:53:46,408 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:53:46,408 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:53:46,412 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:53:46,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:53:45" (1/3) ... [2023-11-21 19:53:46,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8caf16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:53:46, skipping insertion in model container [2023-11-21 19:53:46,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:45" (2/3) ... [2023-11-21 19:53:46,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8caf16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:53:46, skipping insertion in model container [2023-11-21 19:53:46,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:53:46" (3/3) ... [2023-11-21 19:53:46,415 INFO L112 eAbstractionObserver]: Analyzing ICFG fibonacci.wvr.c [2023-11-21 19:53:46,430 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 19:53:46,443 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:53:46,443 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-11-21 19:53:46,444 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 19:53:46,623 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 19:53:46,672 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 357 places, 365 transitions, 744 flow [2023-11-21 19:53:50,891 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 93714 states, 93492 states have (on average 2.9942134086338936) internal successors, (279935), 93713 states have internal predecessors, (279935), 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) [2023-11-21 19:53:50,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:53:50,948 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=LoopHeads, 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;@2484000e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:53:50,949 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2023-11-21 19:53:51,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 93714 states, 93492 states have (on average 2.9942134086338936) internal successors, (279935), 93713 states have internal predecessors, (279935), 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) [2023-11-21 19:53:51,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 19:53:51,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:53:51,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:53:51,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-11-21 19:53:51,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:53:51,130 INFO L85 PathProgramCache]: Analyzing trace with hash 2098703942, now seen corresponding path program 1 times [2023-11-21 19:53:51,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:53:51,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38515042] [2023-11-21 19:53:51,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:53:51,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:53:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:53:51,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:53:51,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:53:51,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38515042] [2023-11-21 19:53:51,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38515042] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:53:51,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:53:51,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:53:51,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542226667] [2023-11-21 19:53:51,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:53:51,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:53:51,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:53:51,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:53:51,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:53:51,562 INFO L87 Difference]: Start difference. First operand has 93714 states, 93492 states have (on average 2.9942134086338936) internal successors, (279935), 93713 states have internal predecessors, (279935), 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, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-21 19:53:53,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:53:53,252 INFO L93 Difference]: Finished difference Result 93713 states and 270258 transitions. [2023-11-21 19:53:53,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:53:53,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-11-21 19:53:53,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:53:54,027 INFO L225 Difference]: With dead ends: 93713 [2023-11-21 19:53:54,027 INFO L226 Difference]: Without dead ends: 93676 [2023-11-21 19:53:54,029 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 [2023-11-21 19:53:54,032 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 2 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:53:54,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 639 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:53:54,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93676 states. [2023-11-21 19:53:57,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93676 to 93676. [2023-11-21 19:53:58,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93676 states, 93283 states have (on average 2.896058231403364) internal successors, (270153), 93675 states have internal predecessors, (270153), 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) [2023-11-21 19:53:59,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93676 states to 93676 states and 270153 transitions. [2023-11-21 19:53:59,361 INFO L78 Accepts]: Start accepts. Automaton has 93676 states and 270153 transitions. Word has length 23 [2023-11-21 19:53:59,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:53:59,362 INFO L495 AbstractCegarLoop]: Abstraction has 93676 states and 270153 transitions. [2023-11-21 19:53:59,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-21 19:53:59,363 INFO L276 IsEmpty]: Start isEmpty. Operand 93676 states and 270153 transitions. [2023-11-21 19:53:59,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-21 19:53:59,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:53:59,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:53:59,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:53:59,366 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-11-21 19:53:59,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:53:59,367 INFO L85 PathProgramCache]: Analyzing trace with hash 328675890, now seen corresponding path program 1 times [2023-11-21 19:53:59,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:53:59,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807274764] [2023-11-21 19:53:59,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:53:59,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:53:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:53:59,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:53:59,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:53:59,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807274764] [2023-11-21 19:53:59,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807274764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:53:59,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:53:59,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:53:59,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747971386] [2023-11-21 19:53:59,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:53:59,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:53:59,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:53:59,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:53:59,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:53:59,492 INFO L87 Difference]: Start difference. First operand 93676 states and 270153 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-11-21 19:54:00,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:00,507 INFO L93 Difference]: Finished difference Result 93675 states and 270152 transitions. [2023-11-21 19:54:00,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:00,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2023-11-21 19:54:00,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:00,947 INFO L225 Difference]: With dead ends: 93675 [2023-11-21 19:54:00,948 INFO L226 Difference]: Without dead ends: 93675 [2023-11-21 19:54:00,948 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 [2023-11-21 19:54:00,950 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 2 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:00,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 626 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:54:01,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93675 states. [2023-11-21 19:54:03,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93675 to 93675. [2023-11-21 19:54:04,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93675 states, 93283 states have (on average 2.8960475113364708) internal successors, (270152), 93674 states have internal predecessors, (270152), 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) [2023-11-21 19:54:04,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93675 states to 93675 states and 270152 transitions. [2023-11-21 19:54:04,934 INFO L78 Accepts]: Start accepts. Automaton has 93675 states and 270152 transitions. Word has length 31 [2023-11-21 19:54:04,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:04,936 INFO L495 AbstractCegarLoop]: Abstraction has 93675 states and 270152 transitions. [2023-11-21 19:54:04,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-11-21 19:54:04,939 INFO L276 IsEmpty]: Start isEmpty. Operand 93675 states and 270152 transitions. [2023-11-21 19:54:04,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-21 19:54:04,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:04,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:04,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:54:04,943 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-11-21 19:54:04,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:04,944 INFO L85 PathProgramCache]: Analyzing trace with hash -657526493, now seen corresponding path program 1 times [2023-11-21 19:54:04,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:04,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848714863] [2023-11-21 19:54:04,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:04,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:05,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:05,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:05,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848714863] [2023-11-21 19:54:05,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848714863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:05,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:05,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:54:05,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014166572] [2023-11-21 19:54:05,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:05,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:05,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:05,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:05,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:05,056 INFO L87 Difference]: Start difference. First operand 93675 states and 270152 transitions. Second operand has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 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) [2023-11-21 19:54:06,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:06,162 INFO L93 Difference]: Finished difference Result 93674 states and 270151 transitions. [2023-11-21 19:54:06,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:06,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2023-11-21 19:54:06,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:06,950 INFO L225 Difference]: With dead ends: 93674 [2023-11-21 19:54:06,951 INFO L226 Difference]: Without dead ends: 93674 [2023-11-21 19:54:06,951 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 [2023-11-21 19:54:06,954 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 2 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:06,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 627 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:54:07,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93674 states. [2023-11-21 19:54:09,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93674 to 93674. [2023-11-21 19:54:09,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93674 states, 93283 states have (on average 2.8960367912695775) internal successors, (270151), 93673 states have internal predecessors, (270151), 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) [2023-11-21 19:54:09,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93674 states to 93674 states and 270151 transitions. [2023-11-21 19:54:09,875 INFO L78 Accepts]: Start accepts. Automaton has 93674 states and 270151 transitions. Word has length 39 [2023-11-21 19:54:09,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:09,876 INFO L495 AbstractCegarLoop]: Abstraction has 93674 states and 270151 transitions. [2023-11-21 19:54:09,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 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) [2023-11-21 19:54:09,876 INFO L276 IsEmpty]: Start isEmpty. Operand 93674 states and 270151 transitions. [2023-11-21 19:54:09,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-21 19:54:09,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:09,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:09,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 19:54:09,879 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-11-21 19:54:09,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:09,880 INFO L85 PathProgramCache]: Analyzing trace with hash -616394469, now seen corresponding path program 1 times [2023-11-21 19:54:09,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:09,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123306596] [2023-11-21 19:54:09,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:09,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:09,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:09,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:09,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123306596] [2023-11-21 19:54:09,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123306596] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:09,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:09,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:54:09,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777448335] [2023-11-21 19:54:09,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:09,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:09,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:09,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:09,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:09,998 INFO L87 Difference]: Start difference. First operand 93674 states and 270151 transitions. Second operand has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-11-21 19:54:11,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:11,255 INFO L93 Difference]: Finished difference Result 93673 states and 270150 transitions. [2023-11-21 19:54:11,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:11,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2023-11-21 19:54:11,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:11,631 INFO L225 Difference]: With dead ends: 93673 [2023-11-21 19:54:11,632 INFO L226 Difference]: Without dead ends: 93673 [2023-11-21 19:54:11,632 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 [2023-11-21 19:54:11,634 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 2 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:11,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 631 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:54:11,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93673 states. [2023-11-21 19:54:14,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93673 to 93673. [2023-11-21 19:54:14,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93673 states, 93283 states have (on average 2.896026071202684) internal successors, (270150), 93672 states have internal predecessors, (270150), 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) [2023-11-21 19:54:15,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93673 states to 93673 states and 270150 transitions. [2023-11-21 19:54:15,139 INFO L78 Accepts]: Start accepts. Automaton has 93673 states and 270150 transitions. Word has length 47 [2023-11-21 19:54:15,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:15,140 INFO L495 AbstractCegarLoop]: Abstraction has 93673 states and 270150 transitions. [2023-11-21 19:54:15,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-11-21 19:54:15,140 INFO L276 IsEmpty]: Start isEmpty. Operand 93673 states and 270150 transitions. [2023-11-21 19:54:15,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-21 19:54:15,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:15,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:15,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 19:54:15,144 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-11-21 19:54:15,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:15,145 INFO L85 PathProgramCache]: Analyzing trace with hash 383610033, now seen corresponding path program 1 times [2023-11-21 19:54:15,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:15,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428851198] [2023-11-21 19:54:15,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:15,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:15,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:15,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:15,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428851198] [2023-11-21 19:54:15,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428851198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:15,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:15,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:54:15,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424874632] [2023-11-21 19:54:15,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:15,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:15,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:15,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:15,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:15,276 INFO L87 Difference]: Start difference. First operand 93673 states and 270150 transitions. Second operand has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 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) [2023-11-21 19:54:15,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:15,957 INFO L93 Difference]: Finished difference Result 93672 states and 270149 transitions. [2023-11-21 19:54:15,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:15,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2023-11-21 19:54:15,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:16,303 INFO L225 Difference]: With dead ends: 93672 [2023-11-21 19:54:16,303 INFO L226 Difference]: Without dead ends: 93672 [2023-11-21 19:54:16,304 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 [2023-11-21 19:54:16,305 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 2 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:16,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 620 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:54:17,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93672 states. [2023-11-21 19:54:19,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93672 to 93672. [2023-11-21 19:54:19,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93672 states, 93283 states have (on average 2.896015351135791) internal successors, (270149), 93671 states have internal predecessors, (270149), 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) [2023-11-21 19:54:19,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93672 states to 93672 states and 270149 transitions. [2023-11-21 19:54:19,820 INFO L78 Accepts]: Start accepts. Automaton has 93672 states and 270149 transitions. Word has length 55 [2023-11-21 19:54:19,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:19,820 INFO L495 AbstractCegarLoop]: Abstraction has 93672 states and 270149 transitions. [2023-11-21 19:54:19,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 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) [2023-11-21 19:54:19,820 INFO L276 IsEmpty]: Start isEmpty. Operand 93672 states and 270149 transitions. [2023-11-21 19:54:19,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-21 19:54:19,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:19,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:19,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 19:54:19,823 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-11-21 19:54:19,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:19,824 INFO L85 PathProgramCache]: Analyzing trace with hash -351778937, now seen corresponding path program 1 times [2023-11-21 19:54:19,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:19,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977831658] [2023-11-21 19:54:19,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:19,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:19,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:19,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:19,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977831658] [2023-11-21 19:54:19,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977831658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:19,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:19,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:54:19,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117713075] [2023-11-21 19:54:19,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:19,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:19,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:19,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:19,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:19,920 INFO L87 Difference]: Start difference. First operand 93672 states and 270149 transitions. Second operand has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-11-21 19:54:20,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:20,492 INFO L93 Difference]: Finished difference Result 93671 states and 270148 transitions. [2023-11-21 19:54:20,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:20,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2023-11-21 19:54:20,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:21,822 INFO L225 Difference]: With dead ends: 93671 [2023-11-21 19:54:21,823 INFO L226 Difference]: Without dead ends: 93671 [2023-11-21 19:54:21,823 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 [2023-11-21 19:54:21,828 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 2 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:21,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 621 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:54:22,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93671 states. [2023-11-21 19:54:24,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93671 to 93671. [2023-11-21 19:54:24,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93671 states, 93283 states have (on average 2.896004631068898) internal successors, (270148), 93670 states have internal predecessors, (270148), 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) [2023-11-21 19:54:24,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93671 states to 93671 states and 270148 transitions. [2023-11-21 19:54:24,532 INFO L78 Accepts]: Start accepts. Automaton has 93671 states and 270148 transitions. Word has length 63 [2023-11-21 19:54:24,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:24,533 INFO L495 AbstractCegarLoop]: Abstraction has 93671 states and 270148 transitions. [2023-11-21 19:54:24,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-11-21 19:54:24,534 INFO L276 IsEmpty]: Start isEmpty. Operand 93671 states and 270148 transitions. [2023-11-21 19:54:24,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-21 19:54:24,536 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:24,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:24,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 19:54:24,537 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-11-21 19:54:24,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:24,538 INFO L85 PathProgramCache]: Analyzing trace with hash 497001869, now seen corresponding path program 1 times [2023-11-21 19:54:24,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:24,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319464265] [2023-11-21 19:54:24,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:24,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:24,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:24,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:24,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319464265] [2023-11-21 19:54:24,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319464265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:24,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:24,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:54:24,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224504488] [2023-11-21 19:54:24,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:24,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:24,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:24,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:24,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:24,650 INFO L87 Difference]: Start difference. First operand 93671 states and 270148 transitions. Second operand has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 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) [2023-11-21 19:54:26,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:26,144 INFO L93 Difference]: Finished difference Result 93670 states and 270147 transitions. [2023-11-21 19:54:26,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:26,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2023-11-21 19:54:26,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:26,657 INFO L225 Difference]: With dead ends: 93670 [2023-11-21 19:54:26,657 INFO L226 Difference]: Without dead ends: 93670 [2023-11-21 19:54:26,658 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 [2023-11-21 19:54:26,659 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 2 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:26,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 626 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:54:26,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93670 states. [2023-11-21 19:54:28,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93670 to 93670. [2023-11-21 19:54:29,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93670 states, 93283 states have (on average 2.8959939110020048) internal successors, (270147), 93669 states have internal predecessors, (270147), 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) [2023-11-21 19:54:29,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93670 states to 93670 states and 270147 transitions. [2023-11-21 19:54:29,279 INFO L78 Accepts]: Start accepts. Automaton has 93670 states and 270147 transitions. Word has length 71 [2023-11-21 19:54:29,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:29,279 INFO L495 AbstractCegarLoop]: Abstraction has 93670 states and 270147 transitions. [2023-11-21 19:54:29,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 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) [2023-11-21 19:54:29,279 INFO L276 IsEmpty]: Start isEmpty. Operand 93670 states and 270147 transitions. [2023-11-21 19:54:29,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-21 19:54:29,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:29,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:29,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 19:54:29,282 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-11-21 19:54:29,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:29,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1407999484, now seen corresponding path program 1 times [2023-11-21 19:54:29,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:29,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492870241] [2023-11-21 19:54:29,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:29,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:29,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:29,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:29,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492870241] [2023-11-21 19:54:29,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492870241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:29,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:29,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:54:29,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771462047] [2023-11-21 19:54:29,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:29,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:29,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:29,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:29,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:29,417 INFO L87 Difference]: Start difference. First operand 93670 states and 270147 transitions. Second operand has 3 states, 2 states have (on average 37.5) internal successors, (75), 3 states have internal predecessors, (75), 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)