./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stack-1.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_c86b9d0b-5c2e-4389-ab66-eca93215dd6f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b9d0b-5c2e-4389-ab66-eca93215dd6f/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_c86b9d0b-5c2e-4389-ab66-eca93215dd6f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b9d0b-5c2e-4389-ab66-eca93215dd6f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b9d0b-5c2e-4389-ab66-eca93215dd6f/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_c86b9d0b-5c2e-4389-ab66-eca93215dd6f/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 a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:13:47,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:13:47,530 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b9d0b-5c2e-4389-ab66-eca93215dd6f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-12-02 19:13:47,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:13:47,534 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:13:47,558 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:13:47,558 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:13:47,559 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:13:47,559 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:13:47,560 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:13:47,560 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:13:47,561 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:13:47,562 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:13:47,562 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:13:47,563 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:13:47,563 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:13:47,564 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:13:47,564 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:13:47,565 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:13:47,565 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:13:47,566 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:13:47,567 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:13:47,567 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:13:47,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:13:47,568 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:13:47,569 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:13:47,569 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:13:47,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:13:47,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:13:47,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:13:47,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:13:47,571 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 19:13:47,571 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 19:13:47,571 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:13:47,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:13:47,571 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:13:47,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:13:47,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:13:47,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:13:47,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:13:47,572 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:13:47,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:13:47,573 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:13:47,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:13:47,574 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:13:47,574 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:13:47,574 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:13:47,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:13:47,574 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_c86b9d0b-5c2e-4389-ab66-eca93215dd6f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b9d0b-5c2e-4389-ab66-eca93215dd6f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 [2023-12-02 19:13:47,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:13:47,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:13:47,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:13:47,804 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:13:47,804 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:13:47,806 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b9d0b-5c2e-4389-ab66-eca93215dd6f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread/stack-1.i [2023-12-02 19:13:50,601 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:13:50,824 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:13:50,825 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b9d0b-5c2e-4389-ab66-eca93215dd6f/sv-benchmarks/c/pthread/stack-1.i [2023-12-02 19:13:50,843 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b9d0b-5c2e-4389-ab66-eca93215dd6f/bin/utaipan-verify-nQ1chXbOIh/data/2b8355bf9/de043ad4880940a197d42808c24ef83c/FLAG5a1d37d56 [2023-12-02 19:13:50,858 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b9d0b-5c2e-4389-ab66-eca93215dd6f/bin/utaipan-verify-nQ1chXbOIh/data/2b8355bf9/de043ad4880940a197d42808c24ef83c [2023-12-02 19:13:50,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:13:50,862 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:13:50,863 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:13:50,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:13:50,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:13:50,870 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:13:50" (1/1) ... [2023-12-02 19:13:50,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c3059b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:50, skipping insertion in model container [2023-12-02 19:13:50,871 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:13:50" (1/1) ... [2023-12-02 19:13:50,925 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:13:51,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:13:51,365 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:13:51,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:13:51,474 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:13:51,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:51 WrapperNode [2023-12-02 19:13:51,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:13:51,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:13:51,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:13:51,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:13:51,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:51" (1/1) ... [2023-12-02 19:13:51,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:51" (1/1) ... [2023-12-02 19:13:51,531 INFO L138 Inliner]: procedures = 278, calls = 46, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 208 [2023-12-02 19:13:51,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:13:51,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:13:51,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:13:51,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:13:51,542 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:51" (1/1) ... [2023-12-02 19:13:51,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:51" (1/1) ... [2023-12-02 19:13:51,546 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:51" (1/1) ... [2023-12-02 19:13:51,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:51" (1/1) ... [2023-12-02 19:13:51,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:51" (1/1) ... [2023-12-02 19:13:51,562 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:51" (1/1) ... [2023-12-02 19:13:51,565 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:51" (1/1) ... [2023-12-02 19:13:51,567 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:51" (1/1) ... [2023-12-02 19:13:51,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:13:51,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:13:51,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:13:51,573 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:13:51,574 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:51" (1/1) ... [2023-12-02 19:13:51,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:13:51,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b9d0b-5c2e-4389-ab66-eca93215dd6f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:13:51,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b9d0b-5c2e-4389-ab66-eca93215dd6f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:13:51,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b9d0b-5c2e-4389-ab66-eca93215dd6f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:13:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-12-02 19:13:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-12-02 19:13:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-12-02 19:13:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-12-02 19:13:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 19:13:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 19:13:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 19:13:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 19:13:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 19:13:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 19:13:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:13:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:13:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:13:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:13:51,639 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 19:13:51,778 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:13:51,780 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:13:52,119 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:13:52,144 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:13:52,145 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 19:13:52,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:13:52 BoogieIcfgContainer [2023-12-02 19:13:52,147 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:13:52,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:13:52,150 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:13:52,153 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:13:52,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:13:50" (1/3) ... [2023-12-02 19:13:52,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c767b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:13:52, skipping insertion in model container [2023-12-02 19:13:52,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:13:51" (2/3) ... [2023-12-02 19:13:52,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c767b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:13:52, skipping insertion in model container [2023-12-02 19:13:52,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:13:52" (3/3) ... [2023-12-02 19:13:52,156 INFO L112 eAbstractionObserver]: Analyzing ICFG stack-1.i [2023-12-02 19:13:52,163 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 19:13:52,171 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:13:52,171 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-12-02 19:13:52,172 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 19:13:52,273 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-02 19:13:52,310 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 225 places, 230 transitions, 474 flow [2023-12-02 19:13:53,824 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 59482 states, 59392 states have (on average 3.016315328663793) internal successors, (179145), 59481 states have internal predecessors, (179145), 0 states have call successors, (0), 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 19:13:53,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:13:53,846 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;@226db7bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:13:53,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-12-02 19:13:53,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 59482 states, 59392 states have (on average 3.016315328663793) internal successors, (179145), 59481 states have internal predecessors, (179145), 0 states have call successors, (0), 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 19:13:53,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 19:13:53,960 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:13:53,961 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] [2023-12-02 19:13:53,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:13:53,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:13:53,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1445275159, now seen corresponding path program 1 times [2023-12-02 19:13:53,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:13:53,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752198938] [2023-12-02 19:13:53,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:13:53,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:13:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:13:54,909 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 19:13:54,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:13:54,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752198938] [2023-12-02 19:13:54,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752198938] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:13:54,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:13:54,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:13:54,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245728835] [2023-12-02 19:13:54,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:13:54,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:13:54,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:13:54,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:13:54,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:13:55,036 INFO L87 Difference]: Start difference. First operand has 59482 states, 59392 states have (on average 3.016315328663793) internal successors, (179145), 59481 states have internal predecessors, (179145), 0 states have call successors, (0), 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 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:13:56,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:13:56,397 INFO L93 Difference]: Finished difference Result 78619 states and 227239 transitions. [2023-12-02 19:13:56,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:13:56,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-02 19:13:56,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:13:56,838 INFO L225 Difference]: With dead ends: 78619 [2023-12-02 19:13:56,838 INFO L226 Difference]: Without dead ends: 78261 [2023-12-02 19:13:56,840 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 19:13:56,843 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 572 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:13:56,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1578 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 19:13:57,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78261 states. [2023-12-02 19:13:59,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78261 to 72727. [2023-12-02 19:13:59,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72727 states, 72597 states have (on average 2.9602876151907105) internal successors, (214908), 72726 states have internal predecessors, (214908), 0 states have call successors, (0), 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 19:13:59,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72727 states to 72727 states and 214908 transitions. [2023-12-02 19:13:59,798 INFO L78 Accepts]: Start accepts. Automaton has 72727 states and 214908 transitions. Word has length 45 [2023-12-02 19:13:59,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:13:59,799 INFO L495 AbstractCegarLoop]: Abstraction has 72727 states and 214908 transitions. [2023-12-02 19:13:59,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:13:59,800 INFO L276 IsEmpty]: Start isEmpty. Operand 72727 states and 214908 transitions. [2023-12-02 19:13:59,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 19:13:59,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:13:59,807 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] [2023-12-02 19:13:59,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:13:59,808 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:13:59,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:13:59,809 INFO L85 PathProgramCache]: Analyzing trace with hash 2039957012, now seen corresponding path program 1 times [2023-12-02 19:13:59,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:13:59,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710596478] [2023-12-02 19:13:59,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:13:59,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:13:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:13:59,856 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 19:13:59,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:13:59,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710596478] [2023-12-02 19:13:59,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710596478] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:13:59,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:13:59,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 19:13:59,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824860500] [2023-12-02 19:13:59,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:13:59,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:13:59,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:13:59,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:13:59,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:13:59,861 INFO L87 Difference]: Start difference. First operand 72727 states and 214908 transitions. Second operand has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:14:01,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:14:01,051 INFO L93 Difference]: Finished difference Result 115441 states and 334653 transitions. [2023-12-02 19:14:01,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:14:01,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-02 19:14:01,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:14:01,608 INFO L225 Difference]: With dead ends: 115441 [2023-12-02 19:14:01,608 INFO L226 Difference]: Without dead ends: 115441 [2023-12-02 19:14:01,609 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 19:14:01,610 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 156 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:14:01,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 422 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:14:01,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115441 states. [2023-12-02 19:14:03,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115441 to 75009. [2023-12-02 19:14:03,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75009 states, 74903 states have (on average 2.9077607038436377) internal successors, (217800), 75008 states have internal predecessors, (217800), 0 states have call successors, (0), 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 19:14:03,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75009 states to 75009 states and 217800 transitions. [2023-12-02 19:14:03,949 INFO L78 Accepts]: Start accepts. Automaton has 75009 states and 217800 transitions. Word has length 45 [2023-12-02 19:14:03,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:14:03,949 INFO L495 AbstractCegarLoop]: Abstraction has 75009 states and 217800 transitions. [2023-12-02 19:14:03,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:14:03,950 INFO L276 IsEmpty]: Start isEmpty. Operand 75009 states and 217800 transitions. [2023-12-02 19:14:03,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 19:14:03,961 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:03,961 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] [2023-12-02 19:14:03,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 19:14:03,962 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:14:03,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:03,963 INFO L85 PathProgramCache]: Analyzing trace with hash -455583198, now seen corresponding path program 1 times [2023-12-02 19:14:03,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:14:03,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172291607] [2023-12-02 19:14:03,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:03,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:14:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:04,066 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 19:14:04,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:14:04,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172291607] [2023-12-02 19:14:04,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172291607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:14:04,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:14:04,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:14:04,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754754280] [2023-12-02 19:14:04,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:14:04,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:14:04,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:14:04,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:14:04,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:14:04,070 INFO L87 Difference]: Start difference. First operand 75009 states and 217800 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 19:14:05,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:14:05,020 INFO L93 Difference]: Finished difference Result 128402 states and 373448 transitions. [2023-12-02 19:14:05,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:14:05,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2023-12-02 19:14:05,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:14:05,425 INFO L225 Difference]: With dead ends: 128402 [2023-12-02 19:14:05,426 INFO L226 Difference]: Without dead ends: 128402 [2023-12-02 19:14:05,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:14:05,427 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 148 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:14:05,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 461 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 19:14:05,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128402 states. [2023-12-02 19:14:07,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128402 to 75591. [2023-12-02 19:14:07,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75591 states, 75485 states have (on average 2.9077830032456777) internal successors, (219494), 75590 states have internal predecessors, (219494), 0 states have call successors, (0), 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 19:14:07,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75591 states to 75591 states and 219494 transitions. [2023-12-02 19:14:07,600 INFO L78 Accepts]: Start accepts. Automaton has 75591 states and 219494 transitions. Word has length 60 [2023-12-02 19:14:07,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:14:07,600 INFO L495 AbstractCegarLoop]: Abstraction has 75591 states and 219494 transitions. [2023-12-02 19:14:07,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 19:14:07,601 INFO L276 IsEmpty]: Start isEmpty. Operand 75591 states and 219494 transitions. [2023-12-02 19:14:07,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 19:14:07,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:07,611 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] [2023-12-02 19:14:07,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 19:14:07,611 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:14:07,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:07,612 INFO L85 PathProgramCache]: Analyzing trace with hash -602682298, now seen corresponding path program 1 times [2023-12-02 19:14:07,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:14:07,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635898244] [2023-12-02 19:14:07,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:07,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:14:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:07,686 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 19:14:07,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:14:07,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635898244] [2023-12-02 19:14:07,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635898244] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:14:07,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:14:07,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:14:07,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518182784] [2023-12-02 19:14:07,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:14:07,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:14:07,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:14:07,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:14:07,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:14:07,689 INFO L87 Difference]: Start difference. First operand 75591 states and 219494 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 19:14:08,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:14:08,245 INFO L93 Difference]: Finished difference Result 102953 states and 297780 transitions. [2023-12-02 19:14:08,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:14:08,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2023-12-02 19:14:08,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:14:08,870 INFO L225 Difference]: With dead ends: 102953 [2023-12-02 19:14:08,870 INFO L226 Difference]: Without dead ends: 102046 [2023-12-02 19:14:08,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 19:14:08,872 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 113 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:14:08,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 384 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 19:14:09,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102046 states. [2023-12-02 19:14:10,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102046 to 98642. [2023-12-02 19:14:10,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98642 states, 98536 states have (on average 2.9126816594950067) internal successors, (287004), 98641 states have internal predecessors, (287004), 0 states have call successors, (0), 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 19:14:10,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98642 states to 98642 states and 287004 transitions. [2023-12-02 19:14:10,942 INFO L78 Accepts]: Start accepts. Automaton has 98642 states and 287004 transitions. Word has length 61 [2023-12-02 19:14:10,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:14:10,943 INFO L495 AbstractCegarLoop]: Abstraction has 98642 states and 287004 transitions. [2023-12-02 19:14:10,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 19:14:10,943 INFO L276 IsEmpty]: Start isEmpty. Operand 98642 states and 287004 transitions. [2023-12-02 19:14:10,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 19:14:10,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:10,953 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] [2023-12-02 19:14:10,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 19:14:10,954 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:14:10,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:10,955 INFO L85 PathProgramCache]: Analyzing trace with hash -2062986093, now seen corresponding path program 1 times [2023-12-02 19:14:10,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:14:10,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329750060] [2023-12-02 19:14:10,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:10,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:14:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:11,346 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 19:14:11,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:14:11,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329750060] [2023-12-02 19:14:11,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329750060] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:14:11,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:14:11,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:14:11,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668567617] [2023-12-02 19:14:11,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:14:11,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:14:11,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:14:11,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:14:11,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:14:11,350 INFO L87 Difference]: Start difference. First operand 98642 states and 287004 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 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 19:14:12,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:14:12,481 INFO L93 Difference]: Finished difference Result 103178 states and 300278 transitions. [2023-12-02 19:14:12,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:14:12,482 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2023-12-02 19:14:12,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:14:12,836 INFO L225 Difference]: With dead ends: 103178 [2023-12-02 19:14:12,836 INFO L226 Difference]: Without dead ends: 103178 [2023-12-02 19:14:12,837 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 19:14:12,838 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 294 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:14:12,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 948 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 19:14:13,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103178 states. [2023-12-02 19:14:14,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103178 to 101978. [2023-12-02 19:14:15,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101978 states, 101872 states have (on average 2.9129495837914243) internal successors, (296748), 101977 states have internal predecessors, (296748), 0 states have call successors, (0), 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 19:14:15,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101978 states to 101978 states and 296748 transitions. [2023-12-02 19:14:15,299 INFO L78 Accepts]: Start accepts. Automaton has 101978 states and 296748 transitions. Word has length 68 [2023-12-02 19:14:15,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:14:15,299 INFO L495 AbstractCegarLoop]: Abstraction has 101978 states and 296748 transitions. [2023-12-02 19:14:15,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 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 19:14:15,300 INFO L276 IsEmpty]: Start isEmpty. Operand 101978 states and 296748 transitions. [2023-12-02 19:14:15,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:14:15,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:15,309 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] [2023-12-02 19:14:15,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 19:14:15,310 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:14:15,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:15,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1095465248, now seen corresponding path program 1 times [2023-12-02 19:14:15,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:14:15,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797566067] [2023-12-02 19:14:15,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:15,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:14:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:16,425 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 19:14:16,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:14:16,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797566067] [2023-12-02 19:14:16,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797566067] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:14:16,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:14:16,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 19:14:16,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539187777] [2023-12-02 19:14:16,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:14:16,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:14:16,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:14:16,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:14:16,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:14:16,429 INFO L87 Difference]: Start difference. First operand 101978 states and 296748 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:14:17,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:14:17,743 INFO L93 Difference]: Finished difference Result 123707 states and 349316 transitions. [2023-12-02 19:14:17,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 19:14:17,743 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-02 19:14:17,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:14:18,298 INFO L225 Difference]: With dead ends: 123707 [2023-12-02 19:14:18,298 INFO L226 Difference]: Without dead ends: 123577 [2023-12-02 19:14:18,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2023-12-02 19:14:18,300 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 1241 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 3518 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:14:18,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 3518 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 19:14:18,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123577 states. [2023-12-02 19:14:20,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123577 to 104107. [2023-12-02 19:14:20,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104107 states, 104001 states have (on average 2.9156738877510793) internal successors, (303233), 104106 states have internal predecessors, (303233), 0 states have call successors, (0), 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 19:14:21,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104107 states to 104107 states and 303233 transitions. [2023-12-02 19:14:21,051 INFO L78 Accepts]: Start accepts. Automaton has 104107 states and 303233 transitions. Word has length 78 [2023-12-02 19:14:21,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:14:21,051 INFO L495 AbstractCegarLoop]: Abstraction has 104107 states and 303233 transitions. [2023-12-02 19:14:21,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:14:21,051 INFO L276 IsEmpty]: Start isEmpty. Operand 104107 states and 303233 transitions. [2023-12-02 19:14:21,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:14:21,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:21,060 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] [2023-12-02 19:14:21,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 19:14:21,060 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:14:21,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:21,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1789474514, now seen corresponding path program 2 times [2023-12-02 19:14:21,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:14:21,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593972330] [2023-12-02 19:14:21,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:21,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:14:21,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:21,695 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 19:14:21,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:14:21,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593972330] [2023-12-02 19:14:21,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593972330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:14:21,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:14:21,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 19:14:21,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632693931] [2023-12-02 19:14:21,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:14:21,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:14:21,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:14:21,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:14:21,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:14:21,698 INFO L87 Difference]: Start difference. First operand 104107 states and 303233 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:14:23,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:14:23,255 INFO L93 Difference]: Finished difference Result 133182 states and 375829 transitions. [2023-12-02 19:14:23,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 19:14:23,256 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-02 19:14:23,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:14:23,583 INFO L225 Difference]: With dead ends: 133182 [2023-12-02 19:14:23,583 INFO L226 Difference]: Without dead ends: 133052 [2023-12-02 19:14:23,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2023-12-02 19:14:23,584 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 1567 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 2915 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:14:23,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1567 Valid, 2915 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 19:14:23,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133052 states. [2023-12-02 19:14:26,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133052 to 104416. [2023-12-02 19:14:26,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104416 states, 104310 states have (on average 2.9159812098552393) internal successors, (304166), 104415 states have internal predecessors, (304166), 0 states have call successors, (0), 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 19:14:26,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104416 states to 104416 states and 304166 transitions. [2023-12-02 19:14:26,378 INFO L78 Accepts]: Start accepts. Automaton has 104416 states and 304166 transitions. Word has length 78 [2023-12-02 19:14:26,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:14:26,378 INFO L495 AbstractCegarLoop]: Abstraction has 104416 states and 304166 transitions. [2023-12-02 19:14:26,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:14:26,378 INFO L276 IsEmpty]: Start isEmpty. Operand 104416 states and 304166 transitions. [2023-12-02 19:14:26,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:14:26,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:26,387 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] [2023-12-02 19:14:26,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 19:14:26,388 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:14:26,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:26,388 INFO L85 PathProgramCache]: Analyzing trace with hash -889401140, now seen corresponding path program 3 times [2023-12-02 19:14:26,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:14:26,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827584893] [2023-12-02 19:14:26,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:26,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:14:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:26,992 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 19:14:26,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:14:26,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827584893] [2023-12-02 19:14:26,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827584893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:14:26,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:14:26,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 19:14:26,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370611132] [2023-12-02 19:14:26,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:14:26,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:14:26,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:14:26,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:14:26,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:14:26,994 INFO L87 Difference]: Start difference. First operand 104416 states and 304166 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:14:28,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:14:28,694 INFO L93 Difference]: Finished difference Result 136689 states and 388172 transitions. [2023-12-02 19:14:28,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 19:14:28,694 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-02 19:14:28,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:14:29,050 INFO L225 Difference]: With dead ends: 136689 [2023-12-02 19:14:29,050 INFO L226 Difference]: Without dead ends: 136429 [2023-12-02 19:14:29,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2023-12-02 19:14:29,051 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 1354 mSDsluCounter, 3349 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 4097 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:14:29,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1354 Valid, 4097 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-02 19:14:29,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136429 states. [2023-12-02 19:14:31,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136429 to 106272. [2023-12-02 19:14:31,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106272 states, 106166 states have (on average 2.918203567997287) internal successors, (309814), 106271 states have internal predecessors, (309814), 0 states have call successors, (0), 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 19:14:31,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106272 states to 106272 states and 309814 transitions. [2023-12-02 19:14:31,890 INFO L78 Accepts]: Start accepts. Automaton has 106272 states and 309814 transitions. Word has length 78 [2023-12-02 19:14:31,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:14:31,890 INFO L495 AbstractCegarLoop]: Abstraction has 106272 states and 309814 transitions. [2023-12-02 19:14:31,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:14:31,890 INFO L276 IsEmpty]: Start isEmpty. Operand 106272 states and 309814 transitions. [2023-12-02 19:14:31,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:14:31,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:31,903 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] [2023-12-02 19:14:31,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 19:14:31,904 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:14:31,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:31,904 INFO L85 PathProgramCache]: Analyzing trace with hash 854653730, now seen corresponding path program 4 times [2023-12-02 19:14:31,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:14:31,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918531387] [2023-12-02 19:14:31,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:31,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:14:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:32,753 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 19:14:32,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:14:32,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918531387] [2023-12-02 19:14:32,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918531387] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:14:32,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:14:32,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 19:14:32,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48677572] [2023-12-02 19:14:32,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:14:32,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:14:32,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:14:32,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:14:32,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:14:32,756 INFO L87 Difference]: Start difference. First operand 106272 states and 309814 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:14:34,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:14:34,003 INFO L93 Difference]: Finished difference Result 156514 states and 445629 transitions. [2023-12-02 19:14:34,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 19:14:34,004 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-02 19:14:34,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:14:34,439 INFO L225 Difference]: With dead ends: 156514 [2023-12-02 19:14:34,439 INFO L226 Difference]: Without dead ends: 156384 [2023-12-02 19:14:34,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2023-12-02 19:14:34,440 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 1632 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 2324 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:14:34,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 2324 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 19:14:35,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156384 states. [2023-12-02 19:14:36,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156384 to 106890. [2023-12-02 19:14:37,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106890 states, 106784 states have (on average 2.9187893317350913) internal successors, (311680), 106889 states have internal predecessors, (311680), 0 states have call successors, (0), 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 19:14:37,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106890 states to 106890 states and 311680 transitions. [2023-12-02 19:14:37,667 INFO L78 Accepts]: Start accepts. Automaton has 106890 states and 311680 transitions. Word has length 78 [2023-12-02 19:14:37,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:14:37,668 INFO L495 AbstractCegarLoop]: Abstraction has 106890 states and 311680 transitions. [2023-12-02 19:14:37,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:14:37,668 INFO L276 IsEmpty]: Start isEmpty. Operand 106890 states and 311680 transitions. [2023-12-02 19:14:37,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:14:37,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:37,731 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] [2023-12-02 19:14:37,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 19:14:37,732 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:14:37,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:37,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1754727104, now seen corresponding path program 5 times [2023-12-02 19:14:37,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:14:37,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472591185] [2023-12-02 19:14:37,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:37,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:14:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:38,400 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 19:14:38,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:14:38,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472591185] [2023-12-02 19:14:38,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472591185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:14:38,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:14:38,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 19:14:38,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101613720] [2023-12-02 19:14:38,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:14:38,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:14:38,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:14:38,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:14:38,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:14:38,402 INFO L87 Difference]: Start difference. First operand 106890 states and 311680 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:14:40,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:14:40,418 INFO L93 Difference]: Finished difference Result 175556 states and 502523 transitions. [2023-12-02 19:14:40,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 19:14:40,419 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-02 19:14:40,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:14:40,924 INFO L225 Difference]: With dead ends: 175556 [2023-12-02 19:14:40,924 INFO L226 Difference]: Without dead ends: 175426 [2023-12-02 19:14:40,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=285, Unknown=0, NotChecked=0, Total=420 [2023-12-02 19:14:40,925 INFO L413 NwaCegarLoop]: 717 mSDtfsCounter, 1453 mSDsluCounter, 3553 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 4270 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 19:14:40,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 4270 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 19:14:41,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175426 states. [2023-12-02 19:14:43,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175426 to 110413. [2023-12-02 19:14:43,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110413 states, 110307 states have (on average 2.9240392722130055) internal successors, (322542), 110412 states have internal predecessors, (322542), 0 states have call successors, (0), 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 19:14:43,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110413 states to 110413 states and 322542 transitions. [2023-12-02 19:14:43,893 INFO L78 Accepts]: Start accepts. Automaton has 110413 states and 322542 transitions. Word has length 78 [2023-12-02 19:14:43,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:14:43,893 INFO L495 AbstractCegarLoop]: Abstraction has 110413 states and 322542 transitions. [2023-12-02 19:14:43,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:14:43,894 INFO L276 IsEmpty]: Start isEmpty. Operand 110413 states and 322542 transitions. [2023-12-02 19:14:43,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:14:43,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:43,904 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] [2023-12-02 19:14:43,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 19:14:43,905 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:14:43,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:43,905 INFO L85 PathProgramCache]: Analyzing trace with hash -104520074, now seen corresponding path program 6 times [2023-12-02 19:14:43,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:14:43,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598657655] [2023-12-02 19:14:43,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:43,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:14:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:44,399 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 19:14:44,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:14:44,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598657655] [2023-12-02 19:14:44,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598657655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:14:44,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:14:44,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 19:14:44,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406535586] [2023-12-02 19:14:44,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:14:44,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:14:44,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:14:44,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:14:44,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:14:44,401 INFO L87 Difference]: Start difference. First operand 110413 states and 322542 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:14:46,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:14:46,424 INFO L93 Difference]: Finished difference Result 179475 states and 516397 transitions. [2023-12-02 19:14:46,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 19:14:46,425 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-02 19:14:46,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:14:46,958 INFO L225 Difference]: With dead ends: 179475 [2023-12-02 19:14:46,958 INFO L226 Difference]: Without dead ends: 179345 [2023-12-02 19:14:46,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2023-12-02 19:14:46,959 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 1312 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 3623 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:14:46,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 3623 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 19:14:47,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179345 states. [2023-12-02 19:14:49,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179345 to 120757. [2023-12-02 19:14:50,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120757 states, 120651 states have (on average 2.9394203114769044) internal successors, (354644), 120756 states have internal predecessors, (354644), 0 states have call successors, (0), 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 19:14:50,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120757 states to 120757 states and 354644 transitions. [2023-12-02 19:14:50,719 INFO L78 Accepts]: Start accepts. Automaton has 120757 states and 354644 transitions. Word has length 78 [2023-12-02 19:14:50,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:14:50,719 INFO L495 AbstractCegarLoop]: Abstraction has 120757 states and 354644 transitions. [2023-12-02 19:14:50,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:14:50,719 INFO L276 IsEmpty]: Start isEmpty. Operand 120757 states and 354644 transitions. [2023-12-02 19:14:50,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:14:50,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:50,730 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] [2023-12-02 19:14:50,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 19:14:50,730 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:14:50,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:50,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1302591442, now seen corresponding path program 7 times [2023-12-02 19:14:50,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:14:50,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885374304] [2023-12-02 19:14:50,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:50,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:14:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:51,162 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 19:14:51,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:14:51,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885374304] [2023-12-02 19:14:51,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885374304] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:14:51,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:14:51,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 19:14:51,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966705315] [2023-12-02 19:14:51,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:14:51,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:14:51,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:14:51,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:14:51,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:14:51,164 INFO L87 Difference]: Start difference. First operand 120757 states and 354644 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:14:52,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:14:52,861 INFO L93 Difference]: Finished difference Result 176002 states and 504849 transitions. [2023-12-02 19:14:52,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 19:14:52,861 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-02 19:14:52,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:14:53,434 INFO L225 Difference]: With dead ends: 176002 [2023-12-02 19:14:53,435 INFO L226 Difference]: Without dead ends: 175872 [2023-12-02 19:14:53,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2023-12-02 19:14:53,436 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 1305 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 2551 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:14:53,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 2551 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 19:14:53,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175872 states. [2023-12-02 19:14:56,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175872 to 121684. [2023-12-02 19:14:56,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121684 states, 121578 states have (on average 2.940030268634128) internal successors, (357443), 121683 states have internal predecessors, (357443), 0 states have call successors, (0), 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 19:14:56,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121684 states to 121684 states and 357443 transitions. [2023-12-02 19:14:56,588 INFO L78 Accepts]: Start accepts. Automaton has 121684 states and 357443 transitions. Word has length 78 [2023-12-02 19:14:56,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:14:56,588 INFO L495 AbstractCegarLoop]: Abstraction has 121684 states and 357443 transitions. [2023-12-02 19:14:56,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:14:56,589 INFO L276 IsEmpty]: Start isEmpty. Operand 121684 states and 357443 transitions. [2023-12-02 19:14:56,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:14:56,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:56,601 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] [2023-12-02 19:14:56,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 19:14:56,601 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:14:56,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:56,602 INFO L85 PathProgramCache]: Analyzing trace with hash -402518068, now seen corresponding path program 8 times [2023-12-02 19:14:56,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:14:56,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593008452] [2023-12-02 19:14:56,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:56,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:14:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:57,013 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 19:14:57,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:14:57,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593008452] [2023-12-02 19:14:57,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593008452] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:14:57,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:14:57,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 19:14:57,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736962053] [2023-12-02 19:14:57,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:14:57,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:14:57,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:14:57,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:14:57,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:14:57,015 INFO L87 Difference]: Start difference. First operand 121684 states and 357443 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:14:58,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:14:58,771 INFO L93 Difference]: Finished difference Result 195044 states and 561743 transitions. [2023-12-02 19:14:58,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 19:14:58,771 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-02 19:14:58,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:14:59,319 INFO L225 Difference]: With dead ends: 195044 [2023-12-02 19:14:59,319 INFO L226 Difference]: Without dead ends: 194914 [2023-12-02 19:14:59,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2023-12-02 19:14:59,320 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 1611 mSDsluCounter, 1869 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1611 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:14:59,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1611 Valid, 2490 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 19:15:00,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194914 states. [2023-12-02 19:15:02,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194914 to 121375. [2023-12-02 19:15:02,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121375 states, 121269 states have (on average 2.939827985717702) internal successors, (356510), 121374 states have internal predecessors, (356510), 0 states have call successors, (0), 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 19:15:03,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121375 states to 121375 states and 356510 transitions. [2023-12-02 19:15:03,257 INFO L78 Accepts]: Start accepts. Automaton has 121375 states and 356510 transitions. Word has length 78 [2023-12-02 19:15:03,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:15:03,258 INFO L495 AbstractCegarLoop]: Abstraction has 121375 states and 356510 transitions. [2023-12-02 19:15:03,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:15:03,258 INFO L276 IsEmpty]: Start isEmpty. Operand 121375 states and 356510 transitions. [2023-12-02 19:15:03,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:15:03,269 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:15:03,269 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] [2023-12-02 19:15:03,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 19:15:03,269 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:15:03,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:15:03,269 INFO L85 PathProgramCache]: Analyzing trace with hash 2033202050, now seen corresponding path program 9 times [2023-12-02 19:15:03,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:15:03,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322640160] [2023-12-02 19:15:03,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:15:03,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:15:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:15:03,638 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 19:15:03,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:15:03,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322640160] [2023-12-02 19:15:03,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322640160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:15:03,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:15:03,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 19:15:03,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199511470] [2023-12-02 19:15:03,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:15:03,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:15:03,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:15:03,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:15:03,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:15:03,640 INFO L87 Difference]: Start difference. First operand 121375 states and 356510 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:15:05,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:15:05,446 INFO L93 Difference]: Finished difference Result 213262 states and 616111 transitions. [2023-12-02 19:15:05,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 19:15:05,446 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-02 19:15:05,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:15:06,087 INFO L225 Difference]: With dead ends: 213262 [2023-12-02 19:15:06,087 INFO L226 Difference]: Without dead ends: 213132 [2023-12-02 19:15:06,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2023-12-02 19:15:06,088 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 1344 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:15:06,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1344 Valid, 2722 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 19:15:06,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213132 states. [2023-12-02 19:15:09,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213132 to 124798. [2023-12-02 19:15:09,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124798 states, 124692 states have (on average 2.943813556603471) internal successors, (367070), 124797 states have internal predecessors, (367070), 0 states have call successors, (0), 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 19:15:09,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124798 states to 124798 states and 367070 transitions. [2023-12-02 19:15:09,722 INFO L78 Accepts]: Start accepts. Automaton has 124798 states and 367070 transitions. Word has length 78 [2023-12-02 19:15:09,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:15:09,722 INFO L495 AbstractCegarLoop]: Abstraction has 124798 states and 367070 transitions. [2023-12-02 19:15:09,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:15:09,722 INFO L276 IsEmpty]: Start isEmpty. Operand 124798 states and 367070 transitions. [2023-12-02 19:15:09,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:15:09,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:15:09,731 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] [2023-12-02 19:15:09,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 19:15:09,732 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:15:09,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:15:09,732 INFO L85 PathProgramCache]: Analyzing trace with hash -2080983976, now seen corresponding path program 10 times [2023-12-02 19:15:09,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:15:09,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964220287] [2023-12-02 19:15:09,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:15:09,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:15:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:15:10,564 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 19:15:10,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:15:10,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964220287] [2023-12-02 19:15:10,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964220287] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:15:10,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:15:10,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 19:15:10,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4385506] [2023-12-02 19:15:10,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:15:10,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:15:10,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:15:10,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:15:10,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:15:10,566 INFO L87 Difference]: Start difference. First operand 124798 states and 367070 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:15:12,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:15:12,525 INFO L93 Difference]: Finished difference Result 207764 states and 602034 transitions. [2023-12-02 19:15:12,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 19:15:12,525 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-02 19:15:12,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:15:13,157 INFO L225 Difference]: With dead ends: 207764 [2023-12-02 19:15:13,158 INFO L226 Difference]: Without dead ends: 207634 [2023-12-02 19:15:13,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2023-12-02 19:15:13,159 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 1289 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 3167 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:15:13,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 3167 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 19:15:13,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207634 states. [2023-12-02 19:15:16,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207634 to 131719. [2023-12-02 19:15:16,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131719 states, 131613 states have (on average 2.9526870445928592) internal successors, (388612), 131718 states have internal predecessors, (388612), 0 states have call successors, (0), 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 19:15:16,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131719 states to 131719 states and 388612 transitions. [2023-12-02 19:15:16,677 INFO L78 Accepts]: Start accepts. Automaton has 131719 states and 388612 transitions. Word has length 78 [2023-12-02 19:15:16,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:15:16,677 INFO L495 AbstractCegarLoop]: Abstraction has 131719 states and 388612 transitions. [2023-12-02 19:15:16,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:15:16,677 INFO L276 IsEmpty]: Start isEmpty. Operand 131719 states and 388612 transitions. [2023-12-02 19:15:16,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:15:16,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:15:16,687 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] [2023-12-02 19:15:16,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 19:15:16,687 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:15:16,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:15:16,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1379292322, now seen corresponding path program 11 times [2023-12-02 19:15:16,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:15:16,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496986910] [2023-12-02 19:15:16,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:15:16,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:15:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:15:17,483 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 19:15:17,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:15:17,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496986910] [2023-12-02 19:15:17,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496986910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:15:17,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:15:17,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 19:15:17,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169662473] [2023-12-02 19:15:17,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:15:17,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:15:17,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:15:17,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:15:17,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:15:17,485 INFO L87 Difference]: Start difference. First operand 131719 states and 388612 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:15:18,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:15:18,720 INFO L93 Difference]: Finished difference Result 165439 states and 476490 transitions. [2023-12-02 19:15:18,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 19:15:18,720 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-02 19:15:18,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:15:19,195 INFO L225 Difference]: With dead ends: 165439 [2023-12-02 19:15:19,195 INFO L226 Difference]: Without dead ends: 165309 [2023-12-02 19:15:19,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2023-12-02 19:15:19,196 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 1440 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 2343 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:15:19,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1440 Valid, 2343 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 19:15:19,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165309 states. [2023-12-02 19:15:22,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165309 to 131410. [2023-12-02 19:15:22,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131410 states, 131304 states have (on average 2.9525300067020046) internal successors, (387679), 131409 states have internal predecessors, (387679), 0 states have call successors, (0), 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 19:15:22,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131410 states to 131410 states and 387679 transitions. [2023-12-02 19:15:22,992 INFO L78 Accepts]: Start accepts. Automaton has 131410 states and 387679 transitions. Word has length 78 [2023-12-02 19:15:22,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:15:22,993 INFO L495 AbstractCegarLoop]: Abstraction has 131410 states and 387679 transitions. [2023-12-02 19:15:22,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:15:22,993 INFO L276 IsEmpty]: Start isEmpty. Operand 131410 states and 387679 transitions. [2023-12-02 19:15:23,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:15:23,005 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:15:23,005 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] [2023-12-02 19:15:23,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-02 19:15:23,006 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:15:23,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:15:23,006 INFO L85 PathProgramCache]: Analyzing trace with hash -2015601600, now seen corresponding path program 12 times [2023-12-02 19:15:23,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:15:23,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925716361] [2023-12-02 19:15:23,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:15:23,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:15:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:15:23,412 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 19:15:23,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:15:23,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925716361] [2023-12-02 19:15:23,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925716361] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:15:23,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:15:23,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 19:15:23,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595853626] [2023-12-02 19:15:23,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:15:23,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:15:23,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:15:23,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:15:23,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:15:23,413 INFO L87 Difference]: Start difference. First operand 131410 states and 387679 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:15:25,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:15:25,169 INFO L93 Difference]: Finished difference Result 169634 states and 488871 transitions. [2023-12-02 19:15:25,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 19:15:25,170 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-02 19:15:25,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:15:25,648 INFO L225 Difference]: With dead ends: 169634 [2023-12-02 19:15:25,648 INFO L226 Difference]: Without dead ends: 169504 [2023-12-02 19:15:25,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2023-12-02 19:15:25,649 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 1441 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:15:25,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1441 Valid, 2466 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 19:15:25,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169504 states. [2023-12-02 19:15:28,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169504 to 131101. [2023-12-02 19:15:28,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131101 states, 130995 states have (on average 2.9523722279476314) internal successors, (386746), 131100 states have internal predecessors, (386746), 0 states have call successors, (0), 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 19:15:29,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131101 states to 131101 states and 386746 transitions. [2023-12-02 19:15:29,064 INFO L78 Accepts]: Start accepts. Automaton has 131101 states and 386746 transitions. Word has length 78 [2023-12-02 19:15:29,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:15:29,064 INFO L495 AbstractCegarLoop]: Abstraction has 131101 states and 386746 transitions. [2023-12-02 19:15:29,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:15:29,065 INFO L276 IsEmpty]: Start isEmpty. Operand 131101 states and 386746 transitions. [2023-12-02 19:15:29,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:15:29,074 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:15:29,074 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] [2023-12-02 19:15:29,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 19:15:29,074 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:15:29,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:15:29,075 INFO L85 PathProgramCache]: Analyzing trace with hash 420118518, now seen corresponding path program 13 times [2023-12-02 19:15:29,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:15:29,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099505672] [2023-12-02 19:15:29,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:15:29,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:15:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:15:29,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:15:29,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:15:29,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099505672] [2023-12-02 19:15:29,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099505672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:15:29,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:15:29,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 19:15:29,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822513660] [2023-12-02 19:15:29,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:15:29,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:15:29,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:15:29,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:15:29,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:15:29,486 INFO L87 Difference]: Start difference. First operand 131101 states and 386746 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:15:31,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:15:31,290 INFO L93 Difference]: Finished difference Result 182903 states and 528358 transitions. [2023-12-02 19:15:31,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 19:15:31,291 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-02 19:15:31,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:15:31,816 INFO L225 Difference]: With dead ends: 182903 [2023-12-02 19:15:31,816 INFO L226 Difference]: Without dead ends: 182773 [2023-12-02 19:15:31,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2023-12-02 19:15:31,817 INFO L413 NwaCegarLoop]: 658 mSDtfsCounter, 1436 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:15:31,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 2729 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 19:15:32,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182773 states. [2023-12-02 19:15:34,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182773 to 130792. [2023-12-02 19:15:34,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130792 states, 130686 states have (on average 2.9522137030745452) internal successors, (385813), 130791 states have internal predecessors, (385813), 0 states have call successors, (0), 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 19:15:35,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130792 states to 130792 states and 385813 transitions. [2023-12-02 19:15:35,692 INFO L78 Accepts]: Start accepts. Automaton has 130792 states and 385813 transitions. Word has length 78 [2023-12-02 19:15:35,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:15:35,692 INFO L495 AbstractCegarLoop]: Abstraction has 130792 states and 385813 transitions. [2023-12-02 19:15:35,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:15:35,693 INFO L276 IsEmpty]: Start isEmpty. Operand 130792 states and 385813 transitions. [2023-12-02 19:15:35,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:15:35,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:15:35,709 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] [2023-12-02 19:15:35,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 19:15:35,710 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:15:35,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:15:35,710 INFO L85 PathProgramCache]: Analyzing trace with hash 600899788, now seen corresponding path program 14 times [2023-12-02 19:15:35,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:15:35,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859339831] [2023-12-02 19:15:35,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:15:35,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:15:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:15:36,228 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 19:15:36,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:15:36,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859339831] [2023-12-02 19:15:36,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859339831] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:15:36,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:15:36,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 19:15:36,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632861577] [2023-12-02 19:15:36,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:15:36,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:15:36,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:15:36,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:15:36,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:15:36,230 INFO L87 Difference]: Start difference. First operand 130792 states and 385813 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:15:38,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:15:38,069 INFO L93 Difference]: Finished difference Result 194952 states and 564558 transitions. [2023-12-02 19:15:38,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 19:15:38,069 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-02 19:15:38,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:15:38,628 INFO L225 Difference]: With dead ends: 194952 [2023-12-02 19:15:38,628 INFO L226 Difference]: Without dead ends: 194822 [2023-12-02 19:15:38,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2023-12-02 19:15:38,629 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 1597 mSDsluCounter, 2115 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:15:38,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1597 Valid, 2769 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 19:15:38,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194822 states. [2023-12-02 19:15:41,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194822 to 134215. [2023-12-02 19:15:41,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134215 states, 134109 states have (on average 2.9556032779306385) internal successors, (396373), 134214 states have internal predecessors, (396373), 0 states have call successors, (0), 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 19:15:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134215 states to 134215 states and 396373 transitions. [2023-12-02 19:15:42,093 INFO L78 Accepts]: Start accepts. Automaton has 134215 states and 396373 transitions. Word has length 78 [2023-12-02 19:15:42,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:15:42,093 INFO L495 AbstractCegarLoop]: Abstraction has 134215 states and 396373 transitions. [2023-12-02 19:15:42,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:15:42,094 INFO L276 IsEmpty]: Start isEmpty. Operand 134215 states and 396373 transitions. [2023-12-02 19:15:42,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:15:42,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:15:42,105 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] [2023-12-02 19:15:42,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-02 19:15:42,105 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:15:42,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:15:42,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1984346102, now seen corresponding path program 15 times [2023-12-02 19:15:42,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:15:42,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489145051] [2023-12-02 19:15:42,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:15:42,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:15:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:15:42,422 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 19:15:42,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:15:42,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489145051] [2023-12-02 19:15:42,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489145051] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:15:42,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:15:42,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 19:15:42,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3072946] [2023-12-02 19:15:42,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:15:42,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:15:42,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:15:42,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:15:42,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:15:42,424 INFO L87 Difference]: Start difference. First operand 134215 states and 396373 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:15:43,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:15:43,996 INFO L93 Difference]: Finished difference Result 159590 states and 471228 transitions. [2023-12-02 19:15:43,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 19:15:43,997 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-02 19:15:43,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:15:44,453 INFO L225 Difference]: With dead ends: 159590 [2023-12-02 19:15:44,453 INFO L226 Difference]: Without dead ends: 159460 [2023-12-02 19:15:44,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2023-12-02 19:15:44,454 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 1758 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1758 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:15:44,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1758 Valid, 2020 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 19:15:44,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159460 states. [2023-12-02 19:15:47,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159460 to 128006. [2023-12-02 19:15:47,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128006 states, 127900 states have (on average 2.9510398749022673) internal successors, (377438), 128005 states have internal predecessors, (377438), 0 states have call successors, (0), 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 19:15:47,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128006 states to 128006 states and 377438 transitions. [2023-12-02 19:15:47,833 INFO L78 Accepts]: Start accepts. Automaton has 128006 states and 377438 transitions. Word has length 78 [2023-12-02 19:15:47,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:15:47,833 INFO L495 AbstractCegarLoop]: Abstraction has 128006 states and 377438 transitions. [2023-12-02 19:15:47,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 19:15:47,833 INFO L276 IsEmpty]: Start isEmpty. Operand 128006 states and 377438 transitions. [2023-12-02 19:15:47,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:15:47,842 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:15:47,842 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] [2023-12-02 19:15:47,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-02 19:15:47,843 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-12-02 19:15:47,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:15:47,843 INFO L85 PathProgramCache]: Analyzing trace with hash -343196583, now seen corresponding path program 1 times [2023-12-02 19:15:47,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:15:47,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238490171] [2023-12-02 19:15:47,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:15:47,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:15:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat