./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-join-counter-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/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_8d22d014-23d0-4815-8fbd-d62df9b6f139/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-join-counter-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/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_8d22d014-23d0-4815-8fbd-d62df9b6f139/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 678d0822783009bcb35d951b8e726d754b85c570b149dafb90ced3b5185856fb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:18:08,736 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:18:08,807 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-12-02 15:18:08,811 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:18:08,812 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:18:08,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:18:08,836 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:18:08,837 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:18:08,837 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:18:08,838 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:18:08,838 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:18:08,839 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:18:08,839 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:18:08,840 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:18:08,840 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:18:08,841 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:18:08,841 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:18:08,842 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:18:08,842 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:18:08,843 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:18:08,843 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:18:08,844 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:18:08,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:18:08,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:18:08,845 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:18:08,846 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:18:08,846 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:18:08,846 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:18:08,847 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:18:08,847 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:18:08,848 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:18:08,848 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 15:18:08,849 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 15:18:08,849 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:18:08,849 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:18:08,850 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:18:08,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:18:08,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:18:08,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:18:08,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:18:08,851 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:18:08,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:18:08,851 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:18:08,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:18:08,852 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:18:08,852 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:18:08,852 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:18:08,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:18:08,852 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_8d22d014-23d0-4815-8fbd-d62df9b6f139/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 678d0822783009bcb35d951b8e726d754b85c570b149dafb90ced3b5185856fb [2023-12-02 15:18:09,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:18:09,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:18:09,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:18:09,104 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:18:09,104 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:18:09,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-join-counter-2.i [2023-12-02 15:18:11,838 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:18:12,061 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:18:12,061 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/sv-benchmarks/c/pthread-race-challenges/per-thread-array-join-counter-2.i [2023-12-02 15:18:12,083 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/bin/utaipan-verify-nQ1chXbOIh/data/ac75f7ea5/f74588e7c974492e9ed467c3b92e7cf6/FLAG06f7e54a3 [2023-12-02 15:18:12,095 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/bin/utaipan-verify-nQ1chXbOIh/data/ac75f7ea5/f74588e7c974492e9ed467c3b92e7cf6 [2023-12-02 15:18:12,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:18:12,098 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:18:12,100 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:18:12,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:18:12,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:18:12,105 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:18:12" (1/1) ... [2023-12-02 15:18:12,106 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c7eb840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:12, skipping insertion in model container [2023-12-02 15:18:12,106 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:18:12" (1/1) ... [2023-12-02 15:18:12,157 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:18:12,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:18:12,591 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:18:12,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:18:12,691 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:18:12,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:12 WrapperNode [2023-12-02 15:18:12,691 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:18:12,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:18:12,692 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:18:12,693 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:18:12,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:12" (1/1) ... [2023-12-02 15:18:12,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:12" (1/1) ... [2023-12-02 15:18:12,745 INFO L138 Inliner]: procedures = 271, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 183 [2023-12-02 15:18:12,745 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:18:12,746 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:18:12,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:18:12,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:18:12,755 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:12" (1/1) ... [2023-12-02 15:18:12,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:12" (1/1) ... [2023-12-02 15:18:12,763 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:12" (1/1) ... [2023-12-02 15:18:12,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:12" (1/1) ... [2023-12-02 15:18:12,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:12" (1/1) ... [2023-12-02 15:18:12,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:12" (1/1) ... [2023-12-02 15:18:12,792 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:12" (1/1) ... [2023-12-02 15:18:12,795 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:12" (1/1) ... [2023-12-02 15:18:12,800 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:18:12,801 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:18:12,802 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:18:12,802 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:18:12,803 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:12" (1/1) ... [2023-12-02 15:18:12,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:18:12,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:18:12,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:18:12,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:18:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:18:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 15:18:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:18:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 15:18:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 15:18:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:18:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:18:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 15:18:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 15:18:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:18:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 15:18:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure cleaner [2023-12-02 15:18:12,882 INFO L138 BoogieDeclarations]: Found implementation of procedure cleaner [2023-12-02 15:18:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:18:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-12-02 15:18:12,883 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-12-02 15:18:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:18:12,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:18:12,885 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 15:18:13,045 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:18:13,046 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:18:13,501 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:18:13,536 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:18:13,537 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-12-02 15:18:13,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:18:13 BoogieIcfgContainer [2023-12-02 15:18:13,539 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:18:13,542 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:18:13,542 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:18:13,545 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:18:13,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:18:12" (1/3) ... [2023-12-02 15:18:13,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd92323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:18:13, skipping insertion in model container [2023-12-02 15:18:13,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:12" (2/3) ... [2023-12-02 15:18:13,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd92323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:18:13, skipping insertion in model container [2023-12-02 15:18:13,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:18:13" (3/3) ... [2023-12-02 15:18:13,548 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-array-join-counter-2.i [2023-12-02 15:18:13,556 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 15:18:13,566 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:18:13,566 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-12-02 15:18:13,566 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 15:18:13,664 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-02 15:18:13,702 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 400 places, 409 transitions, 832 flow [2023-12-02 15:18:18,573 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 220339 states, 219572 states have (on average 3.015011021441714) internal successors, (662012), 220338 states have internal predecessors, (662012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:18:18,594 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:18:18,600 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;@6a1194fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:18:18,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-12-02 15:18:18,877 INFO L276 IsEmpty]: Start isEmpty. Operand has 220339 states, 219572 states have (on average 3.015011021441714) internal successors, (662012), 220338 states have internal predecessors, (662012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:18:18,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 15:18:18,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:18:18,884 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] [2023-12-02 15:18:18,884 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:18:18,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:18:18,889 INFO L85 PathProgramCache]: Analyzing trace with hash -605869227, now seen corresponding path program 1 times [2023-12-02 15:18:18,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:18:18,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295774139] [2023-12-02 15:18:18,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:18:18,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:18:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:18:19,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:18:19,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:18:19,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295774139] [2023-12-02 15:18:19,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295774139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:18:19,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:18:19,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:18:19,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262957214] [2023-12-02 15:18:19,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:18:19,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:18:19,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:18:19,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:18:19,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:18:19,381 INFO L87 Difference]: Start difference. First operand has 220339 states, 219572 states have (on average 3.015011021441714) internal successors, (662012), 220338 states have internal predecessors, (662012), 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 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:18:21,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:18:21,701 INFO L93 Difference]: Finished difference Result 212586 states and 628050 transitions. [2023-12-02 15:18:21,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:18:21,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 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 38 [2023-12-02 15:18:21,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:18:22,670 INFO L225 Difference]: With dead ends: 212586 [2023-12-02 15:18:22,671 INFO L226 Difference]: Without dead ends: 212577 [2023-12-02 15:18:22,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:18:22,675 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 2 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:18:22,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 561 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:18:23,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212577 states. [2023-12-02 15:18:27,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212577 to 212577. [2023-12-02 15:18:27,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212577 states, 211870 states have (on average 2.964237504129891) internal successors, (628033), 212576 states have internal predecessors, (628033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:18:28,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212577 states to 212577 states and 628033 transitions. [2023-12-02 15:18:28,875 INFO L78 Accepts]: Start accepts. Automaton has 212577 states and 628033 transitions. Word has length 38 [2023-12-02 15:18:28,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:18:28,875 INFO L495 AbstractCegarLoop]: Abstraction has 212577 states and 628033 transitions. [2023-12-02 15:18:28,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:18:28,876 INFO L276 IsEmpty]: Start isEmpty. Operand 212577 states and 628033 transitions. [2023-12-02 15:18:28,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 15:18:28,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:18:28,877 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] [2023-12-02 15:18:28,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:18:28,878 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:18:28,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:18:28,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1773945765, now seen corresponding path program 1 times [2023-12-02 15:18:28,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:18:28,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416321617] [2023-12-02 15:18:28,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:18:28,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:18:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:18:28,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:18:28,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:18:28,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416321617] [2023-12-02 15:18:28,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416321617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:18:28,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:18:28,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:18:28,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426164344] [2023-12-02 15:18:28,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:18:28,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:18:28,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:18:28,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:18:28,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:18:28,964 INFO L87 Difference]: Start difference. First operand 212577 states and 628033 transitions. Second operand has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:18:30,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:18:30,552 INFO L93 Difference]: Finished difference Result 207145 states and 612022 transitions. [2023-12-02 15:18:30,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:18:30,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 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 42 [2023-12-02 15:18:30,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:18:31,599 INFO L225 Difference]: With dead ends: 207145 [2023-12-02 15:18:31,599 INFO L226 Difference]: Without dead ends: 207145 [2023-12-02 15:18:31,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:18:31,601 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 255 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:18:31,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 318 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:18:31,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207145 states. [2023-12-02 15:18:35,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207145 to 207145. [2023-12-02 15:18:35,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207145 states, 206567 states have (on average 2.9628256207429065) internal successors, (612022), 207144 states have internal predecessors, (612022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:18:37,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207145 states to 207145 states and 612022 transitions. [2023-12-02 15:18:37,017 INFO L78 Accepts]: Start accepts. Automaton has 207145 states and 612022 transitions. Word has length 42 [2023-12-02 15:18:37,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:18:37,017 INFO L495 AbstractCegarLoop]: Abstraction has 207145 states and 612022 transitions. [2023-12-02 15:18:37,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:18:37,018 INFO L276 IsEmpty]: Start isEmpty. Operand 207145 states and 612022 transitions. [2023-12-02 15:18:37,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 15:18:37,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:18:37,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:18:37,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:18:37,020 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:18:37,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:18:37,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1930989315, now seen corresponding path program 1 times [2023-12-02 15:18:37,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:18:37,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660156919] [2023-12-02 15:18:37,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:18:37,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:18:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:18:37,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:18:37,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:18:37,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660156919] [2023-12-02 15:18:37,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660156919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:18:37,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:18:37,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:18:37,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532307194] [2023-12-02 15:18:37,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:18:37,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:18:37,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:18:37,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:18:37,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:18:37,615 INFO L87 Difference]: Start difference. First operand 207145 states and 612022 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:18:39,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:18:39,165 INFO L93 Difference]: Finished difference Result 207144 states and 612021 transitions. [2023-12-02 15:18:39,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:18:39,165 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 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 58 [2023-12-02 15:18:39,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:18:39,767 INFO L225 Difference]: With dead ends: 207144 [2023-12-02 15:18:39,767 INFO L226 Difference]: Without dead ends: 207144 [2023-12-02 15:18:39,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:18:39,768 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 4 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:18:39,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 876 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 15:18:40,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207144 states. [2023-12-02 15:18:44,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207144 to 207144. [2023-12-02 15:18:44,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207144 states, 206567 states have (on average 2.9628207796985966) internal successors, (612021), 207143 states have internal predecessors, (612021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:18:45,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207144 states to 207144 states and 612021 transitions. [2023-12-02 15:18:45,470 INFO L78 Accepts]: Start accepts. Automaton has 207144 states and 612021 transitions. Word has length 58 [2023-12-02 15:18:45,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:18:45,471 INFO L495 AbstractCegarLoop]: Abstraction has 207144 states and 612021 transitions. [2023-12-02 15:18:45,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:18:45,471 INFO L276 IsEmpty]: Start isEmpty. Operand 207144 states and 612021 transitions. [2023-12-02 15:18:45,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 15:18:45,473 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:18:45,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:18:45,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 15:18:45,474 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:18:45,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:18:45,474 INFO L85 PathProgramCache]: Analyzing trace with hash 635725154, now seen corresponding path program 1 times [2023-12-02 15:18:45,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:18:45,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669953952] [2023-12-02 15:18:45,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:18:45,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:18:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:18:45,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:18:45,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:18:45,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669953952] [2023-12-02 15:18:45,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669953952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:18:45,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:18:45,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:18:45,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906379805] [2023-12-02 15:18:45,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:18:45,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:18:45,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:18:45,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:18:45,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:18:45,549 INFO L87 Difference]: Start difference. First operand 207144 states and 612021 transitions. Second operand has 3 states, 2 states have (on average 35.0) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:18:46,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:18:46,966 INFO L93 Difference]: Finished difference Result 207143 states and 612020 transitions. [2023-12-02 15:18:46,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:18:46,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 35.0) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-02 15:18:46,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:18:47,589 INFO L225 Difference]: With dead ends: 207143 [2023-12-02 15:18:47,589 INFO L226 Difference]: Without dead ends: 207143 [2023-12-02 15:18:47,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:18:47,590 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 1 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:18:47,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 551 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:18:48,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207143 states. [2023-12-02 15:18:51,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207143 to 207143. [2023-12-02 15:18:52,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207143 states, 206567 states have (on average 2.9628159386542867) internal successors, (612020), 207142 states have internal predecessors, (612020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:18:53,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207143 states to 207143 states and 612020 transitions. [2023-12-02 15:18:53,084 INFO L78 Accepts]: Start accepts. Automaton has 207143 states and 612020 transitions. Word has length 70 [2023-12-02 15:18:53,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:18:53,084 INFO L495 AbstractCegarLoop]: Abstraction has 207143 states and 612020 transitions. [2023-12-02 15:18:53,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 35.0) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:18:53,084 INFO L276 IsEmpty]: Start isEmpty. Operand 207143 states and 612020 transitions. [2023-12-02 15:18:53,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 15:18:53,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:18:53,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:18:53,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 15:18:53,086 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:18:53,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:18:53,087 INFO L85 PathProgramCache]: Analyzing trace with hash -850087579, now seen corresponding path program 1 times [2023-12-02 15:18:53,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:18:53,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166486018] [2023-12-02 15:18:53,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:18:53,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:18:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:18:53,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:18:53,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:18:53,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166486018] [2023-12-02 15:18:53,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166486018] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:18:53,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:18:53,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:18:53,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171382548] [2023-12-02 15:18:53,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:18:53,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:18:53,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:18:53,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:18:53,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:18:53,449 INFO L87 Difference]: Start difference. First operand 207143 states and 612020 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:18:55,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:18:55,118 INFO L93 Difference]: Finished difference Result 207142 states and 612019 transitions. [2023-12-02 15:18:55,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:18:55,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 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 81 [2023-12-02 15:18:55,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:18:55,721 INFO L225 Difference]: With dead ends: 207142 [2023-12-02 15:18:55,722 INFO L226 Difference]: Without dead ends: 207142 [2023-12-02 15:18:55,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:18:55,723 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 6 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:18:55,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 475 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:18:56,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207142 states. [2023-12-02 15:18:59,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207142 to 207142. [2023-12-02 15:18:59,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207142 states, 206567 states have (on average 2.9628110976099764) internal successors, (612019), 207141 states have internal predecessors, (612019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:01,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207142 states to 207142 states and 612019 transitions. [2023-12-02 15:19:01,023 INFO L78 Accepts]: Start accepts. Automaton has 207142 states and 612019 transitions. Word has length 81 [2023-12-02 15:19:01,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:19:01,024 INFO L495 AbstractCegarLoop]: Abstraction has 207142 states and 612019 transitions. [2023-12-02 15:19:01,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:01,024 INFO L276 IsEmpty]: Start isEmpty. Operand 207142 states and 612019 transitions. [2023-12-02 15:19:01,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 15:19:01,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:19:01,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:19:01,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 15:19:01,026 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:19:01,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:19:01,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1723726326, now seen corresponding path program 1 times [2023-12-02 15:19:01,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:19:01,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952678086] [2023-12-02 15:19:01,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:19:01,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:19:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:19:01,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:19:01,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:19:01,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952678086] [2023-12-02 15:19:01,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952678086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:19:01,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:19:01,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:19:01,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071601256] [2023-12-02 15:19:01,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:19:01,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:19:01,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:19:01,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:19:01,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:19:01,474 INFO L87 Difference]: Start difference. First operand 207142 states and 612019 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:03,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:19:03,882 INFO L93 Difference]: Finished difference Result 272893 states and 804695 transitions. [2023-12-02 15:19:03,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:19:03,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 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 93 [2023-12-02 15:19:03,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:19:05,107 INFO L225 Difference]: With dead ends: 272893 [2023-12-02 15:19:05,107 INFO L226 Difference]: Without dead ends: 272893 [2023-12-02 15:19:05,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:19:05,108 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 753 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 15:19:05,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1219 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 15:19:05,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272893 states. [2023-12-02 15:19:09,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272893 to 209619. [2023-12-02 15:19:10,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209619 states, 209205 states have (on average 2.9526158552615853) internal successors, (617702), 209618 states have internal predecessors, (617702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:10,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209619 states to 209619 states and 617702 transitions. [2023-12-02 15:19:10,734 INFO L78 Accepts]: Start accepts. Automaton has 209619 states and 617702 transitions. Word has length 93 [2023-12-02 15:19:10,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:19:10,734 INFO L495 AbstractCegarLoop]: Abstraction has 209619 states and 617702 transitions. [2023-12-02 15:19:10,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:10,735 INFO L276 IsEmpty]: Start isEmpty. Operand 209619 states and 617702 transitions. [2023-12-02 15:19:10,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 15:19:10,737 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:19:10,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:19:10,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 15:19:10,737 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:19:10,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:19:10,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1310639578, now seen corresponding path program 1 times [2023-12-02 15:19:10,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:19:10,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721786659] [2023-12-02 15:19:10,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:19:10,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:19:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:19:10,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:19:10,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:19:10,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721786659] [2023-12-02 15:19:10,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721786659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:19:10,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:19:10,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:19:10,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254006905] [2023-12-02 15:19:10,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:19:10,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:19:10,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:19:10,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:19:10,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:19:10,813 INFO L87 Difference]: Start difference. First operand 209619 states and 617702 transitions. Second operand has 3 states, 2 states have (on average 52.0) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:12,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:19:12,935 INFO L93 Difference]: Finished difference Result 308794 states and 908727 transitions. [2023-12-02 15:19:12,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:19:12,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 52.0) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-02 15:19:12,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:19:14,317 INFO L225 Difference]: With dead ends: 308794 [2023-12-02 15:19:14,317 INFO L226 Difference]: Without dead ends: 308794 [2023-12-02 15:19:14,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:19:14,318 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 182 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:19:14,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 678 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:19:14,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308794 states. [2023-12-02 15:19:19,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308794 to 214908. [2023-12-02 15:19:19,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214908 states, 214502 states have (on average 2.9466345302141703) internal successors, (632059), 214907 states have internal predecessors, (632059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:20,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214908 states to 214908 states and 632059 transitions. [2023-12-02 15:19:20,048 INFO L78 Accepts]: Start accepts. Automaton has 214908 states and 632059 transitions. Word has length 104 [2023-12-02 15:19:20,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:19:20,048 INFO L495 AbstractCegarLoop]: Abstraction has 214908 states and 632059 transitions. [2023-12-02 15:19:20,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 52.0) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:20,048 INFO L276 IsEmpty]: Start isEmpty. Operand 214908 states and 632059 transitions. [2023-12-02 15:19:20,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-02 15:19:20,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:19:20,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:19:20,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 15:19:20,051 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:19:20,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:19:20,052 INFO L85 PathProgramCache]: Analyzing trace with hash 813005488, now seen corresponding path program 1 times [2023-12-02 15:19:20,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:19:20,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875644971] [2023-12-02 15:19:20,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:19:20,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:19:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:19:20,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:19:20,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:19:20,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875644971] [2023-12-02 15:19:20,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875644971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:19:20,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:19:20,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:19:20,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434311893] [2023-12-02 15:19:20,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:19:20,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:19:20,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:19:20,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:19:20,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:19:20,162 INFO L87 Difference]: Start difference. First operand 214908 states and 632059 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:21,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:19:21,663 INFO L93 Difference]: Finished difference Result 217523 states and 637313 transitions. [2023-12-02 15:19:21,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:19:21,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-02 15:19:21,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:19:22,280 INFO L225 Difference]: With dead ends: 217523 [2023-12-02 15:19:22,280 INFO L226 Difference]: Without dead ends: 217523 [2023-12-02 15:19:22,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:19:22,281 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 206 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:19:22,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 1028 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:19:22,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217523 states. [2023-12-02 15:19:26,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217523 to 215289. [2023-12-02 15:19:26,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215289 states, 214883 states have (on average 2.944946784994625) internal successors, (632819), 215288 states have internal predecessors, (632819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:27,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215289 states to 215289 states and 632819 transitions. [2023-12-02 15:19:27,655 INFO L78 Accepts]: Start accepts. Automaton has 215289 states and 632819 transitions. Word has length 107 [2023-12-02 15:19:27,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:19:27,655 INFO L495 AbstractCegarLoop]: Abstraction has 215289 states and 632819 transitions. [2023-12-02 15:19:27,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:27,655 INFO L276 IsEmpty]: Start isEmpty. Operand 215289 states and 632819 transitions. [2023-12-02 15:19:27,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-02 15:19:27,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:19:27,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:19:27,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 15:19:27,657 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting cleanerErr2ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:19:27,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:19:27,657 INFO L85 PathProgramCache]: Analyzing trace with hash -740858141, now seen corresponding path program 1 times [2023-12-02 15:19:27,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:19:27,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068721040] [2023-12-02 15:19:27,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:19:27,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:19:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:19:27,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:19:27,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:19:27,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068721040] [2023-12-02 15:19:27,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068721040] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:19:27,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:19:27,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:19:27,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472420772] [2023-12-02 15:19:27,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:19:27,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:19:27,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:19:27,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:19:27,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:19:27,728 INFO L87 Difference]: Start difference. First operand 215289 states and 632819 transitions. Second operand has 3 states, 2 states have (on average 55.0) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:29,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:19:29,063 INFO L93 Difference]: Finished difference Result 213500 states and 628140 transitions. [2023-12-02 15:19:29,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:19:29,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 55.0) internal successors, (110), 3 states have internal predecessors, (110), 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 110 [2023-12-02 15:19:29,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:19:29,724 INFO L225 Difference]: With dead ends: 213500 [2023-12-02 15:19:29,724 INFO L226 Difference]: Without dead ends: 213500 [2023-12-02 15:19:29,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:19:29,725 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 185 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:19:29,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 540 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:19:30,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213500 states. [2023-12-02 15:19:33,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213500 to 201836. [2023-12-02 15:19:33,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201836 states, 201593 states have (on average 2.9411487502046203) internal successors, (592915), 201835 states have internal predecessors, (592915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:34,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201836 states to 201836 states and 592915 transitions. [2023-12-02 15:19:34,521 INFO L78 Accepts]: Start accepts. Automaton has 201836 states and 592915 transitions. Word has length 110 [2023-12-02 15:19:34,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:19:34,521 INFO L495 AbstractCegarLoop]: Abstraction has 201836 states and 592915 transitions. [2023-12-02 15:19:34,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 55.0) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:34,521 INFO L276 IsEmpty]: Start isEmpty. Operand 201836 states and 592915 transitions. [2023-12-02 15:19:34,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-02 15:19:34,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:19:34,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:19:34,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 15:19:34,523 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting cleanerErr3ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:19:34,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:19:34,523 INFO L85 PathProgramCache]: Analyzing trace with hash 932849054, now seen corresponding path program 1 times [2023-12-02 15:19:34,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:19:34,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890426727] [2023-12-02 15:19:34,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:19:34,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:19:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:19:34,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:19:34,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:19:34,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890426727] [2023-12-02 15:19:34,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890426727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:19:34,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:19:34,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:19:34,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764041506] [2023-12-02 15:19:34,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:19:34,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:19:34,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:19:34,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:19:34,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:19:34,642 INFO L87 Difference]: Start difference. First operand 201836 states and 592915 transitions. Second operand has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:36,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:19:36,366 INFO L93 Difference]: Finished difference Result 236597 states and 696117 transitions. [2023-12-02 15:19:36,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:19:36,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 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 113 [2023-12-02 15:19:36,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:19:37,109 INFO L225 Difference]: With dead ends: 236597 [2023-12-02 15:19:37,109 INFO L226 Difference]: Without dead ends: 236597 [2023-12-02 15:19:37,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:19:37,109 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 103 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:19:37,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 528 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:19:37,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236597 states. [2023-12-02 15:19:41,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236597 to 201680. [2023-12-02 15:19:41,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201680 states, 201444 states have (on average 2.9410357220865353) internal successors, (592454), 201679 states have internal predecessors, (592454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:42,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201680 states to 201680 states and 592454 transitions. [2023-12-02 15:19:42,469 INFO L78 Accepts]: Start accepts. Automaton has 201680 states and 592454 transitions. Word has length 113 [2023-12-02 15:19:42,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:19:42,470 INFO L495 AbstractCegarLoop]: Abstraction has 201680 states and 592454 transitions. [2023-12-02 15:19:42,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:42,470 INFO L276 IsEmpty]: Start isEmpty. Operand 201680 states and 592454 transitions. [2023-12-02 15:19:42,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-02 15:19:42,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:19:42,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:19:42,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 15:19:42,472 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:19:42,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:19:42,473 INFO L85 PathProgramCache]: Analyzing trace with hash 359195161, now seen corresponding path program 1 times [2023-12-02 15:19:42,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:19:42,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819694185] [2023-12-02 15:19:42,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:19:42,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:19:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:19:42,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:19:42,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:19:42,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819694185] [2023-12-02 15:19:42,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819694185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:19:42,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:19:42,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:19:42,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057595240] [2023-12-02 15:19:42,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:19:42,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:19:42,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:19:42,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:19:42,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:19:42,967 INFO L87 Difference]: Start difference. First operand 201680 states and 592454 transitions. Second operand has 6 states, 5 states have (on average 22.6) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:45,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:19:45,193 INFO L93 Difference]: Finished difference Result 304090 states and 891063 transitions. [2023-12-02 15:19:45,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:19:45,193 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 6 states have internal predecessors, (113), 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 113 [2023-12-02 15:19:45,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:19:46,038 INFO L225 Difference]: With dead ends: 304090 [2023-12-02 15:19:46,038 INFO L226 Difference]: Without dead ends: 304090 [2023-12-02 15:19:46,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:19:46,039 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 674 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:19:46,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 1322 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-02 15:19:46,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304090 states. [2023-12-02 15:19:50,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304090 to 214045. [2023-12-02 15:19:51,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214045 states, 213834 states have (on average 2.934902775049805) internal successors, (627582), 214044 states have internal predecessors, (627582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:51,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214045 states to 214045 states and 627582 transitions. [2023-12-02 15:19:51,753 INFO L78 Accepts]: Start accepts. Automaton has 214045 states and 627582 transitions. Word has length 113 [2023-12-02 15:19:51,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:19:51,753 INFO L495 AbstractCegarLoop]: Abstraction has 214045 states and 627582 transitions. [2023-12-02 15:19:51,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:51,753 INFO L276 IsEmpty]: Start isEmpty. Operand 214045 states and 627582 transitions. [2023-12-02 15:19:51,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 15:19:51,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:19:51,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:19:51,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 15:19:51,757 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:19:51,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:19:51,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1384938180, now seen corresponding path program 1 times [2023-12-02 15:19:51,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:19:51,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339452030] [2023-12-02 15:19:51,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:19:51,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:19:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:19:51,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:19:51,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:19:51,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339452030] [2023-12-02 15:19:51,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339452030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:19:51,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:19:51,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:19:51,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845340900] [2023-12-02 15:19:51,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:19:51,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:19:51,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:19:51,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:19:51,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:19:51,859 INFO L87 Difference]: Start difference. First operand 214045 states and 627582 transitions. Second operand has 3 states, 2 states have (on average 60.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:53,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:19:53,396 INFO L93 Difference]: Finished difference Result 229550 states and 670510 transitions. [2023-12-02 15:19:53,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:19:53,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 60.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2023-12-02 15:19:53,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:19:54,011 INFO L225 Difference]: With dead ends: 229550 [2023-12-02 15:19:54,011 INFO L226 Difference]: Without dead ends: 229519 [2023-12-02 15:19:54,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:19:54,012 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 93 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:19:54,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 533 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:19:54,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229519 states. [2023-12-02 15:19:58,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229519 to 214911. [2023-12-02 15:19:58,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214911 states, 214701 states have (on average 2.934313300823005) internal successors, (630000), 214910 states have internal predecessors, (630000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:59,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214911 states to 214911 states and 630000 transitions. [2023-12-02 15:19:59,425 INFO L78 Accepts]: Start accepts. Automaton has 214911 states and 630000 transitions. Word has length 120 [2023-12-02 15:19:59,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:19:59,426 INFO L495 AbstractCegarLoop]: Abstraction has 214911 states and 630000 transitions. [2023-12-02 15:19:59,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 60.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:19:59,426 INFO L276 IsEmpty]: Start isEmpty. Operand 214911 states and 630000 transitions. [2023-12-02 15:19:59,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-02 15:19:59,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:19:59,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:19:59,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 15:19:59,429 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting cleanerErr5ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:19:59,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:19:59,429 INFO L85 PathProgramCache]: Analyzing trace with hash 575957224, now seen corresponding path program 1 times [2023-12-02 15:19:59,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:19:59,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782721472] [2023-12-02 15:19:59,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:19:59,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:19:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:19:59,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:19:59,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:19:59,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782721472] [2023-12-02 15:19:59,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782721472] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:19:59,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:19:59,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:19:59,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819125360] [2023-12-02 15:19:59,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:19:59,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:19:59,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:19:59,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:19:59,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:19:59,573 INFO L87 Difference]: Start difference. First operand 214911 states and 630000 transitions. Second operand has 3 states, 2 states have (on average 60.5) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:20:01,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:20:01,408 INFO L93 Difference]: Finished difference Result 220365 states and 646190 transitions. [2023-12-02 15:20:01,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:20:01,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 60.5) internal successors, (121), 3 states have internal predecessors, (121), 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 121 [2023-12-02 15:20:01,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:20:02,033 INFO L225 Difference]: With dead ends: 220365 [2023-12-02 15:20:02,033 INFO L226 Difference]: Without dead ends: 220365 [2023-12-02 15:20:02,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:20:02,034 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 91 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:20:02,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 533 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:20:02,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220365 states. [2023-12-02 15:20:06,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220365 to 217059. [2023-12-02 15:20:06,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217059 states, 216853 states have (on average 2.9346746413469034) internal successors, (636393), 217058 states have internal predecessors, (636393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:20:07,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217059 states to 217059 states and 636393 transitions. [2023-12-02 15:20:07,602 INFO L78 Accepts]: Start accepts. Automaton has 217059 states and 636393 transitions. Word has length 121 [2023-12-02 15:20:07,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:20:07,602 INFO L495 AbstractCegarLoop]: Abstraction has 217059 states and 636393 transitions. [2023-12-02 15:20:07,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 60.5) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:20:07,602 INFO L276 IsEmpty]: Start isEmpty. Operand 217059 states and 636393 transitions. [2023-12-02 15:20:07,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-02 15:20:07,607 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:20:07,607 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:20:07,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 15:20:07,607 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting cleanerErr7ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:20:07,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:20:07,607 INFO L85 PathProgramCache]: Analyzing trace with hash -740424807, now seen corresponding path program 1 times [2023-12-02 15:20:07,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:20:07,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227085139] [2023-12-02 15:20:07,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:20:07,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:20:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:20:07,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:20:07,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:20:07,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227085139] [2023-12-02 15:20:07,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227085139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:20:07,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:20:07,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:20:07,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319022915] [2023-12-02 15:20:07,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:20:07,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:20:07,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:20:07,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:20:07,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:20:07,740 INFO L87 Difference]: Start difference. First operand 217059 states and 636393 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:20:09,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:20:09,226 INFO L93 Difference]: Finished difference Result 217006 states and 636271 transitions. [2023-12-02 15:20:09,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:20:09,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 134 [2023-12-02 15:20:09,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:20:09,815 INFO L225 Difference]: With dead ends: 217006 [2023-12-02 15:20:09,815 INFO L226 Difference]: Without dead ends: 216727 [2023-12-02 15:20:09,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:20:09,816 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 122 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 15:20:09,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 1086 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 15:20:10,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216727 states. [2023-12-02 15:20:13,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216727 to 216717. [2023-12-02 15:20:14,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216717 states, 216511 states have (on average 2.9361464313591457) internal successors, (635708), 216716 states have internal predecessors, (635708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:20:15,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216717 states to 216717 states and 635708 transitions. [2023-12-02 15:20:15,186 INFO L78 Accepts]: Start accepts. Automaton has 216717 states and 635708 transitions. Word has length 134 [2023-12-02 15:20:15,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:20:15,186 INFO L495 AbstractCegarLoop]: Abstraction has 216717 states and 635708 transitions. [2023-12-02 15:20:15,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:20:15,186 INFO L276 IsEmpty]: Start isEmpty. Operand 216717 states and 635708 transitions. [2023-12-02 15:20:15,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-02 15:20:15,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:20:15,191 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:20:15,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 15:20:15,191 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:20:15,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:20:15,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1560621541, now seen corresponding path program 1 times [2023-12-02 15:20:15,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:20:15,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475435832] [2023-12-02 15:20:15,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:20:15,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:20:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:20:15,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:20:15,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:20:15,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475435832] [2023-12-02 15:20:15,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475435832] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:20:15,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:20:15,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:20:15,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850371086] [2023-12-02 15:20:15,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:20:15,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:20:15,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:20:15,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:20:15,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:20:15,248 INFO L87 Difference]: Start difference. First operand 216717 states and 635708 transitions. Second operand has 3 states, 2 states have (on average 66.5) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:20:16,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:20:16,675 INFO L93 Difference]: Finished difference Result 224101 states and 657449 transitions. [2023-12-02 15:20:16,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:20:16,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 66.5) internal successors, (133), 3 states have internal predecessors, (133), 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 135 [2023-12-02 15:20:16,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:20:17,301 INFO L225 Difference]: With dead ends: 224101 [2023-12-02 15:20:17,302 INFO L226 Difference]: Without dead ends: 224101 [2023-12-02 15:20:17,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:20:17,302 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 113 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:20:17,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 639 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:20:17,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224101 states. [2023-12-02 15:20:21,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224101 to 218985. [2023-12-02 15:20:21,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218985 states, 218782 states have (on average 2.936178479033924) internal successors, (642383), 218984 states have internal predecessors, (642383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:20:22,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218985 states to 218985 states and 642383 transitions. [2023-12-02 15:20:22,213 INFO L78 Accepts]: Start accepts. Automaton has 218985 states and 642383 transitions. Word has length 135 [2023-12-02 15:20:22,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:20:22,213 INFO L495 AbstractCegarLoop]: Abstraction has 218985 states and 642383 transitions. [2023-12-02 15:20:22,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 66.5) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:20:22,213 INFO L276 IsEmpty]: Start isEmpty. Operand 218985 states and 642383 transitions. [2023-12-02 15:20:22,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-02 15:20:22,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:20:22,220 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:20:22,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 15:20:22,221 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:20:22,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:20:22,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1970233186, now seen corresponding path program 1 times [2023-12-02 15:20:22,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:20:22,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262269977] [2023-12-02 15:20:22,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:20:22,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:20:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:20:22,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:20:22,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:20:22,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262269977] [2023-12-02 15:20:22,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262269977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:20:22,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:20:22,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:20:22,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392245070] [2023-12-02 15:20:22,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:20:22,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:20:22,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:20:22,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:20:22,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:20:22,384 INFO L87 Difference]: Start difference. First operand 218985 states and 642383 transitions. Second operand has 3 states, 2 states have (on average 69.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:20:24,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:20:24,145 INFO L93 Difference]: Finished difference Result 228991 states and 672379 transitions. [2023-12-02 15:20:24,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:20:24,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 69.0) internal successors, (138), 3 states have internal predecessors, (138), 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 140 [2023-12-02 15:20:24,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:20:24,764 INFO L225 Difference]: With dead ends: 228991 [2023-12-02 15:20:24,764 INFO L226 Difference]: Without dead ends: 228991 [2023-12-02 15:20:24,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:20:24,765 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 126 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 15:20:24,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 563 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 15:20:25,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228991 states. [2023-12-02 15:20:28,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228991 to 222480. [2023-12-02 15:20:29,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222480 states, 222290 states have (on average 2.936879751675739) internal successors, (652839), 222479 states have internal predecessors, (652839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:20:30,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222480 states to 222480 states and 652839 transitions. [2023-12-02 15:20:30,289 INFO L78 Accepts]: Start accepts. Automaton has 222480 states and 652839 transitions. Word has length 140 [2023-12-02 15:20:30,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:20:30,289 INFO L495 AbstractCegarLoop]: Abstraction has 222480 states and 652839 transitions. [2023-12-02 15:20:30,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 69.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:20:30,289 INFO L276 IsEmpty]: Start isEmpty. Operand 222480 states and 652839 transitions. [2023-12-02 15:20:30,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-02 15:20:30,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:20:30,296 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:20:30,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-02 15:20:30,297 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting cleanerErr5ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:20:30,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:20:30,297 INFO L85 PathProgramCache]: Analyzing trace with hash -159208034, now seen corresponding path program 1 times [2023-12-02 15:20:30,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:20:30,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799427304] [2023-12-02 15:20:30,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:20:30,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:20:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:20:31,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:20:31,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:20:31,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799427304] [2023-12-02 15:20:31,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799427304] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:20:31,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:20:31,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-02 15:20:31,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50934235] [2023-12-02 15:20:31,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:20:31,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-02 15:20:31,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:20:31,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-02 15:20:31,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2023-12-02 15:20:31,188 INFO L87 Difference]: Start difference. First operand 222480 states and 652839 transitions. Second operand has 17 states, 16 states have (on average 8.9375) internal successors, (143), 17 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:20:36,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:20:36,703 INFO L93 Difference]: Finished difference Result 570564 states and 1674679 transitions. [2023-12-02 15:20:36,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-02 15:20:36,703 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 8.9375) internal successors, (143), 17 states have internal predecessors, (143), 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 145 [2023-12-02 15:20:36,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:20:38,894 INFO L225 Difference]: With dead ends: 570564 [2023-12-02 15:20:38,894 INFO L226 Difference]: Without dead ends: 570564 [2023-12-02 15:20:38,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=500, Invalid=1480, Unknown=0, NotChecked=0, Total=1980 [2023-12-02 15:20:38,895 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 3711 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 2627 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3711 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 2674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-02 15:20:38,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3711 Valid, 3250 Invalid, 2674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2627 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-02 15:20:40,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570564 states. [2023-12-02 15:20:48,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570564 to 363424. [2023-12-02 15:20:48,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363424 states, 363234 states have (on average 3.012774134579913) internal successors, (1094342), 363423 states have internal predecessors, (1094342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:20:50,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363424 states to 363424 states and 1094342 transitions. [2023-12-02 15:20:50,236 INFO L78 Accepts]: Start accepts. Automaton has 363424 states and 1094342 transitions. Word has length 145 [2023-12-02 15:20:50,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:20:50,236 INFO L495 AbstractCegarLoop]: Abstraction has 363424 states and 1094342 transitions. [2023-12-02 15:20:50,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 8.9375) internal successors, (143), 17 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:20:50,237 INFO L276 IsEmpty]: Start isEmpty. Operand 363424 states and 1094342 transitions. [2023-12-02 15:20:50,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-02 15:20:50,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:20:50,245 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:20:50,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 15:20:50,246 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:20:50,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:20:50,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1654282584, now seen corresponding path program 1 times [2023-12-02 15:20:50,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:20:50,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054980466] [2023-12-02 15:20:50,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:20:50,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:20:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:20:51,434 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:20:51,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:20:51,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054980466] [2023-12-02 15:20:51,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054980466] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:20:51,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:20:51,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-02 15:20:51,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301233104] [2023-12-02 15:20:51,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:20:51,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 15:20:51,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:20:51,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 15:20:51,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2023-12-02 15:20:51,436 INFO L87 Difference]: Start difference. First operand 363424 states and 1094342 transitions. Second operand has 19 states, 18 states have (on average 8.11111111111111) internal successors, (146), 19 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:21:02,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:21:02,067 INFO L93 Difference]: Finished difference Result 974986 states and 2912555 transitions. [2023-12-02 15:21:02,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-02 15:21:02,068 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 8.11111111111111) internal successors, (146), 19 states have internal predecessors, (146), 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 148 [2023-12-02 15:21:02,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:21:05,935 INFO L225 Difference]: With dead ends: 974986 [2023-12-02 15:21:05,935 INFO L226 Difference]: Without dead ends: 974986 [2023-12-02 15:21:05,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1821 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1349, Invalid=3907, Unknown=0, NotChecked=0, Total=5256 [2023-12-02 15:21:05,938 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 6255 mSDsluCounter, 3737 mSDsCounter, 0 mSdLazyCounter, 3894 mSolverCounterSat, 926 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6255 SdHoareTripleChecker+Valid, 4186 SdHoareTripleChecker+Invalid, 4820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 926 IncrementalHoareTripleChecker+Valid, 3894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:21:05,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6255 Valid, 4186 Invalid, 4820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [926 Valid, 3894 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-02 15:21:07,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974986 states. [2023-12-02 15:21:20,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974986 to 518437. [2023-12-02 15:21:21,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518437 states, 518247 states have (on average 3.027264991403713) internal successors, (1568871), 518436 states have internal predecessors, (1568871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:21:23,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518437 states to 518437 states and 1568871 transitions. [2023-12-02 15:21:23,850 INFO L78 Accepts]: Start accepts. Automaton has 518437 states and 1568871 transitions. Word has length 148 [2023-12-02 15:21:23,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:21:23,850 INFO L495 AbstractCegarLoop]: Abstraction has 518437 states and 1568871 transitions. [2023-12-02 15:21:23,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 8.11111111111111) internal successors, (146), 19 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:21:23,850 INFO L276 IsEmpty]: Start isEmpty. Operand 518437 states and 1568871 transitions. [2023-12-02 15:21:23,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-02 15:21:23,860 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:21:23,860 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:21:23,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 15:21:23,860 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:21:23,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:21:23,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1284876185, now seen corresponding path program 1 times [2023-12-02 15:21:23,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:21:23,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147646439] [2023-12-02 15:21:23,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:21:23,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:21:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:21:24,331 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:21:24,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:21:24,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147646439] [2023-12-02 15:21:24,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147646439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:21:24,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:21:24,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 15:21:24,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735635307] [2023-12-02 15:21:24,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:21:24,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 15:21:24,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:21:24,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 15:21:24,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-02 15:21:24,333 INFO L87 Difference]: Start difference. First operand 518437 states and 1568871 transitions. Second operand has 9 states, 8 states have (on average 18.25) internal successors, (146), 9 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:21:28,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:21:28,021 INFO L93 Difference]: Finished difference Result 536084 states and 1623124 transitions. [2023-12-02 15:21:28,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 15:21:28,021 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.25) internal successors, (146), 9 states have internal predecessors, (146), 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 148 [2023-12-02 15:21:28,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:21:30,161 INFO L225 Difference]: With dead ends: 536084 [2023-12-02 15:21:30,161 INFO L226 Difference]: Without dead ends: 536084 [2023-12-02 15:21:30,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-02 15:21:30,161 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1601 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:21:30,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 1189 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 15:21:30,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536084 states. [2023-12-02 15:21:40,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536084 to 518021. [2023-12-02 15:21:40,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518021 states, 517839 states have (on average 3.0264367882681684) internal successors, (1567207), 518020 states have internal predecessors, (1567207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:21:44,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518021 states to 518021 states and 1567207 transitions. [2023-12-02 15:21:44,135 INFO L78 Accepts]: Start accepts. Automaton has 518021 states and 1567207 transitions. Word has length 148 [2023-12-02 15:21:44,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:21:44,136 INFO L495 AbstractCegarLoop]: Abstraction has 518021 states and 1567207 transitions. [2023-12-02 15:21:44,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.25) internal successors, (146), 9 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:21:44,136 INFO L276 IsEmpty]: Start isEmpty. Operand 518021 states and 1567207 transitions. [2023-12-02 15:21:44,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-02 15:21:44,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:21:44,145 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:21:44,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-02 15:21:44,146 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:21:44,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:21:44,146 INFO L85 PathProgramCache]: Analyzing trace with hash -615743532, now seen corresponding path program 2 times [2023-12-02 15:21:44,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:21:44,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663762709] [2023-12-02 15:21:44,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:21:44,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:21:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:21:45,517 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:21:45,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:21:45,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663762709] [2023-12-02 15:21:45,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663762709] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:21:45,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:21:45,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-02 15:21:45,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820649889] [2023-12-02 15:21:45,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:21:45,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 15:21:45,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:21:45,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 15:21:45,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2023-12-02 15:21:45,520 INFO L87 Difference]: Start difference. First operand 518021 states and 1567207 transitions. Second operand has 19 states, 18 states have (on average 8.11111111111111) internal successors, (146), 19 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:21:57,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:21:57,451 INFO L93 Difference]: Finished difference Result 1102594 states and 3302948 transitions. [2023-12-02 15:21:57,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-12-02 15:21:57,452 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 8.11111111111111) internal successors, (146), 19 states have internal predecessors, (146), 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 148 [2023-12-02 15:21:57,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:22:01,648 INFO L225 Difference]: With dead ends: 1102594 [2023-12-02 15:22:01,648 INFO L226 Difference]: Without dead ends: 1102594 [2023-12-02 15:22:01,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1806 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1314, Invalid=4088, Unknown=0, NotChecked=0, Total=5402 [2023-12-02 15:22:01,650 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 6314 mSDsluCounter, 3858 mSDsCounter, 0 mSdLazyCounter, 4232 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6314 SdHoareTripleChecker+Valid, 4322 SdHoareTripleChecker+Invalid, 4855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 4232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-02 15:22:01,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6314 Valid, 4322 Invalid, 4855 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [623 Valid, 4232 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-02 15:22:03,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102594 states. [2023-12-02 15:22:16,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102594 to 517994. [2023-12-02 15:22:17,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517994 states, 517812 states have (on average 3.0264729283987237) internal successors, (1567144), 517993 states have internal predecessors, (1567144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:22:19,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517994 states to 517994 states and 1567144 transitions. [2023-12-02 15:22:19,875 INFO L78 Accepts]: Start accepts. Automaton has 517994 states and 1567144 transitions. Word has length 148 [2023-12-02 15:22:19,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:22:19,875 INFO L495 AbstractCegarLoop]: Abstraction has 517994 states and 1567144 transitions. [2023-12-02 15:22:19,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 8.11111111111111) internal successors, (146), 19 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:22:19,876 INFO L276 IsEmpty]: Start isEmpty. Operand 517994 states and 1567144 transitions. [2023-12-02 15:22:19,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-02 15:22:19,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:22:19,886 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:22:19,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-02 15:22:19,886 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:22:19,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:22:19,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1225354642, now seen corresponding path program 3 times [2023-12-02 15:22:19,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:22:19,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654069802] [2023-12-02 15:22:19,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:22:19,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:22:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:22:21,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:22:21,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:22:21,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654069802] [2023-12-02 15:22:21,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654069802] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:22:21,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:22:21,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-02 15:22:21,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521392063] [2023-12-02 15:22:21,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:22:21,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 15:22:21,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:22:21,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 15:22:21,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2023-12-02 15:22:21,298 INFO L87 Difference]: Start difference. First operand 517994 states and 1567144 transitions. Second operand has 19 states, 18 states have (on average 8.11111111111111) internal successors, (146), 19 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:22:30,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:22:30,663 INFO L93 Difference]: Finished difference Result 817350 states and 2413339 transitions. [2023-12-02 15:22:30,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-02 15:22:30,663 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 8.11111111111111) internal successors, (146), 19 states have internal predecessors, (146), 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 148 [2023-12-02 15:22:30,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:22:34,092 INFO L225 Difference]: With dead ends: 817350 [2023-12-02 15:22:34,092 INFO L226 Difference]: Without dead ends: 817350 [2023-12-02 15:22:34,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1408 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1070, Invalid=3220, Unknown=0, NotChecked=0, Total=4290 [2023-12-02 15:22:34,094 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 5696 mSDsluCounter, 3796 mSDsCounter, 0 mSdLazyCounter, 3897 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5696 SdHoareTripleChecker+Valid, 4264 SdHoareTripleChecker+Invalid, 4415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 3897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:22:34,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5696 Valid, 4264 Invalid, 4415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 3897 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-02 15:22:35,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817350 states. [2023-12-02 15:22:44,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817350 to 377278. [2023-12-02 15:22:45,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377278 states, 377096 states have (on average 2.9871067314423914) internal successors, (1126426), 377277 states have internal predecessors, (1126426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:22:46,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377278 states to 377278 states and 1126426 transitions. [2023-12-02 15:22:46,882 INFO L78 Accepts]: Start accepts. Automaton has 377278 states and 1126426 transitions. Word has length 148 [2023-12-02 15:22:46,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:22:46,883 INFO L495 AbstractCegarLoop]: Abstraction has 377278 states and 1126426 transitions. [2023-12-02 15:22:46,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 8.11111111111111) internal successors, (146), 19 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:22:46,883 INFO L276 IsEmpty]: Start isEmpty. Operand 377278 states and 1126426 transitions. [2023-12-02 15:22:46,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-02 15:22:46,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:22:46,893 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:22:46,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-02 15:22:46,893 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting cleanerErr7ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:22:46,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:22:46,893 INFO L85 PathProgramCache]: Analyzing trace with hash -333056327, now seen corresponding path program 1 times [2023-12-02 15:22:46,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:22:46,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147342878] [2023-12-02 15:22:46,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:22:46,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:22:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:22:47,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:22:47,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:22:47,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147342878] [2023-12-02 15:22:47,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147342878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:22:47,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:22:47,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:22:47,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088652793] [2023-12-02 15:22:47,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:22:47,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:22:47,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:22:47,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:22:47,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:22:47,237 INFO L87 Difference]: Start difference. First operand 377278 states and 1126426 transitions. Second operand has 6 states, 5 states have (on average 29.2) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:22:50,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:22:50,400 INFO L93 Difference]: Finished difference Result 386270 states and 1151011 transitions. [2023-12-02 15:22:50,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:22:50,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 29.2) internal successors, (146), 6 states have internal predecessors, (146), 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 148 [2023-12-02 15:22:50,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:22:51,721 INFO L225 Difference]: With dead ends: 386270 [2023-12-02 15:22:51,721 INFO L226 Difference]: Without dead ends: 385473 [2023-12-02 15:22:51,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:22:51,722 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 364 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:22:51,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1159 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 15:22:52,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385473 states. [2023-12-02 15:22:59,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385473 to 381238. [2023-12-02 15:22:59,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381238 states, 381079 states have (on average 2.9878319193658007) internal successors, (1138600), 381237 states have internal predecessors, (1138600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:01,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381238 states to 381238 states and 1138600 transitions. [2023-12-02 15:23:01,356 INFO L78 Accepts]: Start accepts. Automaton has 381238 states and 1138600 transitions. Word has length 148 [2023-12-02 15:23:01,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:23:01,356 INFO L495 AbstractCegarLoop]: Abstraction has 381238 states and 1138600 transitions. [2023-12-02 15:23:01,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.2) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:01,357 INFO L276 IsEmpty]: Start isEmpty. Operand 381238 states and 1138600 transitions. [2023-12-02 15:23:01,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-02 15:23:01,368 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:23:01,369 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:23:01,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-02 15:23:01,369 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting cleanerErr1ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:23:01,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:23:01,370 INFO L85 PathProgramCache]: Analyzing trace with hash -506710470, now seen corresponding path program 1 times [2023-12-02 15:23:01,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:23:01,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667090917] [2023-12-02 15:23:01,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:23:01,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:23:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:23:01,701 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:23:01,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:23:01,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667090917] [2023-12-02 15:23:01,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667090917] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:23:01,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:23:01,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 15:23:01,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754591473] [2023-12-02 15:23:01,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:23:01,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 15:23:01,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:23:01,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 15:23:01,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-02 15:23:01,703 INFO L87 Difference]: Start difference. First operand 381238 states and 1138600 transitions. Second operand has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:04,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:23:04,060 INFO L93 Difference]: Finished difference Result 375970 states and 1121715 transitions. [2023-12-02 15:23:04,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 15:23:04,061 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 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 151 [2023-12-02 15:23:04,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:23:05,613 INFO L225 Difference]: With dead ends: 375970 [2023-12-02 15:23:05,613 INFO L226 Difference]: Without dead ends: 375970 [2023-12-02 15:23:05,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-02 15:23:05,613 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1157 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:23:05,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 760 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 15:23:06,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375970 states. [2023-12-02 15:23:12,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375970 to 352309. [2023-12-02 15:23:13,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352309 states, 352206 states have (on average 2.984111571069204) internal successors, (1051022), 352308 states have internal predecessors, (1051022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:14,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352309 states to 352309 states and 1051022 transitions. [2023-12-02 15:23:14,146 INFO L78 Accepts]: Start accepts. Automaton has 352309 states and 1051022 transitions. Word has length 151 [2023-12-02 15:23:14,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:23:14,146 INFO L495 AbstractCegarLoop]: Abstraction has 352309 states and 1051022 transitions. [2023-12-02 15:23:14,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:14,146 INFO L276 IsEmpty]: Start isEmpty. Operand 352309 states and 1051022 transitions. [2023-12-02 15:23:14,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-02 15:23:14,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:23:14,162 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:23:14,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-02 15:23:14,162 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting cleanerErr5ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:23:14,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:23:14,163 INFO L85 PathProgramCache]: Analyzing trace with hash 194483568, now seen corresponding path program 1 times [2023-12-02 15:23:14,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:23:14,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363281528] [2023-12-02 15:23:14,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:23:14,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:23:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:23:15,603 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:23:15,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:23:15,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363281528] [2023-12-02 15:23:15,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363281528] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:23:15,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:23:15,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-02 15:23:15,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608580424] [2023-12-02 15:23:15,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:23:15,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 15:23:15,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:23:15,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 15:23:15,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2023-12-02 15:23:15,605 INFO L87 Difference]: Start difference. First operand 352309 states and 1051022 transitions. Second operand has 14 states, 14 states have (on average 10.928571428571429) internal successors, (153), 14 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:18,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:23:18,416 INFO L93 Difference]: Finished difference Result 325621 states and 953505 transitions. [2023-12-02 15:23:18,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 15:23:18,416 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.928571428571429) internal successors, (153), 14 states have internal predecessors, (153), 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 155 [2023-12-02 15:23:18,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:23:19,668 INFO L225 Difference]: With dead ends: 325621 [2023-12-02 15:23:19,668 INFO L226 Difference]: Without dead ends: 324746 [2023-12-02 15:23:19,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=192, Invalid=510, Unknown=0, NotChecked=0, Total=702 [2023-12-02 15:23:19,669 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 1983 mSDsluCounter, 1649 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1983 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:23:19,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1983 Valid, 1910 Invalid, 1475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-02 15:23:20,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324746 states. [2023-12-02 15:23:24,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324746 to 205421. [2023-12-02 15:23:24,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205421 states, 205318 states have (on average 2.9422554281650903) internal successors, (604098), 205420 states have internal predecessors, (604098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:25,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205421 states to 205421 states and 604098 transitions. [2023-12-02 15:23:25,040 INFO L78 Accepts]: Start accepts. Automaton has 205421 states and 604098 transitions. Word has length 155 [2023-12-02 15:23:25,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:23:25,041 INFO L495 AbstractCegarLoop]: Abstraction has 205421 states and 604098 transitions. [2023-12-02 15:23:25,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.928571428571429) internal successors, (153), 14 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:25,041 INFO L276 IsEmpty]: Start isEmpty. Operand 205421 states and 604098 transitions. [2023-12-02 15:23:25,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-02 15:23:25,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:23:25,055 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:23:25,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-02 15:23:25,055 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting cleanerErr5ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:23:25,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:23:25,056 INFO L85 PathProgramCache]: Analyzing trace with hash 756511804, now seen corresponding path program 2 times [2023-12-02 15:23:25,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:23:25,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736081623] [2023-12-02 15:23:25,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:23:25,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:23:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:23:25,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:23:25,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:23:25,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736081623] [2023-12-02 15:23:25,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736081623] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:23:25,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:23:25,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 15:23:25,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493303326] [2023-12-02 15:23:25,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:23:25,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 15:23:25,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:23:25,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 15:23:25,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-02 15:23:25,295 INFO L87 Difference]: Start difference. First operand 205421 states and 604098 transitions. Second operand has 9 states, 8 states have (on average 19.125) internal successors, (153), 9 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:27,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:23:27,179 INFO L93 Difference]: Finished difference Result 209264 states and 615449 transitions. [2023-12-02 15:23:27,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 15:23:27,179 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 19.125) internal successors, (153), 9 states have internal predecessors, (153), 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 155 [2023-12-02 15:23:27,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:23:27,736 INFO L225 Difference]: With dead ends: 209264 [2023-12-02 15:23:27,736 INFO L226 Difference]: Without dead ends: 209264 [2023-12-02 15:23:27,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-12-02 15:23:27,737 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 976 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:23:27,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 1261 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 15:23:28,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209264 states. [2023-12-02 15:23:31,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209264 to 205181. [2023-12-02 15:23:31,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205181 states, 205078 states have (on average 2.942187850476404) internal successors, (603378), 205180 states have internal predecessors, (603378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:32,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205181 states to 205181 states and 603378 transitions. [2023-12-02 15:23:32,490 INFO L78 Accepts]: Start accepts. Automaton has 205181 states and 603378 transitions. Word has length 155 [2023-12-02 15:23:32,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:23:32,491 INFO L495 AbstractCegarLoop]: Abstraction has 205181 states and 603378 transitions. [2023-12-02 15:23:32,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 19.125) internal successors, (153), 9 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:32,491 INFO L276 IsEmpty]: Start isEmpty. Operand 205181 states and 603378 transitions. [2023-12-02 15:23:32,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-02 15:23:32,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:23:32,950 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:23:32,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-02 15:23:32,951 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:23:32,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:23:32,951 INFO L85 PathProgramCache]: Analyzing trace with hash 2042685156, now seen corresponding path program 1 times [2023-12-02 15:23:32,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:23:32,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498667103] [2023-12-02 15:23:32,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:23:32,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:23:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:23:33,203 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:23:33,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:23:33,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498667103] [2023-12-02 15:23:33,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498667103] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:23:33,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471339386] [2023-12-02 15:23:33,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:23:33,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:23:33,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:23:33,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:23:33,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:23:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:23:33,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 15:23:33,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:23:33,604 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:23:33,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:23:33,718 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:23:33,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471339386] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:23:33,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [336720144] [2023-12-02 15:23:33,726 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 15:23:33,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:23:33,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2023-12-02 15:23:33,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944815958] [2023-12-02 15:23:33,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 15:23:33,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-02 15:23:33,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:23:33,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-02 15:23:33,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-02 15:23:33,730 INFO L87 Difference]: Start difference. First operand 205181 states and 603378 transitions. Second operand has 16 states, 16 states have (on average 14.8125) internal successors, (237), 16 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:35,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:23:35,616 INFO L93 Difference]: Finished difference Result 328432 states and 965759 transitions. [2023-12-02 15:23:35,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 15:23:35,616 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.8125) internal successors, (237), 16 states have internal predecessors, (237), 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 155 [2023-12-02 15:23:35,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:23:36,901 INFO L225 Difference]: With dead ends: 328432 [2023-12-02 15:23:36,901 INFO L226 Difference]: Without dead ends: 328124 [2023-12-02 15:23:36,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 299 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-12-02 15:23:36,902 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 1399 mSDsluCounter, 3665 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1399 SdHoareTripleChecker+Valid, 4162 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:23:36,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1399 Valid, 4162 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:23:37,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328124 states. [2023-12-02 15:23:42,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328124 to 251008. [2023-12-02 15:23:42,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251008 states, 250905 states have (on average 2.9419979673581635) internal successors, (738162), 251007 states have internal predecessors, (738162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:43,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251008 states to 251008 states and 738162 transitions. [2023-12-02 15:23:43,565 INFO L78 Accepts]: Start accepts. Automaton has 251008 states and 738162 transitions. Word has length 155 [2023-12-02 15:23:43,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:23:43,565 INFO L495 AbstractCegarLoop]: Abstraction has 251008 states and 738162 transitions. [2023-12-02 15:23:43,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.8125) internal successors, (237), 16 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:43,566 INFO L276 IsEmpty]: Start isEmpty. Operand 251008 states and 738162 transitions. [2023-12-02 15:23:43,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-02 15:23:43,583 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:23:43,583 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:23:43,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:23:43,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d22d014-23d0-4815-8fbd-d62df9b6f139/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-12-02 15:23:43,784 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting cleanerErr3ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:23:43,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:23:43,785 INFO L85 PathProgramCache]: Analyzing trace with hash 137247679, now seen corresponding path program 1 times [2023-12-02 15:23:43,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:23:43,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843078497] [2023-12-02 15:23:43,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:23:43,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:23:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:23:45,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:23:45,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:23:45,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843078497] [2023-12-02 15:23:45,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843078497] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:23:45,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:23:45,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2023-12-02 15:23:45,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334144871] [2023-12-02 15:23:45,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:23:45,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 15:23:45,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:23:45,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 15:23:45,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2023-12-02 15:23:45,631 INFO L87 Difference]: Start difference. First operand 251008 states and 738162 transitions. Second operand has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:50,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:23:50,009 INFO L93 Difference]: Finished difference Result 271666 states and 798188 transitions. [2023-12-02 15:23:50,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-02 15:23:50,010 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 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 159 [2023-12-02 15:23:50,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:23:50,734 INFO L225 Difference]: With dead ends: 271666 [2023-12-02 15:23:50,734 INFO L226 Difference]: Without dead ends: 271666 [2023-12-02 15:23:50,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=553, Invalid=2309, Unknown=0, NotChecked=0, Total=2862 [2023-12-02 15:23:50,736 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 1260 mSDsluCounter, 4371 mSDsCounter, 0 mSdLazyCounter, 3777 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 4715 SdHoareTripleChecker+Invalid, 3807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 3777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:23:50,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 4715 Invalid, 3807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 3777 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-02 15:23:51,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271666 states. [2023-12-02 15:23:55,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271666 to 259888. [2023-12-02 15:23:55,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259888 states, 259785 states have (on average 2.9385453355659488) internal successors, (763390), 259887 states have internal predecessors, (763390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:56,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259888 states to 259888 states and 763390 transitions. [2023-12-02 15:23:56,664 INFO L78 Accepts]: Start accepts. Automaton has 259888 states and 763390 transitions. Word has length 159 [2023-12-02 15:23:56,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:23:56,665 INFO L495 AbstractCegarLoop]: Abstraction has 259888 states and 763390 transitions. [2023-12-02 15:23:56,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:56,665 INFO L276 IsEmpty]: Start isEmpty. Operand 259888 states and 763390 transitions. [2023-12-02 15:23:56,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-02 15:23:56,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:23:56,687 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:23:56,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-02 15:23:56,688 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting cleanerErr3ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:23:56,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:23:56,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1571561867, now seen corresponding path program 2 times [2023-12-02 15:23:56,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:23:56,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247401274] [2023-12-02 15:23:56,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:23:56,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:23:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:23:58,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:23:58,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:23:58,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247401274] [2023-12-02 15:23:58,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247401274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:23:58,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:23:58,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2023-12-02 15:23:58,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207497366] [2023-12-02 15:23:58,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:23:58,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 15:23:58,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:23:58,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 15:23:58,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2023-12-02 15:23:58,954 INFO L87 Difference]: Start difference. First operand 259888 states and 763390 transitions. Second operand has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:24:04,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:24:04,555 INFO L93 Difference]: Finished difference Result 322528 states and 948585 transitions. [2023-12-02 15:24:04,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-02 15:24:04,555 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 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 159 [2023-12-02 15:24:04,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:24:05,705 INFO L225 Difference]: With dead ends: 322528 [2023-12-02 15:24:05,705 INFO L226 Difference]: Without dead ends: 320344 [2023-12-02 15:24:05,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1321 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=780, Invalid=3912, Unknown=0, NotChecked=0, Total=4692 [2023-12-02 15:24:05,707 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2384 mSDsluCounter, 5892 mSDsCounter, 0 mSdLazyCounter, 4548 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 6417 SdHoareTripleChecker+Invalid, 4606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 4548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-02 15:24:05,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 6417 Invalid, 4606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 4548 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-02 15:24:06,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320344 states. [2023-12-02 15:24:10,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320344 to 275590. [2023-12-02 15:24:11,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275590 states, 275479 states have (on average 2.934194621005594) internal successors, (808309), 275589 states have internal predecessors, (808309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:24:12,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275590 states to 275590 states and 808309 transitions. [2023-12-02 15:24:12,289 INFO L78 Accepts]: Start accepts. Automaton has 275590 states and 808309 transitions. Word has length 159 [2023-12-02 15:24:12,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:24:12,289 INFO L495 AbstractCegarLoop]: Abstraction has 275590 states and 808309 transitions. [2023-12-02 15:24:12,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:24:12,289 INFO L276 IsEmpty]: Start isEmpty. Operand 275590 states and 808309 transitions. [2023-12-02 15:24:12,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-02 15:24:12,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:24:12,321 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:24:12,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-02 15:24:12,321 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting cleanerErr3ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:24:12,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:24:12,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1346749945, now seen corresponding path program 3 times [2023-12-02 15:24:12,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:24:12,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786659001] [2023-12-02 15:24:12,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:24:12,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:24:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:24:14,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:24:14,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:24:14,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786659001] [2023-12-02 15:24:14,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786659001] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:24:14,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:24:14,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2023-12-02 15:24:14,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269709877] [2023-12-02 15:24:14,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:24:14,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 15:24:14,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:24:14,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 15:24:14,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2023-12-02 15:24:14,374 INFO L87 Difference]: Start difference. First operand 275590 states and 808309 transitions. Second operand has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:24:20,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:24:20,850 INFO L93 Difference]: Finished difference Result 300651 states and 881058 transitions. [2023-12-02 15:24:20,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-12-02 15:24:20,851 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 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 159 [2023-12-02 15:24:20,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:24:21,642 INFO L225 Difference]: With dead ends: 300651 [2023-12-02 15:24:21,642 INFO L226 Difference]: Without dead ends: 300651 [2023-12-02 15:24:21,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1668 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=962, Invalid=4738, Unknown=0, NotChecked=0, Total=5700 [2023-12-02 15:24:21,644 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 2000 mSDsluCounter, 7082 mSDsCounter, 0 mSdLazyCounter, 5937 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 7697 SdHoareTripleChecker+Invalid, 5983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 5937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:24:21,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2000 Valid, 7697 Invalid, 5983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 5937 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-02 15:24:22,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300651 states. [2023-12-02 15:24:26,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300651 to 289996. [2023-12-02 15:24:27,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289996 states, 289881 states have (on average 2.9316443644116035) internal successors, (849828), 289995 states have internal predecessors, (849828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:24:28,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289996 states to 289996 states and 849828 transitions. [2023-12-02 15:24:28,596 INFO L78 Accepts]: Start accepts. Automaton has 289996 states and 849828 transitions. Word has length 159 [2023-12-02 15:24:28,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:24:28,596 INFO L495 AbstractCegarLoop]: Abstraction has 289996 states and 849828 transitions. [2023-12-02 15:24:28,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:24:28,597 INFO L276 IsEmpty]: Start isEmpty. Operand 289996 states and 849828 transitions. [2023-12-02 15:24:28,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-02 15:24:28,631 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:24:28,631 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:24:28,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-02 15:24:28,632 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting cleanerErr3ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:24:28,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:24:28,632 INFO L85 PathProgramCache]: Analyzing trace with hash 571123193, now seen corresponding path program 4 times [2023-12-02 15:24:28,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:24:28,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876496517] [2023-12-02 15:24:28,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:24:28,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:24:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:24:30,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:24:30,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:24:30,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876496517] [2023-12-02 15:24:30,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876496517] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:24:30,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:24:30,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2023-12-02 15:24:30,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019368401] [2023-12-02 15:24:30,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:24:30,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 15:24:30,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:24:30,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 15:24:30,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2023-12-02 15:24:30,423 INFO L87 Difference]: Start difference. First operand 289996 states and 849828 transitions. Second operand has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:24:35,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:24:35,544 INFO L93 Difference]: Finished difference Result 321277 states and 939341 transitions. [2023-12-02 15:24:35,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-02 15:24:35,544 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 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 159 [2023-12-02 15:24:35,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:24:36,741 INFO L225 Difference]: With dead ends: 321277 [2023-12-02 15:24:36,741 INFO L226 Difference]: Without dead ends: 319093 [2023-12-02 15:24:36,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=623, Invalid=3037, Unknown=0, NotChecked=0, Total=3660 [2023-12-02 15:24:36,743 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 2647 mSDsluCounter, 4889 mSDsCounter, 0 mSdLazyCounter, 4463 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2647 SdHoareTripleChecker+Valid, 5374 SdHoareTripleChecker+Invalid, 4505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 4463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-02 15:24:36,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2647 Valid, 5374 Invalid, 4505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 4463 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-02 15:24:37,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319093 states. [2023-12-02 15:24:42,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319093 to 289996. [2023-12-02 15:24:42,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289996 states, 289881 states have (on average 2.9316443644116035) internal successors, (849828), 289995 states have internal predecessors, (849828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:24:43,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289996 states to 289996 states and 849828 transitions. [2023-12-02 15:24:43,369 INFO L78 Accepts]: Start accepts. Automaton has 289996 states and 849828 transitions. Word has length 159 [2023-12-02 15:24:43,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:24:43,369 INFO L495 AbstractCegarLoop]: Abstraction has 289996 states and 849828 transitions. [2023-12-02 15:24:43,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:24:43,369 INFO L276 IsEmpty]: Start isEmpty. Operand 289996 states and 849828 transitions. [2023-12-02 15:24:43,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-02 15:24:43,395 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:24:43,396 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:24:43,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-02 15:24:43,396 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting cleanerErr3ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-12-02 15:24:43,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:24:43,396 INFO L85 PathProgramCache]: Analyzing trace with hash 687649009, now seen corresponding path program 5 times [2023-12-02 15:24:43,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:24:43,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442909253] [2023-12-02 15:24:43,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:24:43,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:24:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:24:45,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:24:45,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:24:45,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442909253] [2023-12-02 15:24:45,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442909253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:24:45,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:24:45,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2023-12-02 15:24:45,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101220411] [2023-12-02 15:24:45,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:24:45,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 15:24:45,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:24:45,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 15:24:45,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2023-12-02 15:24:45,485 INFO L87 Difference]: Start difference. First operand 289996 states and 849828 transitions. Second operand has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:24:51,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:24:51,427 INFO L93 Difference]: Finished difference Result 336418 states and 984187 transitions. [2023-12-02 15:24:51,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-02 15:24:51,427 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 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 159 [2023-12-02 15:24:51,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:24:52,672 INFO L225 Difference]: With dead ends: 336418 [2023-12-02 15:24:52,672 INFO L226 Difference]: Without dead ends: 334234 [2023-12-02 15:24:52,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 957 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=647, Invalid=3259, Unknown=0, NotChecked=0, Total=3906 [2023-12-02 15:24:52,673 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 1814 mSDsluCounter, 6799 mSDsCounter, 0 mSdLazyCounter, 5671 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1814 SdHoareTripleChecker+Valid, 7296 SdHoareTripleChecker+Invalid, 5706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 5671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:24:52,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1814 Valid, 7296 Invalid, 5706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 5671 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-02 15:24:53,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334234 states.