./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-array-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee1bcc63-a64d-41e0-8e23-9b94c0425402/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee1bcc63-a64d-41e0-8e23-9b94c0425402/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_ee1bcc63-a64d-41e0-8e23-9b94c0425402/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee1bcc63-a64d-41e0-8e23-9b94c0425402/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-array-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee1bcc63-a64d-41e0-8e23-9b94c0425402/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_ee1bcc63-a64d-41e0-8e23-9b94c0425402/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 e22e1beeef18edf77effe210ae0122c1338eccee79cdab905e0b74599361bc08 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:11:38,575 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:11:38,639 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee1bcc63-a64d-41e0-8e23-9b94c0425402/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-12-02 14:11:38,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:11:38,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:11:38,668 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:11:38,668 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:11:38,669 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:11:38,670 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:11:38,670 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:11:38,671 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:11:38,671 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:11:38,672 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:11:38,672 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:11:38,672 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:11:38,673 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:11:38,673 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:11:38,674 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:11:38,674 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:11:38,675 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:11:38,676 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:11:38,676 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:11:38,677 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:11:38,678 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:11:38,678 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:11:38,678 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:11:38,679 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:11:38,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:11:38,680 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:11:38,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:11:38,680 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:11:38,681 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 14:11:38,681 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 14:11:38,681 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:11:38,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:11:38,682 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:11:38,682 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:11:38,682 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:11:38,682 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:11:38,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:11:38,683 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:11:38,683 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:11:38,683 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:11:38,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:11:38,684 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:11:38,684 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:11:38,684 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:11:38,684 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:11:38,684 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_ee1bcc63-a64d-41e0-8e23-9b94c0425402/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee1bcc63-a64d-41e0-8e23-9b94c0425402/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e22e1beeef18edf77effe210ae0122c1338eccee79cdab905e0b74599361bc08 [2023-12-02 14:11:38,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:11:38,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:11:38,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:11:38,938 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:11:38,938 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:11:38,940 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee1bcc63-a64d-41e0-8e23-9b94c0425402/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-nondet/nondet-array-1.i [2023-12-02 14:11:41,707 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:11:41,940 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:11:41,940 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee1bcc63-a64d-41e0-8e23-9b94c0425402/sv-benchmarks/c/pthread-nondet/nondet-array-1.i [2023-12-02 14:11:41,955 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee1bcc63-a64d-41e0-8e23-9b94c0425402/bin/utaipan-verify-nQ1chXbOIh/data/628bea866/9afb2fc6d27d46798283c26c668443cb/FLAG775a44df3 [2023-12-02 14:11:41,970 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee1bcc63-a64d-41e0-8e23-9b94c0425402/bin/utaipan-verify-nQ1chXbOIh/data/628bea866/9afb2fc6d27d46798283c26c668443cb [2023-12-02 14:11:41,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:11:41,973 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:11:41,974 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:11:41,974 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:11:41,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:11:41,981 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:11:41" (1/1) ... [2023-12-02 14:11:41,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab4d71f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:41, skipping insertion in model container [2023-12-02 14:11:41,982 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:11:41" (1/1) ... [2023-12-02 14:11:42,028 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:11:42,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:11:42,330 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:11:42,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:11:42,404 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:11:42,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:42 WrapperNode [2023-12-02 14:11:42,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:11:42,406 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:11:42,406 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:11:42,406 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:11:42,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:42" (1/1) ... [2023-12-02 14:11:42,464 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:42" (1/1) ... [2023-12-02 14:11:42,497 INFO L138 Inliner]: procedures = 170, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 85 [2023-12-02 14:11:42,498 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:11:42,498 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:11:42,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:11:42,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:11:42,508 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:42" (1/1) ... [2023-12-02 14:11:42,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:42" (1/1) ... [2023-12-02 14:11:42,511 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:42" (1/1) ... [2023-12-02 14:11:42,512 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:42" (1/1) ... [2023-12-02 14:11:42,520 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:42" (1/1) ... [2023-12-02 14:11:42,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:42" (1/1) ... [2023-12-02 14:11:42,526 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:42" (1/1) ... [2023-12-02 14:11:42,527 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:42" (1/1) ... [2023-12-02 14:11:42,531 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:11:42,532 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:11:42,532 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:11:42,532 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:11:42,533 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:42" (1/1) ... [2023-12-02 14:11:42,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:11:42,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee1bcc63-a64d-41e0-8e23-9b94c0425402/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:11:42,563 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee1bcc63-a64d-41e0-8e23-9b94c0425402/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:11:42,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee1bcc63-a64d-41e0-8e23-9b94c0425402/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:11:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 14:11:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 14:11:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 14:11:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2023-12-02 14:11:42,603 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2023-12-02 14:11:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:11:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 14:11:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 14:11:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:11:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:11:42,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:11:42,606 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 14:11:42,734 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:11:42,736 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:11:42,948 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:11:42,959 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:11:42,960 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-02 14:11:42,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:11:42 BoogieIcfgContainer [2023-12-02 14:11:42,962 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:11:42,965 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:11:42,965 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:11:42,968 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:11:42,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:11:41" (1/3) ... [2023-12-02 14:11:42,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a09f9f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:11:42, skipping insertion in model container [2023-12-02 14:11:42,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:42" (2/3) ... [2023-12-02 14:11:42,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a09f9f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:11:42, skipping insertion in model container [2023-12-02 14:11:42,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:11:42" (3/3) ... [2023-12-02 14:11:42,971 INFO L112 eAbstractionObserver]: Analyzing ICFG nondet-array-1.i [2023-12-02 14:11:42,980 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 14:11:42,991 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:11:42,991 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-12-02 14:11:42,991 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 14:11:43,048 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-12-02 14:11:43,079 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 112 places, 117 transitions, 241 flow [2023-12-02 14:11:43,155 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1294 states, 1272 states have (on average 2.032232704402516) internal successors, (2585), 1293 states have internal predecessors, (2585), 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 14:11:43,173 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:11:43,180 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;@4b3c80e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:11:43,180 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-12-02 14:11:43,185 INFO L276 IsEmpty]: Start isEmpty. Operand has 1294 states, 1272 states have (on average 2.032232704402516) internal successors, (2585), 1293 states have internal predecessors, (2585), 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 14:11:43,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 14:11:43,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:11:43,193 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] [2023-12-02 14:11:43,194 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-12-02 14:11:43,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:11:43,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1675524990, now seen corresponding path program 1 times [2023-12-02 14:11:43,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:11:43,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558429981] [2023-12-02 14:11:43,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:11:43,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:11:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:11:43,472 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 14:11:43,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:11:43,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558429981] [2023-12-02 14:11:43,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558429981] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:11:43,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:11:43,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:11:43,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300404411] [2023-12-02 14:11:43,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:11:43,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:11:43,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:11:43,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:11:43,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:11:43,516 INFO L87 Difference]: Start difference. First operand has 1294 states, 1272 states have (on average 2.032232704402516) internal successors, (2585), 1293 states have internal predecessors, (2585), 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 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 14:11:43,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:11:43,582 INFO L93 Difference]: Finished difference Result 1175 states and 2237 transitions. [2023-12-02 14:11:43,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:11:43,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 35 [2023-12-02 14:11:43,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:11:43,605 INFO L225 Difference]: With dead ends: 1175 [2023-12-02 14:11:43,605 INFO L226 Difference]: Without dead ends: 1122 [2023-12-02 14:11:43,606 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 14:11:43,609 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 66 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:11:43,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 245 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:11:43,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2023-12-02 14:11:43,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1122. [2023-12-02 14:11:43,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1105 states have (on average 1.930316742081448) internal successors, (2133), 1121 states have internal predecessors, (2133), 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 14:11:43,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 2133 transitions. [2023-12-02 14:11:43,712 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 2133 transitions. Word has length 35 [2023-12-02 14:11:43,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:11:43,712 INFO L495 AbstractCegarLoop]: Abstraction has 1122 states and 2133 transitions. [2023-12-02 14:11:43,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 14:11:43,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 2133 transitions. [2023-12-02 14:11:43,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 14:11:43,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:11:43,714 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] [2023-12-02 14:11:43,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:11:43,715 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-12-02 14:11:43,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:11:43,716 INFO L85 PathProgramCache]: Analyzing trace with hash 2071611748, now seen corresponding path program 1 times [2023-12-02 14:11:43,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:11:43,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64986876] [2023-12-02 14:11:43,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:11:43,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:11:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:11:43,929 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 14:11:43,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:11:43,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64986876] [2023-12-02 14:11:43,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64986876] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:11:43,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:11:43,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 14:11:43,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716586086] [2023-12-02 14:11:43,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:11:43,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 14:11:43,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:11:43,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 14:11:43,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:11:43,933 INFO L87 Difference]: Start difference. First operand 1122 states and 2133 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 14:11:44,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:11:44,050 INFO L93 Difference]: Finished difference Result 886 states and 1635 transitions. [2023-12-02 14:11:44,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:11:44,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 36 [2023-12-02 14:11:44,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:11:44,057 INFO L225 Difference]: With dead ends: 886 [2023-12-02 14:11:44,057 INFO L226 Difference]: Without dead ends: 872 [2023-12-02 14:11:44,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:11:44,059 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 141 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:11:44,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 218 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:11:44,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2023-12-02 14:11:44,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 860. [2023-12-02 14:11:44,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 846 states have (on average 1.8912529550827424) internal successors, (1600), 859 states have internal predecessors, (1600), 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 14:11:44,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1600 transitions. [2023-12-02 14:11:44,092 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1600 transitions. Word has length 36 [2023-12-02 14:11:44,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:11:44,092 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 1600 transitions. [2023-12-02 14:11:44,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 14:11:44,093 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1600 transitions. [2023-12-02 14:11:44,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 14:11:44,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:11:44,095 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 14:11:44,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:11:44,095 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-12-02 14:11:44,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:11:44,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1258733924, now seen corresponding path program 1 times [2023-12-02 14:11:44,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:11:44,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115183285] [2023-12-02 14:11:44,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:11:44,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:11:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:11:44,130 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 14:11:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:11:44,172 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 14:11:44,173 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 14:11:44,174 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2023-12-02 14:11:44,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-12-02 14:11:44,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-12-02 14:11:44,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-12-02 14:11:44,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2023-12-02 14:11:44,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-12-02 14:11:44,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-12-02 14:11:44,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-12-02 14:11:44,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-12-02 14:11:44,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 14:11:44,181 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-02 14:11:44,183 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-02 14:11:44,183 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-12-02 14:11:44,215 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-02 14:11:44,220 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 136 places, 140 transitions, 296 flow [2023-12-02 14:11:45,083 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 29520 states, 29414 states have (on average 2.9306112735432106) internal successors, (86201), 29519 states have internal predecessors, (86201), 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 14:11:45,084 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:11:45,085 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;@4b3c80e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:11:45,086 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-12-02 14:11:45,158 INFO L276 IsEmpty]: Start isEmpty. Operand has 29520 states, 29414 states have (on average 2.9306112735432106) internal successors, (86201), 29519 states have internal predecessors, (86201), 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 14:11:45,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 14:11:45,159 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:11:45,159 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] [2023-12-02 14:11:45,159 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2023-12-02 14:11:45,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:11:45,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1699899598, now seen corresponding path program 1 times [2023-12-02 14:11:45,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:11:45,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896503701] [2023-12-02 14:11:45,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:11:45,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:11:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:11:45,270 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 14:11:45,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:11:45,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896503701] [2023-12-02 14:11:45,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896503701] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:11:45,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:11:45,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:11:45,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62765181] [2023-12-02 14:11:45,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:11:45,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:11:45,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:11:45,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:11:45,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:11:45,315 INFO L87 Difference]: Start difference. First operand has 29520 states, 29414 states have (on average 2.9306112735432106) internal successors, (86201), 29519 states have internal predecessors, (86201), 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 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 14:11:45,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:11:45,885 INFO L93 Difference]: Finished difference Result 34856 states and 97152 transitions. [2023-12-02 14:11:45,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:11:45,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 35 [2023-12-02 14:11:45,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:11:46,170 INFO L225 Difference]: With dead ends: 34856 [2023-12-02 14:11:46,170 INFO L226 Difference]: Without dead ends: 34599 [2023-12-02 14:11:46,170 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 14:11:46,171 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 96 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:11:46,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 305 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:11:46,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34599 states. [2023-12-02 14:11:47,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34599 to 26539. [2023-12-02 14:11:47,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26539 states, 26434 states have (on average 2.830786108799274) internal successors, (74829), 26538 states have internal predecessors, (74829), 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 14:11:47,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26539 states to 26539 states and 74829 transitions. [2023-12-02 14:11:47,410 INFO L78 Accepts]: Start accepts. Automaton has 26539 states and 74829 transitions. Word has length 35 [2023-12-02 14:11:47,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:11:47,411 INFO L495 AbstractCegarLoop]: Abstraction has 26539 states and 74829 transitions. [2023-12-02 14:11:47,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 14:11:47,411 INFO L276 IsEmpty]: Start isEmpty. Operand 26539 states and 74829 transitions. [2023-12-02 14:11:47,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 14:11:47,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:11:47,412 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] [2023-12-02 14:11:47,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 14:11:47,413 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2023-12-02 14:11:47,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:11:47,414 INFO L85 PathProgramCache]: Analyzing trace with hash -684448668, now seen corresponding path program 1 times [2023-12-02 14:11:47,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:11:47,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454954958] [2023-12-02 14:11:47,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:11:47,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:11:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:11:47,514 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 14:11:47,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:11:47,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454954958] [2023-12-02 14:11:47,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454954958] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:11:47,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:11:47,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 14:11:47,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602158787] [2023-12-02 14:11:47,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:11:47,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 14:11:47,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:11:47,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 14:11:47,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:11:47,517 INFO L87 Difference]: Start difference. First operand 26539 states and 74829 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 14:11:47,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:11:47,897 INFO L93 Difference]: Finished difference Result 22390 states and 61044 transitions. [2023-12-02 14:11:47,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:11:47,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 36 [2023-12-02 14:11:47,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:11:47,981 INFO L225 Difference]: With dead ends: 22390 [2023-12-02 14:11:47,981 INFO L226 Difference]: Without dead ends: 22349 [2023-12-02 14:11:47,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:11:47,982 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 190 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:11:47,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 379 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:11:48,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22349 states. [2023-12-02 14:11:48,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22349 to 21054. [2023-12-02 14:11:48,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21054 states, 20962 states have (on average 2.7862322297490696) internal successors, (58405), 21053 states have internal predecessors, (58405), 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 14:11:48,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21054 states to 21054 states and 58405 transitions. [2023-12-02 14:11:48,677 INFO L78 Accepts]: Start accepts. Automaton has 21054 states and 58405 transitions. Word has length 36 [2023-12-02 14:11:48,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:11:48,677 INFO L495 AbstractCegarLoop]: Abstraction has 21054 states and 58405 transitions. [2023-12-02 14:11:48,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 14:11:48,678 INFO L276 IsEmpty]: Start isEmpty. Operand 21054 states and 58405 transitions. [2023-12-02 14:11:48,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 14:11:48,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:11:48,680 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] [2023-12-02 14:11:48,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 14:11:48,680 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2023-12-02 14:11:48,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:11:48,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1136145069, now seen corresponding path program 1 times [2023-12-02 14:11:48,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:11:48,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592272038] [2023-12-02 14:11:48,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:11:48,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:11:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:11:49,159 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 14:11:49,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:11:49,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592272038] [2023-12-02 14:11:49,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592272038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:11:49,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:11:49,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 14:11:49,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599373781] [2023-12-02 14:11:49,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:11:49,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:11:49,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:11:49,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:11:49,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 14:11:49,163 INFO L87 Difference]: Start difference. First operand 21054 states and 58405 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 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 14:11:49,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:11:49,880 INFO L93 Difference]: Finished difference Result 30531 states and 85259 transitions. [2023-12-02 14:11:49,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 14:11:49,881 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 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 43 [2023-12-02 14:11:49,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:11:49,981 INFO L225 Difference]: With dead ends: 30531 [2023-12-02 14:11:49,982 INFO L226 Difference]: Without dead ends: 30531 [2023-12-02 14:11:49,982 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 14:11:49,983 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 272 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 14:11:49,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 876 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 14:11:50,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30531 states. [2023-12-02 14:11:50,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30531 to 23438. [2023-12-02 14:11:50,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23438 states, 23346 states have (on average 2.790456609269254) internal successors, (65146), 23437 states have internal predecessors, (65146), 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 14:11:50,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23438 states to 23438 states and 65146 transitions. [2023-12-02 14:11:50,655 INFO L78 Accepts]: Start accepts. Automaton has 23438 states and 65146 transitions. Word has length 43 [2023-12-02 14:11:50,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:11:50,656 INFO L495 AbstractCegarLoop]: Abstraction has 23438 states and 65146 transitions. [2023-12-02 14:11:50,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 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 14:11:50,656 INFO L276 IsEmpty]: Start isEmpty. Operand 23438 states and 65146 transitions. [2023-12-02 14:11:50,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 14:11:50,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:11:50,658 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] [2023-12-02 14:11:50,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 14:11:50,658 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2023-12-02 14:11:50,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:11:50,659 INFO L85 PathProgramCache]: Analyzing trace with hash -996210939, now seen corresponding path program 1 times [2023-12-02 14:11:50,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:11:50,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241677980] [2023-12-02 14:11:50,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:11:50,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:11:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:11:50,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 14:11:50,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:11:50,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241677980] [2023-12-02 14:11:50,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241677980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:11:50,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:11:50,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 14:11:50,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912505901] [2023-12-02 14:11:50,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:11:50,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:11:50,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:11:50,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:11:50,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 14:11:50,951 INFO L87 Difference]: Start difference. First operand 23438 states and 65146 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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 14:11:51,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:11:51,484 INFO L93 Difference]: Finished difference Result 25795 states and 71221 transitions. [2023-12-02 14:11:51,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 14:11:51,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2023-12-02 14:11:51,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:11:51,579 INFO L225 Difference]: With dead ends: 25795 [2023-12-02 14:11:51,579 INFO L226 Difference]: Without dead ends: 25789 [2023-12-02 14:11:51,579 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 14:11:51,580 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 146 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 14:11:51,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 594 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 14:11:51,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25789 states. [2023-12-02 14:11:52,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25789 to 25116. [2023-12-02 14:11:52,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25116 states, 25027 states have (on average 2.793343189355496) internal successors, (69909), 25115 states have internal predecessors, (69909), 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 14:11:52,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25116 states to 25116 states and 69909 transitions. [2023-12-02 14:11:52,326 INFO L78 Accepts]: Start accepts. Automaton has 25116 states and 69909 transitions. Word has length 46 [2023-12-02 14:11:52,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:11:52,326 INFO L495 AbstractCegarLoop]: Abstraction has 25116 states and 69909 transitions. [2023-12-02 14:11:52,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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 14:11:52,326 INFO L276 IsEmpty]: Start isEmpty. Operand 25116 states and 69909 transitions. [2023-12-02 14:11:52,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 14:11:52,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:11:52,327 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] [2023-12-02 14:11:52,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 14:11:52,328 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2023-12-02 14:11:52,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:11:52,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1382249774, now seen corresponding path program 1 times [2023-12-02 14:11:52,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:11:52,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919272465] [2023-12-02 14:11:52,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:11:52,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:11:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:11:52,370 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 14:11:52,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:11:52,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919272465] [2023-12-02 14:11:52,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919272465] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:11:52,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:11:52,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:11:52,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299506466] [2023-12-02 14:11:52,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:11:52,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:11:52,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:11:52,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:11:52,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:11:52,373 INFO L87 Difference]: Start difference. First operand 25116 states and 69909 transitions. 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 14:11:52,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:11:52,535 INFO L93 Difference]: Finished difference Result 26592 states and 74086 transitions. [2023-12-02 14:11:52,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:11:52,535 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 14:11:52,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:11:52,612 INFO L225 Difference]: With dead ends: 26592 [2023-12-02 14:11:52,612 INFO L226 Difference]: Without dead ends: 25312 [2023-12-02 14:11:52,613 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 14:11:52,614 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 79 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:11:52,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 310 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:11:52,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25312 states. [2023-12-02 14:11:53,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25312 to 24490. [2023-12-02 14:11:53,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24490 states, 24407 states have (on average 2.7901831441799483) internal successors, (68100), 24489 states have internal predecessors, (68100), 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 14:11:53,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24490 states to 24490 states and 68100 transitions. [2023-12-02 14:11:53,259 INFO L78 Accepts]: Start accepts. Automaton has 24490 states and 68100 transitions. Word has length 48 [2023-12-02 14:11:53,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:11:53,259 INFO L495 AbstractCegarLoop]: Abstraction has 24490 states and 68100 transitions. [2023-12-02 14:11:53,260 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 14:11:53,260 INFO L276 IsEmpty]: Start isEmpty. Operand 24490 states and 68100 transitions. [2023-12-02 14:11:53,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 14:11:53,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:11:53,262 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-02 14:11:53,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 14:11:53,262 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2023-12-02 14:11:53,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:11:53,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1809059672, now seen corresponding path program 1 times [2023-12-02 14:11:53,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:11:53,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409939521] [2023-12-02 14:11:53,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:11:53,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:11:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:11:53,286 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 14:11:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:11:53,308 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 14:11:53,308 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 14:11:53,308 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2023-12-02 14:11:53,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-12-02 14:11:53,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-12-02 14:11:53,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-12-02 14:11:53,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-12-02 14:11:53,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-12-02 14:11:53,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-12-02 14:11:53,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-12-02 14:11:53,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-12-02 14:11:53,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-12-02 14:11:53,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-12-02 14:11:53,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-12-02 14:11:53,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 14:11:53,311 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-02 14:11:53,311 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-02 14:11:53,311 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-12-02 14:11:53,343 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-12-02 14:11:53,346 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 160 places, 163 transitions, 353 flow [2023-12-02 14:12:09,081 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 674780 states, 674278 states have (on average 3.8422164151878007) internal successors, (2590722), 674779 states have internal predecessors, (2590722), 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 14:12:09,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:12:09,095 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;@4b3c80e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:12:09,095 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-12-02 14:12:09,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 674780 states, 674278 states have (on average 3.8422164151878007) internal successors, (2590722), 674779 states have internal predecessors, (2590722), 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 14:12:09,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 14:12:09,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:12:09,935 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] [2023-12-02 14:12:09,935 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2023-12-02 14:12:09,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:12:09,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1273386343, now seen corresponding path program 1 times [2023-12-02 14:12:09,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:12:09,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996871359] [2023-12-02 14:12:09,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:09,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:12:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:09,969 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 14:12:09,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:12:09,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996871359] [2023-12-02 14:12:09,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996871359] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:12:09,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:12:09,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:12:09,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070044028] [2023-12-02 14:12:09,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:12:09,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:12:09,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:12:09,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:12:09,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:12:10,819 INFO L87 Difference]: Start difference. First operand has 674780 states, 674278 states have (on average 3.8422164151878007) internal successors, (2590722), 674779 states have internal predecessors, (2590722), 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 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 14:12:22,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:12:22,707 INFO L93 Difference]: Finished difference Result 932987 states and 3416149 transitions. [2023-12-02 14:12:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:12:22,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 35 [2023-12-02 14:12:22,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:12:30,338 INFO L225 Difference]: With dead ends: 932987 [2023-12-02 14:12:30,339 INFO L226 Difference]: Without dead ends: 931914 [2023-12-02 14:12:30,339 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 14:12:30,340 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 116 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:12:30,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 344 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:12:33,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931914 states. [2023-12-02 14:12:55,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931914 to 629794. [2023-12-02 14:12:56,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629794 states, 629225 states have (on average 3.7292907942309985) internal successors, (2346563), 629793 states have internal predecessors, (2346563), 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 14:13:00,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629794 states to 629794 states and 2346563 transitions. [2023-12-02 14:13:00,851 INFO L78 Accepts]: Start accepts. Automaton has 629794 states and 2346563 transitions. Word has length 35 [2023-12-02 14:13:00,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:13:00,851 INFO L495 AbstractCegarLoop]: Abstraction has 629794 states and 2346563 transitions. [2023-12-02 14:13:00,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 14:13:00,852 INFO L276 IsEmpty]: Start isEmpty. Operand 629794 states and 2346563 transitions. [2023-12-02 14:13:00,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 14:13:00,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:13:00,852 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] [2023-12-02 14:13:00,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 14:13:00,853 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2023-12-02 14:13:00,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:13:00,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1040205020, now seen corresponding path program 1 times [2023-12-02 14:13:00,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:13:00,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577356552] [2023-12-02 14:13:00,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:13:00,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:13:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:13:00,926 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 14:13:00,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:13:00,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577356552] [2023-12-02 14:13:00,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577356552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:13:00,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:13:00,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 14:13:00,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895681934] [2023-12-02 14:13:00,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:13:00,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 14:13:00,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:13:00,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 14:13:00,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:13:00,929 INFO L87 Difference]: Start difference. First operand 629794 states and 2346563 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 14:13:07,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:13:07,094 INFO L93 Difference]: Finished difference Result 553319 states and 1996417 transitions. [2023-12-02 14:13:07,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:13:07,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 36 [2023-12-02 14:13:07,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:13:10,767 INFO L225 Difference]: With dead ends: 553319 [2023-12-02 14:13:10,767 INFO L226 Difference]: Without dead ends: 553197 [2023-12-02 14:13:10,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:13:10,781 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 273 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:13:10,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 505 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 14:13:12,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553197 states. [2023-12-02 14:13:25,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553197 to 506792. [2023-12-02 14:13:26,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506792 states, 506280 states have (on average 3.6774176345105474) internal successors, (1861803), 506791 states have internal predecessors, (1861803), 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 14:13:29,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506792 states to 506792 states and 1861803 transitions. [2023-12-02 14:13:29,752 INFO L78 Accepts]: Start accepts. Automaton has 506792 states and 1861803 transitions. Word has length 36 [2023-12-02 14:13:29,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:13:29,753 INFO L495 AbstractCegarLoop]: Abstraction has 506792 states and 1861803 transitions. [2023-12-02 14:13:29,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 14:13:29,753 INFO L276 IsEmpty]: Start isEmpty. Operand 506792 states and 1861803 transitions. [2023-12-02 14:13:29,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 14:13:29,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:13:29,754 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] [2023-12-02 14:13:29,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 14:13:29,754 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2023-12-02 14:13:29,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:13:29,754 INFO L85 PathProgramCache]: Analyzing trace with hash 68532204, now seen corresponding path program 1 times [2023-12-02 14:13:29,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:13:29,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312027640] [2023-12-02 14:13:29,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:13:29,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:13:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:13:30,014 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 14:13:30,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:13:30,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312027640] [2023-12-02 14:13:30,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312027640] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:13:30,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:13:30,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 14:13:30,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970476206] [2023-12-02 14:13:30,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:13:30,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:13:30,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:13:30,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:13:30,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 14:13:30,016 INFO L87 Difference]: Start difference. First operand 506792 states and 1861803 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 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)