./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh --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 2775f713e378913186e8b7d26aeab9962af0cc62e93b6360bbda34aa29f8c3e8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:07:03,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:07:03,812 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-12-02 15:07:03,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:07:03,818 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:07:03,840 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:07:03,841 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:07:03,841 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:07:03,842 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:07:03,842 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:07:03,843 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:07:03,843 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:07:03,844 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:07:03,844 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:07:03,845 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:07:03,845 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:07:03,846 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:07:03,846 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:07:03,847 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:07:03,847 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:07:03,848 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:07:03,848 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:07:03,849 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:07:03,850 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:07:03,850 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:07:03,850 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:07:03,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:07:03,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:07:03,852 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:07:03,852 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:07:03,852 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:07:03,853 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 15:07:03,853 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 15:07:03,853 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:07:03,854 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:07:03,854 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:07:03,854 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:07:03,855 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:07:03,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:07:03,855 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:07:03,855 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:07:03,856 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:07:03,856 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:07:03,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:07:03,856 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:07:03,856 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:07:03,856 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:07:03,857 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:07:03,857 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_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2775f713e378913186e8b7d26aeab9962af0cc62e93b6360bbda34aa29f8c3e8 [2023-12-02 15:07:04,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:07:04,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:07:04,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:07:04,122 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:07:04,123 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:07:04,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer.i [2023-12-02 15:07:06,879 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:07:07,129 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:07:07,130 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer.i [2023-12-02 15:07:07,146 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/data/ddb2ae4fa/cb7d3e00ffcb428aad951d995b372551/FLAG2591e5bdc [2023-12-02 15:07:07,158 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/data/ddb2ae4fa/cb7d3e00ffcb428aad951d995b372551 [2023-12-02 15:07:07,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:07:07,162 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:07:07,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:07:07,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:07:07,168 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:07:07,169 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:07:07" (1/1) ... [2023-12-02 15:07:07,170 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@579ffc31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:07:07, skipping insertion in model container [2023-12-02 15:07:07,170 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:07:07" (1/1) ... [2023-12-02 15:07:07,213 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:07:07,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:07:07,511 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:07:07,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:07:07,581 WARN L675 CHandler]: The function pthread_detach is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:07:07,588 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:07:07,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:07:07 WrapperNode [2023-12-02 15:07:07,589 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:07:07,590 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:07:07,590 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:07:07,590 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:07:07,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:07:07" (1/1) ... [2023-12-02 15:07:07,610 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:07:07" (1/1) ... [2023-12-02 15:07:07,633 INFO L138 Inliner]: procedures = 160, calls = 42, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2023-12-02 15:07:07,634 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:07:07,635 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:07:07,635 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:07:07,635 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:07:07,643 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:07:07" (1/1) ... [2023-12-02 15:07:07,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:07:07" (1/1) ... [2023-12-02 15:07:07,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:07:07" (1/1) ... [2023-12-02 15:07:07,647 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:07:07" (1/1) ... [2023-12-02 15:07:07,654 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:07:07" (1/1) ... [2023-12-02 15:07:07,657 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:07:07" (1/1) ... [2023-12-02 15:07:07,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:07:07" (1/1) ... [2023-12-02 15:07:07,661 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:07:07" (1/1) ... [2023-12-02 15:07:07,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:07:07,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:07:07,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:07:07,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:07:07,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:07:07" (1/1) ... [2023-12-02 15:07:07,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:07:07,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:07:07,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:07:07,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:07:07,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:07:07,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:07:07,724 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 15:07:07,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:07:07,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:07:07,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:07:07,724 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_detach [2023-12-02 15:07:07,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:07:07,725 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-12-02 15:07:07,725 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-12-02 15:07:07,725 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 15:07:07,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:07:07,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:07:07,727 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 15:07:07,855 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:07:07,857 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:07:08,079 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:07:08,111 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:07:08,111 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 15:07:08,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:07:08 BoogieIcfgContainer [2023-12-02 15:07:08,113 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:07:08,116 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:07:08,116 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:07:08,119 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:07:08,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:07:07" (1/3) ... [2023-12-02 15:07:08,120 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e75d4aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:07:08, skipping insertion in model container [2023-12-02 15:07:08,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:07:07" (2/3) ... [2023-12-02 15:07:08,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e75d4aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:07:08, skipping insertion in model container [2023-12-02 15:07:08,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:07:08" (3/3) ... [2023-12-02 15:07:08,122 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-counter-outer.i [2023-12-02 15:07:08,131 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 15:07:08,141 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:07:08,142 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-12-02 15:07:08,142 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 15:07:08,195 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 15:07:08,236 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 139 places, 140 transitions, 284 flow [2023-12-02 15:07:08,323 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1998 states, 1967 states have (on average 1.9938993390950686) internal successors, (3922), 1997 states have internal predecessors, (3922), 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) [2023-12-02 15:07:08,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:07:08,343 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;@42f627c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:07:08,343 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-12-02 15:07:08,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 1998 states, 1967 states have (on average 1.9938993390950686) internal successors, (3922), 1997 states have internal predecessors, (3922), 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) [2023-12-02 15:07:08,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 15:07:08,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:08,355 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] [2023-12-02 15:07:08,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-12-02 15:07:08,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:08,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1778244919, now seen corresponding path program 1 times [2023-12-02 15:07:08,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:08,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361939042] [2023-12-02 15:07:08,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:08,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:08,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:08,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:08,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361939042] [2023-12-02 15:07:08,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361939042] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:08,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:07:08,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:07:08,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840733738] [2023-12-02 15:07:08,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:08,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:07:08,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:08,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:07:08,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:07:08,648 INFO L87 Difference]: Start difference. First operand has 1998 states, 1967 states have (on average 1.9938993390950686) internal successors, (3922), 1997 states have internal predecessors, (3922), 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 24.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-12-02 15:07:08,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:08,784 INFO L93 Difference]: Finished difference Result 2144 states and 4120 transitions. [2023-12-02 15:07:08,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:07:08,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2023-12-02 15:07:08,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:08,814 INFO L225 Difference]: With dead ends: 2144 [2023-12-02 15:07:08,814 INFO L226 Difference]: Without dead ends: 2143 [2023-12-02 15:07:08,815 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 [2023-12-02 15:07:08,819 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 84 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:08,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 286 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:07:08,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2023-12-02 15:07:08,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 1932. [2023-12-02 15:07:08,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1932 states, 1910 states have (on average 1.9486910994764397) internal successors, (3722), 1931 states have internal predecessors, (3722), 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) [2023-12-02 15:07:08,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 3722 transitions. [2023-12-02 15:07:08,972 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 3722 transitions. Word has length 48 [2023-12-02 15:07:08,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:08,972 INFO L495 AbstractCegarLoop]: Abstraction has 1932 states and 3722 transitions. [2023-12-02 15:07:08,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-12-02 15:07:08,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 3722 transitions. [2023-12-02 15:07:08,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 15:07:08,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:08,975 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] [2023-12-02 15:07:08,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:07:08,976 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-12-02 15:07:08,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:08,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1258247059, now seen corresponding path program 1 times [2023-12-02 15:07:08,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:08,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274062525] [2023-12-02 15:07:08,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:08,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:09,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:09,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:09,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274062525] [2023-12-02 15:07:09,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274062525] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:09,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:07:09,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:07:09,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854447312] [2023-12-02 15:07:09,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:09,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:07:09,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:09,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:07:09,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:07:09,074 INFO L87 Difference]: Start difference. First operand 1932 states and 3722 transitions. Second operand has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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) [2023-12-02 15:07:09,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:09,152 INFO L93 Difference]: Finished difference Result 1953 states and 3762 transitions. [2023-12-02 15:07:09,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:07:09,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2023-12-02 15:07:09,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:09,164 INFO L225 Difference]: With dead ends: 1953 [2023-12-02 15:07:09,164 INFO L226 Difference]: Without dead ends: 1953 [2023-12-02 15:07:09,164 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 [2023-12-02 15:07:09,166 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 31 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:09,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 252 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:07:09,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2023-12-02 15:07:09,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1925. [2023-12-02 15:07:09,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1925 states, 1906 states have (on average 1.9454354669464848) internal successors, (3708), 1924 states have internal predecessors, (3708), 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) [2023-12-02 15:07:09,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 3708 transitions. [2023-12-02 15:07:09,224 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 3708 transitions. Word has length 53 [2023-12-02 15:07:09,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:09,224 INFO L495 AbstractCegarLoop]: Abstraction has 1925 states and 3708 transitions. [2023-12-02 15:07:09,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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) [2023-12-02 15:07:09,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 3708 transitions. [2023-12-02 15:07:09,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 15:07:09,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:09,227 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] [2023-12-02 15:07:09,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:07:09,228 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-12-02 15:07:09,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:09,228 INFO L85 PathProgramCache]: Analyzing trace with hash -776479161, now seen corresponding path program 1 times [2023-12-02 15:07:09,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:09,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879754169] [2023-12-02 15:07:09,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:09,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:09,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:09,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:09,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879754169] [2023-12-02 15:07:09,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879754169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:09,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:07:09,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:07:09,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433438853] [2023-12-02 15:07:09,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:09,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:07:09,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:09,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:07:09,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:07:09,299 INFO L87 Difference]: Start difference. First operand 1925 states and 3708 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-12-02 15:07:09,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:09,350 INFO L93 Difference]: Finished difference Result 2019 states and 3868 transitions. [2023-12-02 15:07:09,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:07:09,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2023-12-02 15:07:09,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:09,362 INFO L225 Difference]: With dead ends: 2019 [2023-12-02 15:07:09,362 INFO L226 Difference]: Without dead ends: 1907 [2023-12-02 15:07:09,363 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 [2023-12-02 15:07:09,364 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 34 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:09,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 267 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:07:09,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2023-12-02 15:07:09,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1827. [2023-12-02 15:07:09,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1827 states, 1809 states have (on average 1.9369817578772803) internal successors, (3504), 1826 states have internal predecessors, (3504), 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) [2023-12-02 15:07:09,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 3504 transitions. [2023-12-02 15:07:09,407 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 3504 transitions. Word has length 54 [2023-12-02 15:07:09,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:09,407 INFO L495 AbstractCegarLoop]: Abstraction has 1827 states and 3504 transitions. [2023-12-02 15:07:09,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-12-02 15:07:09,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 3504 transitions. [2023-12-02 15:07:09,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 15:07:09,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:09,409 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] [2023-12-02 15:07:09,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 15:07:09,410 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-12-02 15:07:09,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:09,440 INFO L85 PathProgramCache]: Analyzing trace with hash -538905304, now seen corresponding path program 1 times [2023-12-02 15:07:09,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:09,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879121434] [2023-12-02 15:07:09,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:09,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:09,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:09,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:09,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879121434] [2023-12-02 15:07:09,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879121434] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:09,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:07:09,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:07:09,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554300288] [2023-12-02 15:07:09,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:09,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:07:09,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:09,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:07:09,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:07:09,956 INFO L87 Difference]: Start difference. First operand 1827 states and 3504 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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) [2023-12-02 15:07:10,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:10,048 INFO L93 Difference]: Finished difference Result 1796 states and 3443 transitions. [2023-12-02 15:07:10,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:07:10,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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 70 [2023-12-02 15:07:10,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:10,061 INFO L225 Difference]: With dead ends: 1796 [2023-12-02 15:07:10,061 INFO L226 Difference]: Without dead ends: 1796 [2023-12-02 15:07:10,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:07:10,062 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 156 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:10,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 405 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:07:10,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2023-12-02 15:07:10,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1796. [2023-12-02 15:07:10,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1796 states, 1781 states have (on average 1.9331836047164515) internal successors, (3443), 1795 states have internal predecessors, (3443), 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) [2023-12-02 15:07:10,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 3443 transitions. [2023-12-02 15:07:10,123 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 3443 transitions. Word has length 70 [2023-12-02 15:07:10,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:10,124 INFO L495 AbstractCegarLoop]: Abstraction has 1796 states and 3443 transitions. [2023-12-02 15:07:10,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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) [2023-12-02 15:07:10,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 3443 transitions. [2023-12-02 15:07:10,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 15:07:10,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:10,126 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] [2023-12-02 15:07:10,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 15:07:10,126 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-12-02 15:07:10,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:10,127 INFO L85 PathProgramCache]: Analyzing trace with hash 299978077, now seen corresponding path program 1 times [2023-12-02 15:07:10,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:10,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068170312] [2023-12-02 15:07:10,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:10,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:10,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:10,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:10,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068170312] [2023-12-02 15:07:10,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068170312] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:10,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:07:10,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:07:10,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941207716] [2023-12-02 15:07:10,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:10,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:07:10,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:10,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:07:10,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:07:10,183 INFO L87 Difference]: Start difference. First operand 1796 states and 3443 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) [2023-12-02 15:07:10,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:10,236 INFO L93 Difference]: Finished difference Result 1761 states and 3369 transitions. [2023-12-02 15:07:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:07:10,237 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 [2023-12-02 15:07:10,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:10,248 INFO L225 Difference]: With dead ends: 1761 [2023-12-02 15:07:10,249 INFO L226 Difference]: Without dead ends: 1761 [2023-12-02 15:07:10,249 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 [2023-12-02 15:07:10,250 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 58 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:10,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 287 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:07:10,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2023-12-02 15:07:10,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1749. [2023-12-02 15:07:10,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1736 states have (on average 1.9279953917050692) internal successors, (3347), 1748 states have internal predecessors, (3347), 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) [2023-12-02 15:07:10,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 3347 transitions. [2023-12-02 15:07:10,324 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 3347 transitions. Word has length 71 [2023-12-02 15:07:10,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:10,324 INFO L495 AbstractCegarLoop]: Abstraction has 1749 states and 3347 transitions. [2023-12-02 15:07:10,324 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) [2023-12-02 15:07:10,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 3347 transitions. [2023-12-02 15:07:10,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 15:07:10,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:10,327 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:07:10,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 15:07:10,327 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-12-02 15:07:10,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:10,328 INFO L85 PathProgramCache]: Analyzing trace with hash 537362920, now seen corresponding path program 1 times [2023-12-02 15:07:10,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:10,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792115543] [2023-12-02 15:07:10,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:10,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:10,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:10,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:10,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792115543] [2023-12-02 15:07:10,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792115543] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:10,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:07:10,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:07:10,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303809032] [2023-12-02 15:07:10,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:10,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:07:10,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:10,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:07:10,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:07:10,389 INFO L87 Difference]: Start difference. First operand 1749 states and 3347 transitions. Second operand has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2023-12-02 15:07:10,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:10,456 INFO L93 Difference]: Finished difference Result 1778 states and 3386 transitions. [2023-12-02 15:07:10,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:07:10,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2023-12-02 15:07:10,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:10,467 INFO L225 Difference]: With dead ends: 1778 [2023-12-02 15:07:10,467 INFO L226 Difference]: Without dead ends: 1616 [2023-12-02 15:07:10,467 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 [2023-12-02 15:07:10,468 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 59 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:10,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 276 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:07:10,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2023-12-02 15:07:10,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1584. [2023-12-02 15:07:10,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1575 states have (on average 1.8965079365079365) internal successors, (2987), 1583 states have internal predecessors, (2987), 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) [2023-12-02 15:07:10,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2987 transitions. [2023-12-02 15:07:10,520 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2987 transitions. Word has length 84 [2023-12-02 15:07:10,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:10,520 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 2987 transitions. [2023-12-02 15:07:10,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2023-12-02 15:07:10,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2987 transitions. [2023-12-02 15:07:10,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 15:07:10,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:10,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:07:10,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 15:07:10,524 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-12-02 15:07:10,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:10,524 INFO L85 PathProgramCache]: Analyzing trace with hash -696725520, now seen corresponding path program 1 times [2023-12-02 15:07:10,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:10,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762578827] [2023-12-02 15:07:10,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:10,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:10,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:10,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:10,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762578827] [2023-12-02 15:07:10,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762578827] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:07:10,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685980579] [2023-12-02 15:07:10,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:10,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:07:10,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:07:10,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:07:10,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:07:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:10,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:07:10,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:07:11,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:11,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:07:11,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685980579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:11,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 15:07:11,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-12-02 15:07:11,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910911551] [2023-12-02 15:07:11,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:11,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:07:11,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:11,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:07:11,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 15:07:11,048 INFO L87 Difference]: Start difference. First operand 1584 states and 2987 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2023-12-02 15:07:11,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:11,151 INFO L93 Difference]: Finished difference Result 1731 states and 3280 transitions. [2023-12-02 15:07:11,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 15:07:11,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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 98 [2023-12-02 15:07:11,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:11,163 INFO L225 Difference]: With dead ends: 1731 [2023-12-02 15:07:11,164 INFO L226 Difference]: Without dead ends: 1731 [2023-12-02 15:07:11,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-02 15:07:11,165 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 95 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:11,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 457 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:07:11,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2023-12-02 15:07:11,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1495. [2023-12-02 15:07:11,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1488 states have (on average 1.9099462365591398) internal successors, (2842), 1494 states have internal predecessors, (2842), 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) [2023-12-02 15:07:11,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 2842 transitions. [2023-12-02 15:07:11,223 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 2842 transitions. Word has length 98 [2023-12-02 15:07:11,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:11,224 INFO L495 AbstractCegarLoop]: Abstraction has 1495 states and 2842 transitions. [2023-12-02 15:07:11,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2023-12-02 15:07:11,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 2842 transitions. [2023-12-02 15:07:11,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 15:07:11,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:11,228 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-02 15:07:11,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:07:11,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 15:07:11,429 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-12-02 15:07:11,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:11,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2136836131, now seen corresponding path program 1 times [2023-12-02 15:07:11,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:11,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085903849] [2023-12-02 15:07:11,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:11,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:07:11,466 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:07:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:07:11,514 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:07:11,514 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:07:11,515 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2023-12-02 15:07:11,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-12-02 15:07:11,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-12-02 15:07:11,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-12-02 15:07:11,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-12-02 15:07:11,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-12-02 15:07:11,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-12-02 15:07:11,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-12-02 15:07:11,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-12-02 15:07:11,519 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-12-02 15:07:11,519 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-12-02 15:07:11,519 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-12-02 15:07:11,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 15:07:11,522 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:07:11,524 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-02 15:07:11,524 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-12-02 15:07:11,550 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 15:07:11,554 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 173 places, 172 transitions, 354 flow [2023-12-02 15:07:13,164 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 64185 states, 64047 states have (on average 2.94614892188549) internal successors, (188692), 64184 states have internal predecessors, (188692), 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) [2023-12-02 15:07:13,165 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:07:13,165 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;@42f627c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:07:13,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-12-02 15:07:13,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 64185 states, 64047 states have (on average 2.94614892188549) internal successors, (188692), 64184 states have internal predecessors, (188692), 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) [2023-12-02 15:07:13,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 15:07:13,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:13,382 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] [2023-12-02 15:07:13,382 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-12-02 15:07:13,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:13,383 INFO L85 PathProgramCache]: Analyzing trace with hash -391076151, now seen corresponding path program 1 times [2023-12-02 15:07:13,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:13,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891389906] [2023-12-02 15:07:13,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:13,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:13,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:13,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:13,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891389906] [2023-12-02 15:07:13,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891389906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:13,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:07:13,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:07:13,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301126988] [2023-12-02 15:07:13,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:13,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:07:13,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:13,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:07:13,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:07:13,511 INFO L87 Difference]: Start difference. First operand has 64185 states, 64047 states have (on average 2.94614892188549) internal successors, (188692), 64184 states have internal predecessors, (188692), 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 24.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-12-02 15:07:15,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:15,234 INFO L93 Difference]: Finished difference Result 81318 states and 234567 transitions. [2023-12-02 15:07:15,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:07:15,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2023-12-02 15:07:15,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:15,575 INFO L225 Difference]: With dead ends: 81318 [2023-12-02 15:07:15,575 INFO L226 Difference]: Without dead ends: 81317 [2023-12-02 15:07:15,575 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 [2023-12-02 15:07:15,576 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 113 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:15,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 352 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:07:15,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81317 states. [2023-12-02 15:07:17,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81317 to 65013. [2023-12-02 15:07:17,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65013 states, 64898 states have (on average 2.8990569817251686) internal successors, (188143), 65012 states have internal predecessors, (188143), 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) [2023-12-02 15:07:17,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65013 states to 65013 states and 188143 transitions. [2023-12-02 15:07:17,962 INFO L78 Accepts]: Start accepts. Automaton has 65013 states and 188143 transitions. Word has length 48 [2023-12-02 15:07:17,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:17,962 INFO L495 AbstractCegarLoop]: Abstraction has 65013 states and 188143 transitions. [2023-12-02 15:07:17,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-12-02 15:07:17,962 INFO L276 IsEmpty]: Start isEmpty. Operand 65013 states and 188143 transitions. [2023-12-02 15:07:17,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 15:07:17,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:17,963 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] [2023-12-02 15:07:17,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 15:07:17,963 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-12-02 15:07:17,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:17,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1098128065, now seen corresponding path program 1 times [2023-12-02 15:07:17,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:17,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301596931] [2023-12-02 15:07:17,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:17,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:17,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:17,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301596931] [2023-12-02 15:07:17,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301596931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:17,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:07:17,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:07:17,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336516275] [2023-12-02 15:07:17,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:17,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:07:17,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:17,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:07:17,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:07:17,990 INFO L87 Difference]: Start difference. First operand 65013 states and 188143 transitions. Second operand has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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) [2023-12-02 15:07:18,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:18,558 INFO L93 Difference]: Finished difference Result 66764 states and 193141 transitions. [2023-12-02 15:07:18,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:07:18,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2023-12-02 15:07:18,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:18,900 INFO L225 Difference]: With dead ends: 66764 [2023-12-02 15:07:18,900 INFO L226 Difference]: Without dead ends: 66764 [2023-12-02 15:07:18,900 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 [2023-12-02 15:07:18,901 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 60 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:18,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 323 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:07:19,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66764 states. [2023-12-02 15:07:20,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66764 to 65300. [2023-12-02 15:07:20,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65300 states, 65192 states have (on average 2.8980703153761196) internal successors, (188931), 65299 states have internal predecessors, (188931), 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) [2023-12-02 15:07:20,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65300 states to 65300 states and 188931 transitions. [2023-12-02 15:07:20,566 INFO L78 Accepts]: Start accepts. Automaton has 65300 states and 188931 transitions. Word has length 53 [2023-12-02 15:07:20,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:20,566 INFO L495 AbstractCegarLoop]: Abstraction has 65300 states and 188931 transitions. [2023-12-02 15:07:20,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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) [2023-12-02 15:07:20,566 INFO L276 IsEmpty]: Start isEmpty. Operand 65300 states and 188931 transitions. [2023-12-02 15:07:20,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 15:07:20,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:20,567 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] [2023-12-02 15:07:20,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 15:07:20,567 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-12-02 15:07:20,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:20,568 INFO L85 PathProgramCache]: Analyzing trace with hash -809663801, now seen corresponding path program 1 times [2023-12-02 15:07:20,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:20,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301097944] [2023-12-02 15:07:20,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:20,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:20,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:20,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:20,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301097944] [2023-12-02 15:07:20,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301097944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:20,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:07:20,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:07:20,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25154006] [2023-12-02 15:07:20,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:20,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:07:20,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:20,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:07:20,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:07:20,608 INFO L87 Difference]: Start difference. First operand 65300 states and 188931 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-12-02 15:07:21,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:21,226 INFO L93 Difference]: Finished difference Result 70759 states and 203767 transitions. [2023-12-02 15:07:21,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:07:21,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2023-12-02 15:07:21,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:21,405 INFO L225 Difference]: With dead ends: 70759 [2023-12-02 15:07:21,405 INFO L226 Difference]: Without dead ends: 69961 [2023-12-02 15:07:21,405 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 [2023-12-02 15:07:21,406 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 65 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:21,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 344 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:07:21,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69961 states. [2023-12-02 15:07:22,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69961 to 65391. [2023-12-02 15:07:22,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65391 states, 65284 states have (on average 2.896192022547638) internal successors, (189075), 65390 states have internal predecessors, (189075), 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) [2023-12-02 15:07:22,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65391 states to 65391 states and 189075 transitions. [2023-12-02 15:07:22,807 INFO L78 Accepts]: Start accepts. Automaton has 65391 states and 189075 transitions. Word has length 54 [2023-12-02 15:07:22,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:22,807 INFO L495 AbstractCegarLoop]: Abstraction has 65391 states and 189075 transitions. [2023-12-02 15:07:22,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-12-02 15:07:22,808 INFO L276 IsEmpty]: Start isEmpty. Operand 65391 states and 189075 transitions. [2023-12-02 15:07:22,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 15:07:22,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:22,808 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] [2023-12-02 15:07:22,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 15:07:22,809 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-12-02 15:07:22,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:22,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1217841465, now seen corresponding path program 1 times [2023-12-02 15:07:22,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:22,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093631001] [2023-12-02 15:07:22,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:22,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:23,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:23,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:23,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093631001] [2023-12-02 15:07:23,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093631001] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:23,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:07:23,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:07:23,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401130537] [2023-12-02 15:07:23,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:23,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:07:23,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:23,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:07:23,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:07:23,426 INFO L87 Difference]: Start difference. First operand 65391 states and 189075 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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) [2023-12-02 15:07:23,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:23,899 INFO L93 Difference]: Finished difference Result 64324 states and 185977 transitions. [2023-12-02 15:07:23,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:07:23,900 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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 70 [2023-12-02 15:07:23,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:24,076 INFO L225 Difference]: With dead ends: 64324 [2023-12-02 15:07:24,077 INFO L226 Difference]: Without dead ends: 64324 [2023-12-02 15:07:24,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:07:24,078 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 284 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:24,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 655 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:07:24,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64324 states. [2023-12-02 15:07:25,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64324 to 64324. [2023-12-02 15:07:25,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64324 states, 64234 states have (on average 2.8953046673101475) internal successors, (185977), 64323 states have internal predecessors, (185977), 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) [2023-12-02 15:07:25,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64324 states to 64324 states and 185977 transitions. [2023-12-02 15:07:25,570 INFO L78 Accepts]: Start accepts. Automaton has 64324 states and 185977 transitions. Word has length 70 [2023-12-02 15:07:25,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:25,570 INFO L495 AbstractCegarLoop]: Abstraction has 64324 states and 185977 transitions. [2023-12-02 15:07:25,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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) [2023-12-02 15:07:25,571 INFO L276 IsEmpty]: Start isEmpty. Operand 64324 states and 185977 transitions. [2023-12-02 15:07:25,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 15:07:25,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:25,571 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] [2023-12-02 15:07:25,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 15:07:25,572 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-12-02 15:07:25,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:25,572 INFO L85 PathProgramCache]: Analyzing trace with hash 727793738, now seen corresponding path program 1 times [2023-12-02 15:07:25,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:25,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049057547] [2023-12-02 15:07:25,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:25,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:25,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:25,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:25,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049057547] [2023-12-02 15:07:25,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049057547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:25,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:07:25,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:07:25,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804887398] [2023-12-02 15:07:25,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:25,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:07:25,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:25,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:07:25,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:07:25,614 INFO L87 Difference]: Start difference. First operand 64324 states and 185977 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) [2023-12-02 15:07:25,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:25,963 INFO L93 Difference]: Finished difference Result 68244 states and 197537 transitions. [2023-12-02 15:07:25,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:07:25,963 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 [2023-12-02 15:07:25,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:26,147 INFO L225 Difference]: With dead ends: 68244 [2023-12-02 15:07:26,147 INFO L226 Difference]: Without dead ends: 68244 [2023-12-02 15:07:26,147 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 [2023-12-02 15:07:26,148 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 92 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:26,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 366 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:07:26,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68244 states. [2023-12-02 15:07:27,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68244 to 65298. [2023-12-02 15:07:27,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65298 states, 65209 states have (on average 2.896241316382708) internal successors, (188861), 65297 states have internal predecessors, (188861), 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) [2023-12-02 15:07:27,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65298 states to 65298 states and 188861 transitions. [2023-12-02 15:07:27,865 INFO L78 Accepts]: Start accepts. Automaton has 65298 states and 188861 transitions. Word has length 71 [2023-12-02 15:07:27,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:27,866 INFO L495 AbstractCegarLoop]: Abstraction has 65298 states and 188861 transitions. [2023-12-02 15:07:27,866 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) [2023-12-02 15:07:27,866 INFO L276 IsEmpty]: Start isEmpty. Operand 65298 states and 188861 transitions. [2023-12-02 15:07:27,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 15:07:27,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:27,867 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:07:27,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 15:07:27,867 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-12-02 15:07:27,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:27,868 INFO L85 PathProgramCache]: Analyzing trace with hash 695646151, now seen corresponding path program 1 times [2023-12-02 15:07:27,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:27,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722952774] [2023-12-02 15:07:27,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:27,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:27,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:27,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:27,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722952774] [2023-12-02 15:07:27,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722952774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:27,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:07:27,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:07:27,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7945403] [2023-12-02 15:07:27,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:27,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:07:27,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:27,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:07:27,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:07:27,924 INFO L87 Difference]: Start difference. First operand 65298 states and 188861 transitions. Second operand has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2023-12-02 15:07:28,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:28,396 INFO L93 Difference]: Finished difference Result 70415 states and 203689 transitions. [2023-12-02 15:07:28,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:07:28,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2023-12-02 15:07:28,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:28,836 INFO L225 Difference]: With dead ends: 70415 [2023-12-02 15:07:28,836 INFO L226 Difference]: Without dead ends: 69119 [2023-12-02 15:07:28,837 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 [2023-12-02 15:07:28,838 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 89 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:28,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 346 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:07:28,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69119 states. [2023-12-02 15:07:29,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69119 to 65559. [2023-12-02 15:07:30,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65559 states, 65481 states have (on average 2.890991279913257) internal successors, (189305), 65558 states have internal predecessors, (189305), 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) [2023-12-02 15:07:30,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65559 states to 65559 states and 189305 transitions. [2023-12-02 15:07:30,197 INFO L78 Accepts]: Start accepts. Automaton has 65559 states and 189305 transitions. Word has length 84 [2023-12-02 15:07:30,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:30,198 INFO L495 AbstractCegarLoop]: Abstraction has 65559 states and 189305 transitions. [2023-12-02 15:07:30,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2023-12-02 15:07:30,198 INFO L276 IsEmpty]: Start isEmpty. Operand 65559 states and 189305 transitions. [2023-12-02 15:07:30,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 15:07:30,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:30,200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:07:30,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 15:07:30,200 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-12-02 15:07:30,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:30,201 INFO L85 PathProgramCache]: Analyzing trace with hash -240099919, now seen corresponding path program 1 times [2023-12-02 15:07:30,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:30,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412875653] [2023-12-02 15:07:30,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:30,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:30,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:30,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:30,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412875653] [2023-12-02 15:07:30,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412875653] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:07:30,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130746276] [2023-12-02 15:07:30,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:30,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:07:30,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:07:30,333 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:07:30,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 15:07:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:30,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:07:30,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:07:30,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:30,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:07:30,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130746276] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:30,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 15:07:30,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-12-02 15:07:30,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416703152] [2023-12-02 15:07:30,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:30,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:07:30,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:30,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:07:30,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 15:07:30,587 INFO L87 Difference]: Start difference. First operand 65559 states and 189305 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2023-12-02 15:07:31,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:31,330 INFO L93 Difference]: Finished difference Result 84138 states and 242177 transitions. [2023-12-02 15:07:31,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 15:07:31,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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 98 [2023-12-02 15:07:31,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:31,536 INFO L225 Difference]: With dead ends: 84138 [2023-12-02 15:07:31,536 INFO L226 Difference]: Without dead ends: 84138 [2023-12-02 15:07:31,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-02 15:07:31,537 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 334 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:31,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 664 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:07:31,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84138 states. [2023-12-02 15:07:32,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84138 to 67949. [2023-12-02 15:07:33,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67949 states, 67879 states have (on average 2.8950927385494776) internal successors, (196516), 67948 states have internal predecessors, (196516), 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) [2023-12-02 15:07:33,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67949 states to 67949 states and 196516 transitions. [2023-12-02 15:07:33,238 INFO L78 Accepts]: Start accepts. Automaton has 67949 states and 196516 transitions. Word has length 98 [2023-12-02 15:07:33,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:33,238 INFO L495 AbstractCegarLoop]: Abstraction has 67949 states and 196516 transitions. [2023-12-02 15:07:33,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2023-12-02 15:07:33,239 INFO L276 IsEmpty]: Start isEmpty. Operand 67949 states and 196516 transitions. [2023-12-02 15:07:33,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 15:07:33,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:33,242 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:07:33,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 15:07:33,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-02 15:07:33,443 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-12-02 15:07:33,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:33,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1654357481, now seen corresponding path program 1 times [2023-12-02 15:07:33,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:33,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069237321] [2023-12-02 15:07:33,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:33,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:33,554 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 15:07:33,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:33,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069237321] [2023-12-02 15:07:33,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069237321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:33,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:07:33,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:07:33,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683728391] [2023-12-02 15:07:33,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:33,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:07:33,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:33,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:07:33,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:07:33,556 INFO L87 Difference]: Start difference. First operand 67949 states and 196516 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2023-12-02 15:07:34,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:34,285 INFO L93 Difference]: Finished difference Result 88667 states and 251230 transitions. [2023-12-02 15:07:34,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:07:34,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 105 [2023-12-02 15:07:34,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:34,488 INFO L225 Difference]: With dead ends: 88667 [2023-12-02 15:07:34,488 INFO L226 Difference]: Without dead ends: 88429 [2023-12-02 15:07:34,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:07:34,489 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 101 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:34,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 360 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:07:34,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88429 states. [2023-12-02 15:07:35,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88429 to 77178. [2023-12-02 15:07:35,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77178 states, 77089 states have (on average 2.8534810413937137) internal successors, (219972), 77177 states have internal predecessors, (219972), 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) [2023-12-02 15:07:36,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77178 states to 77178 states and 219972 transitions. [2023-12-02 15:07:36,128 INFO L78 Accepts]: Start accepts. Automaton has 77178 states and 219972 transitions. Word has length 105 [2023-12-02 15:07:36,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:36,128 INFO L495 AbstractCegarLoop]: Abstraction has 77178 states and 219972 transitions. [2023-12-02 15:07:36,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2023-12-02 15:07:36,128 INFO L276 IsEmpty]: Start isEmpty. Operand 77178 states and 219972 transitions. [2023-12-02 15:07:36,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 15:07:36,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:36,132 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:07:36,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-02 15:07:36,132 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-12-02 15:07:36,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:36,133 INFO L85 PathProgramCache]: Analyzing trace with hash 495154395, now seen corresponding path program 2 times [2023-12-02 15:07:36,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:36,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934126253] [2023-12-02 15:07:36,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:36,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:36,272 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 15:07:36,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:36,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934126253] [2023-12-02 15:07:36,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934126253] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:07:36,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919939508] [2023-12-02 15:07:36,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 15:07:36,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:07:36,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:07:36,274 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:07:36,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 15:07:36,374 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 15:07:36,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:07:36,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 15:07:36,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:07:36,683 INFO L378 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 [2023-12-02 15:07:37,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 15:07:37,033 INFO L378 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 16 treesize of output 11 [2023-12-02 15:07:37,069 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 15:07:37,069 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:07:37,152 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 15:07:37,152 INFO L378 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2023-12-02 15:07:37,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-12-02 15:07:37,285 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 15:07:37,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919939508] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:07:37,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1263941634] [2023-12-02 15:07:37,293 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:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) 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:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) 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) [2023-12-02 15:07:37,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:07:37,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-12-02 15:07:37,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197986964] [2023-12-02 15:07:37,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 15:07:37,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 15:07:37,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:37,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 15:07:37,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=106, Unknown=1, NotChecked=0, Total=156 [2023-12-02 15:07:37,298 INFO L87 Difference]: Start difference. First operand 77178 states and 219972 transitions. Second operand has 13 states, 13 states have (on average 17.923076923076923) internal successors, (233), 13 states have internal predecessors, (233), 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) [2023-12-02 15:07:37,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:37,516 INFO L93 Difference]: Finished difference Result 34878 states and 96182 transitions. [2023-12-02 15:07:37,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 15:07:37,516 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 17.923076923076923) internal successors, (233), 13 states have internal predecessors, (233), 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 105 [2023-12-02 15:07:37,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:37,582 INFO L225 Difference]: With dead ends: 34878 [2023-12-02 15:07:37,582 INFO L226 Difference]: Without dead ends: 34523 [2023-12-02 15:07:37,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=139, Unknown=1, NotChecked=0, Total=210 [2023-12-02 15:07:37,582 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 413 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:37,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 512 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:07:37,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34523 states. [2023-12-02 15:07:38,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34523 to 31901. [2023-12-02 15:07:38,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31901 states, 31879 states have (on average 2.7899557702562814) internal successors, (88941), 31900 states have internal predecessors, (88941), 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) [2023-12-02 15:07:38,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31901 states to 31901 states and 88941 transitions. [2023-12-02 15:07:38,146 INFO L78 Accepts]: Start accepts. Automaton has 31901 states and 88941 transitions. Word has length 105 [2023-12-02 15:07:38,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:38,146 INFO L495 AbstractCegarLoop]: Abstraction has 31901 states and 88941 transitions. [2023-12-02 15:07:38,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.923076923076923) internal successors, (233), 13 states have internal predecessors, (233), 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) [2023-12-02 15:07:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand 31901 states and 88941 transitions. [2023-12-02 15:07:38,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-02 15:07:38,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:38,149 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-02 15:07:38,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 15:07:38,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-02 15:07:38,349 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-12-02 15:07:38,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:38,350 INFO L85 PathProgramCache]: Analyzing trace with hash 249222946, now seen corresponding path program 1 times [2023-12-02 15:07:38,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:38,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994517638] [2023-12-02 15:07:38,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:38,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:38,398 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-02 15:07:38,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:38,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994517638] [2023-12-02 15:07:38,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994517638] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:38,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:07:38,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:07:38,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659462073] [2023-12-02 15:07:38,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:38,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:07:38,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:38,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:07:38,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:07:38,400 INFO L87 Difference]: Start difference. First operand 31901 states and 88941 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 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) [2023-12-02 15:07:38,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:38,766 INFO L93 Difference]: Finished difference Result 33847 states and 94461 transitions. [2023-12-02 15:07:38,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:07:38,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 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 107 [2023-12-02 15:07:38,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:38,835 INFO L225 Difference]: With dead ends: 33847 [2023-12-02 15:07:38,835 INFO L226 Difference]: Without dead ends: 33847 [2023-12-02 15:07:38,836 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 [2023-12-02 15:07:38,836 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 86 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:38,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 348 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:07:38,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33847 states. [2023-12-02 15:07:39,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33847 to 32197. [2023-12-02 15:07:39,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32197 states, 32177 states have (on average 2.7884824564129658) internal successors, (89725), 32196 states have internal predecessors, (89725), 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) [2023-12-02 15:07:39,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32197 states to 32197 states and 89725 transitions. [2023-12-02 15:07:39,561 INFO L78 Accepts]: Start accepts. Automaton has 32197 states and 89725 transitions. Word has length 107 [2023-12-02 15:07:39,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:39,561 INFO L495 AbstractCegarLoop]: Abstraction has 32197 states and 89725 transitions. [2023-12-02 15:07:39,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 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) [2023-12-02 15:07:39,562 INFO L276 IsEmpty]: Start isEmpty. Operand 32197 states and 89725 transitions. [2023-12-02 15:07:39,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-02 15:07:39,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:39,568 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2023-12-02 15:07:39,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 15:07:39,568 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-12-02 15:07:39,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:39,569 INFO L85 PathProgramCache]: Analyzing trace with hash -897585025, now seen corresponding path program 1 times [2023-12-02 15:07:39,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:39,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296391038] [2023-12-02 15:07:39,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:39,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:39,863 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:39,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:39,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296391038] [2023-12-02 15:07:39,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296391038] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:07:39,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254584265] [2023-12-02 15:07:39,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:39,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:07:39,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:07:39,865 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:07:39,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 15:07:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:40,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 15:07:40,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:07:40,187 INFO L378 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 [2023-12-02 15:07:40,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 15:07:40,362 INFO L378 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 16 treesize of output 11 [2023-12-02 15:07:40,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 15:07:40,439 INFO L378 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 16 treesize of output 11 [2023-12-02 15:07:40,482 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:40,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:07:40,519 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_380 (Array Int Int))) (not (= (select (select (store |c_#pthreadsMutex| |c_~#threads_alive_mutex~0.base| v_ArrVal_380) |c_~#data_mutex~0.base|) |c_~#data_mutex~0.offset|) 0))) is different from false [2023-12-02 15:07:40,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 15:07:40,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2023-12-02 15:07:40,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-12-02 15:07:40,717 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 13 not checked. [2023-12-02 15:07:40,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254584265] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:07:40,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1792481744] [2023-12-02 15:07:40,719 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$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:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) 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:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) 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) [2023-12-02 15:07:40,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:07:40,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-12-02 15:07:40,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118389685] [2023-12-02 15:07:40,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 15:07:40,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 15:07:40,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:40,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 15:07:40,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=92, Unknown=1, NotChecked=20, Total=156 [2023-12-02 15:07:40,722 INFO L87 Difference]: Start difference. First operand 32197 states and 89725 transitions. Second operand has 13 states, 13 states have (on average 21.923076923076923) internal successors, (285), 13 states have internal predecessors, (285), 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) [2023-12-02 15:07:41,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:41,084 INFO L93 Difference]: Finished difference Result 24282 states and 65495 transitions. [2023-12-02 15:07:41,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 15:07:41,085 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 21.923076923076923) internal successors, (285), 13 states have internal predecessors, (285), 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 115 [2023-12-02 15:07:41,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:41,132 INFO L225 Difference]: With dead ends: 24282 [2023-12-02 15:07:41,132 INFO L226 Difference]: Without dead ends: 24282 [2023-12-02 15:07:41,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 224 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=122, Unknown=1, NotChecked=24, Total=210 [2023-12-02 15:07:41,133 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 598 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 214 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:41,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 701 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 144 Invalid, 0 Unknown, 214 Unchecked, 0.2s Time] [2023-12-02 15:07:41,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24282 states. [2023-12-02 15:07:41,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24282 to 24282. [2023-12-02 15:07:41,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24282 states, 24268 states have (on average 2.6988214933245427) internal successors, (65495), 24281 states have internal predecessors, (65495), 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) [2023-12-02 15:07:41,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24282 states to 24282 states and 65495 transitions. [2023-12-02 15:07:41,550 INFO L78 Accepts]: Start accepts. Automaton has 24282 states and 65495 transitions. Word has length 115 [2023-12-02 15:07:41,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:41,550 INFO L495 AbstractCegarLoop]: Abstraction has 24282 states and 65495 transitions. [2023-12-02 15:07:41,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 21.923076923076923) internal successors, (285), 13 states have internal predecessors, (285), 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) [2023-12-02 15:07:41,551 INFO L276 IsEmpty]: Start isEmpty. Operand 24282 states and 65495 transitions. [2023-12-02 15:07:41,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 15:07:41,557 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:41,557 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:07:41,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 15:07:41,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5697a58-6d01-411b-bb00-b511f03d3cb1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:07:41,760 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-12-02 15:07:41,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:41,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1913464626, now seen corresponding path program 1 times [2023-12-02 15:07:41,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:41,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242123947] [2023-12-02 15:07:41,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:41,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:41,811 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-02 15:07:41,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:41,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242123947] [2023-12-02 15:07:41,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242123947] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:41,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:07:41,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:07:41,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938108355] [2023-12-02 15:07:41,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:41,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:07:41,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:41,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:07:41,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:07:41,814 INFO L87 Difference]: Start difference. First operand 24282 states and 65495 transitions. Second operand has 3 states, 2 states have (on average 51.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2023-12-02 15:07:41,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:07:41,951 INFO L93 Difference]: Finished difference Result 23720 states and 63935 transitions. [2023-12-02 15:07:41,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:07:41,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 51.0) internal successors, (102), 3 states have internal predecessors, (102), 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 120 [2023-12-02 15:07:41,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:07:41,995 INFO L225 Difference]: With dead ends: 23720 [2023-12-02 15:07:41,996 INFO L226 Difference]: Without dead ends: 22363 [2023-12-02 15:07:41,996 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 [2023-12-02 15:07:41,997 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 52 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:07:41,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 318 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:07:42,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22363 states. [2023-12-02 15:07:42,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22363 to 22363. [2023-12-02 15:07:42,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22363 states, 22359 states have (on average 2.69278590276846) internal successors, (60208), 22362 states have internal predecessors, (60208), 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) [2023-12-02 15:07:42,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22363 states to 22363 states and 60208 transitions. [2023-12-02 15:07:42,543 INFO L78 Accepts]: Start accepts. Automaton has 22363 states and 60208 transitions. Word has length 120 [2023-12-02 15:07:42,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:42,544 INFO L495 AbstractCegarLoop]: Abstraction has 22363 states and 60208 transitions. [2023-12-02 15:07:42,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 51.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2023-12-02 15:07:42,544 INFO L276 IsEmpty]: Start isEmpty. Operand 22363 states and 60208 transitions. [2023-12-02 15:07:42,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-02 15:07:42,557 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:42,557 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-02 15:07:42,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-02 15:07:42,558 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-12-02 15:07:42,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:42,558 INFO L85 PathProgramCache]: Analyzing trace with hash -81969016, now seen corresponding path program 1 times [2023-12-02 15:07:42,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:42,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187980522] [2023-12-02 15:07:42,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:42,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:07:42,595 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:07:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:07:42,634 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:07:42,635 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:07:42,635 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2023-12-02 15:07:42,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-12-02 15:07:42,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-12-02 15:07:42,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-12-02 15:07:42,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-12-02 15:07:42,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-12-02 15:07:42,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2023-12-02 15:07:42,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-12-02 15:07:42,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-12-02 15:07:42,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-12-02 15:07:42,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-12-02 15:07:42,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-12-02 15:07:42,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-12-02 15:07:42,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-12-02 15:07:42,637 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-12-02 15:07:42,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-02 15:07:42,637 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:07:42,637 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-02 15:07:42,638 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-12-02 15:07:42,661 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 15:07:42,664 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 207 places, 204 transitions, 426 flow [2023-12-02 15:08:31,267 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2060294 states, 2059725 states have (on average 3.9099316656349754) internal successors, (8053384), 2060293 states have internal predecessors, (8053384), 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) [2023-12-02 15:08:31,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:08:31,271 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;@42f627c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:08:31,272 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-12-02 15:08:39,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 2060294 states, 2059725 states have (on average 3.9099316656349754) internal successors, (8053384), 2060293 states have internal predecessors, (8053384), 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) [2023-12-02 15:08:39,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 15:08:39,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:08:39,016 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] [2023-12-02 15:08:39,016 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 15:08:39,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:08:39,017 INFO L85 PathProgramCache]: Analyzing trace with hash -443839799, now seen corresponding path program 1 times [2023-12-02 15:08:39,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:08:39,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466936227] [2023-12-02 15:08:39,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:08:39,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:08:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:08:39,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:08:39,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:08:39,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466936227] [2023-12-02 15:08:39,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466936227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:08:39,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:08:39,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:08:39,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047614872] [2023-12-02 15:08:39,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:08:39,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:08:39,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:08:39,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:08:39,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:08:42,277 INFO L87 Difference]: Start difference. First operand has 2060294 states, 2059725 states have (on average 3.9099316656349754) internal successors, (8053384), 2060293 states have internal predecessors, (8053384), 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 24.0) internal successors, (48), 3 states have internal predecessors, (48), 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)