./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcfd2ee-af58-40eb-9247-02817710bc6d/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcfd2ee-af58-40eb-9247-02817710bc6d/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_7dcfd2ee-af58-40eb-9247-02817710bc6d/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcfd2ee-af58-40eb-9247-02817710bc6d/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcfd2ee-af58-40eb-9247-02817710bc6d/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_7dcfd2ee-af58-40eb-9247-02817710bc6d/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 b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:51:58,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:51:58,871 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcfd2ee-af58-40eb-9247-02817710bc6d/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-12-02 12:51:58,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:51:58,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:51:58,901 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:51:58,901 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:51:58,902 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:51:58,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:51:58,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:51:58,904 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:51:58,904 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:51:58,905 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:51:58,905 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:51:58,906 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:51:58,906 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:51:58,907 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:51:58,907 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:51:58,908 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:51:58,908 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:51:58,909 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:51:58,910 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:51:58,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:51:58,911 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:51:58,911 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:51:58,912 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:51:58,912 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:51:58,912 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:51:58,913 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:51:58,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:51:58,914 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:51:58,914 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 12:51:58,914 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 12:51:58,914 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:51:58,915 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:51:58,915 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:51:58,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:51:58,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:51:58,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:51:58,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:51:58,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:51:58,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:51:58,917 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:51:58,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:51:58,917 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:51:58,917 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:51:58,917 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:51:58,917 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:51:58,918 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_7dcfd2ee-af58-40eb-9247-02817710bc6d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcfd2ee-af58-40eb-9247-02817710bc6d/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b [2023-12-02 12:51:59,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:51:59,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:51:59,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:51:59,136 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:51:59,137 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:51:59,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcfd2ee-af58-40eb-9247-02817710bc6d/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2023-12-02 12:52:01,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:52:02,087 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:52:02,088 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcfd2ee-af58-40eb-9247-02817710bc6d/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2023-12-02 12:52:02,102 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcfd2ee-af58-40eb-9247-02817710bc6d/bin/utaipan-verify-nQ1chXbOIh/data/5ff2d6b1a/a362c211aca34f878e6040e36466e75e/FLAGdc090fd3a [2023-12-02 12:52:02,114 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcfd2ee-af58-40eb-9247-02817710bc6d/bin/utaipan-verify-nQ1chXbOIh/data/5ff2d6b1a/a362c211aca34f878e6040e36466e75e [2023-12-02 12:52:02,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:52:02,118 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:52:02,120 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:52:02,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:52:02,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:52:02,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:52:02" (1/1) ... [2023-12-02 12:52:02,126 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355487ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:52:02, skipping insertion in model container [2023-12-02 12:52:02,127 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:52:02" (1/1) ... [2023-12-02 12:52:02,170 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:52:02,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:52:02,514 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:52:02,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:52:02,608 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:52:02,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:52:02 WrapperNode [2023-12-02 12:52:02,609 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:52:02,610 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:52:02,610 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:52:02,610 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:52:02,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:52:02" (1/1) ... [2023-12-02 12:52:02,634 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:52:02" (1/1) ... [2023-12-02 12:52:02,668 INFO L138 Inliner]: procedures = 223, calls = 43, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 229 [2023-12-02 12:52:02,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:52:02,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:52:02,669 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:52:02,669 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:52:02,677 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:52:02" (1/1) ... [2023-12-02 12:52:02,677 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:52:02" (1/1) ... [2023-12-02 12:52:02,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:52:02" (1/1) ... [2023-12-02 12:52:02,683 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:52:02" (1/1) ... [2023-12-02 12:52:02,704 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:52:02" (1/1) ... [2023-12-02 12:52:02,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:52:02" (1/1) ... [2023-12-02 12:52:02,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:52:02" (1/1) ... [2023-12-02 12:52:02,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:52:02" (1/1) ... [2023-12-02 12:52:02,718 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:52:02,719 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:52:02,719 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:52:02,720 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:52:02,721 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:52:02" (1/1) ... [2023-12-02 12:52:02,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:52:02,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcfd2ee-af58-40eb-9247-02817710bc6d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:52:02,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcfd2ee-af58-40eb-9247-02817710bc6d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:52:02,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcfd2ee-af58-40eb-9247-02817710bc6d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:52:02,794 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2023-12-02 12:52:02,794 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2023-12-02 12:52:02,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 12:52:02,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 12:52:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 12:52:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 12:52:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:52:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:52:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:52:02,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:52:02,797 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 12:52:02,917 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:52:02,919 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:52:03,326 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:52:03,340 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:52:03,341 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-02 12:52:03,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:52:03 BoogieIcfgContainer [2023-12-02 12:52:03,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:52:03,345 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:52:03,346 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:52:03,349 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:52:03,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:52:02" (1/3) ... [2023-12-02 12:52:03,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5805cff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:52:03, skipping insertion in model container [2023-12-02 12:52:03,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:52:02" (2/3) ... [2023-12-02 12:52:03,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5805cff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:52:03, skipping insertion in model container [2023-12-02 12:52:03,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:52:03" (3/3) ... [2023-12-02 12:52:03,352 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2023-12-02 12:52:03,361 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 12:52:03,372 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:52:03,372 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-12-02 12:52:03,372 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 12:52:03,471 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-12-02 12:52:03,507 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 270 places, 279 transitions, 565 flow [2023-12-02 12:52:03,791 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 10993 states, 10920 states have (on average 2.106868131868132) internal successors, (23007), 10992 states have internal predecessors, (23007), 0 states have call successors, (0), 0 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 12:52:03,806 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:52:03,811 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;@8a98e8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:52:03,812 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-12-02 12:52:03,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 10993 states, 10920 states have (on average 2.106868131868132) internal successors, (23007), 10992 states have internal predecessors, (23007), 0 states have call successors, (0), 0 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 12:52:03,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 12:52:03,842 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:52:03,842 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] [2023-12-02 12:52:03,843 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:52:03,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:52:03,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1576024726, now seen corresponding path program 1 times [2023-12-02 12:52:03,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:52:03,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961351497] [2023-12-02 12:52:03,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:52:03,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:52:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:52:04,475 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 12:52:04,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:52:04,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961351497] [2023-12-02 12:52:04,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961351497] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:52:04,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:52:04,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:52:04,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042796487] [2023-12-02 12:52:04,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:52:04,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:52:04,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:52:04,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:52:04,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:52:04,524 INFO L87 Difference]: Start difference. First operand has 10993 states, 10920 states have (on average 2.106868131868132) internal successors, (23007), 10992 states have internal predecessors, (23007), 0 states have call successors, (0), 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 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 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 12:52:05,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:52:05,023 INFO L93 Difference]: Finished difference Result 10484 states and 21133 transitions. [2023-12-02 12:52:05,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:52:05,025 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-12-02 12:52:05,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:52:05,093 INFO L225 Difference]: With dead ends: 10484 [2023-12-02 12:52:05,093 INFO L226 Difference]: Without dead ends: 10478 [2023-12-02 12:52:05,094 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 12:52:05,098 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 10 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:52:05,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 670 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 12:52:05,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10478 states. [2023-12-02 12:52:05,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10478 to 10478. [2023-12-02 12:52:05,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10478 states, 10385 states have (on average 2.0337987481945112) internal successors, (21121), 10477 states have internal predecessors, (21121), 0 states have call successors, (0), 0 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 12:52:05,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10478 states to 10478 states and 21121 transitions. [2023-12-02 12:52:05,474 INFO L78 Accepts]: Start accepts. Automaton has 10478 states and 21121 transitions. Word has length 27 [2023-12-02 12:52:05,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:52:05,475 INFO L495 AbstractCegarLoop]: Abstraction has 10478 states and 21121 transitions. [2023-12-02 12:52:05,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 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 12:52:05,476 INFO L276 IsEmpty]: Start isEmpty. Operand 10478 states and 21121 transitions. [2023-12-02 12:52:05,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 12:52:05,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:52:05,477 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] [2023-12-02 12:52:05,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 12:52:05,478 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:52:05,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:52:05,479 INFO L85 PathProgramCache]: Analyzing trace with hash -837296349, now seen corresponding path program 1 times [2023-12-02 12:52:05,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:52:05,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392562785] [2023-12-02 12:52:05,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:52:05,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:52:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:52:05,836 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 12:52:05,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:52:05,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392562785] [2023-12-02 12:52:05,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392562785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:52:05,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:52:05,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:52:05,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44471154] [2023-12-02 12:52:05,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:52:05,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:52:05,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:52:05,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:52:05,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:52:05,840 INFO L87 Difference]: Start difference. First operand 10478 states and 21121 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 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 12:52:06,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:52:06,078 INFO L93 Difference]: Finished difference Result 10477 states and 21120 transitions. [2023-12-02 12:52:06,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:52:06,079 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2023-12-02 12:52:06,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:52:06,149 INFO L225 Difference]: With dead ends: 10477 [2023-12-02 12:52:06,149 INFO L226 Difference]: Without dead ends: 10477 [2023-12-02 12:52:06,150 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 12:52:06,151 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 6 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:52:06,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 390 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:52:06,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10477 states. [2023-12-02 12:52:06,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10477 to 10477. [2023-12-02 12:52:06,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10477 states, 10385 states have (on average 2.0337024554646126) internal successors, (21120), 10476 states have internal predecessors, (21120), 0 states have call successors, (0), 0 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 12:52:06,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10477 states to 10477 states and 21120 transitions. [2023-12-02 12:52:06,561 INFO L78 Accepts]: Start accepts. Automaton has 10477 states and 21120 transitions. Word has length 34 [2023-12-02 12:52:06,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:52:06,562 INFO L495 AbstractCegarLoop]: Abstraction has 10477 states and 21120 transitions. [2023-12-02 12:52:06,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 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 12:52:06,562 INFO L276 IsEmpty]: Start isEmpty. Operand 10477 states and 21120 transitions. [2023-12-02 12:52:06,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 12:52:06,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:52:06,568 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] [2023-12-02 12:52:06,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 12:52:06,568 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:52:06,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:52:06,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1940054933, now seen corresponding path program 1 times [2023-12-02 12:52:06,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:52:06,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500855418] [2023-12-02 12:52:06,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:52:06,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:52:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:52:06,925 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 12:52:06,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:52:06,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500855418] [2023-12-02 12:52:06,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500855418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:52:06,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:52:06,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:52:06,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053095421] [2023-12-02 12:52:06,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:52:06,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:52:06,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:52:06,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:52:06,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:52:06,929 INFO L87 Difference]: Start difference. First operand 10477 states and 21120 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 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 12:52:07,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:52:07,626 INFO L93 Difference]: Finished difference Result 12920 states and 26037 transitions. [2023-12-02 12:52:07,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:52:07,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2023-12-02 12:52:07,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:52:07,666 INFO L225 Difference]: With dead ends: 12920 [2023-12-02 12:52:07,667 INFO L226 Difference]: Without dead ends: 12920 [2023-12-02 12:52:07,667 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 12:52:07,668 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 280 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:52:07,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 722 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 12:52:07,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12920 states. [2023-12-02 12:52:07,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12920 to 11077. [2023-12-02 12:52:07,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11077 states, 10985 states have (on average 2.032589895311789) internal successors, (22328), 11076 states have internal predecessors, (22328), 0 states have call successors, (0), 0 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 12:52:08,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11077 states to 11077 states and 22328 transitions. [2023-12-02 12:52:08,028 INFO L78 Accepts]: Start accepts. Automaton has 11077 states and 22328 transitions. Word has length 59 [2023-12-02 12:52:08,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:52:08,028 INFO L495 AbstractCegarLoop]: Abstraction has 11077 states and 22328 transitions. [2023-12-02 12:52:08,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 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 12:52:08,029 INFO L276 IsEmpty]: Start isEmpty. Operand 11077 states and 22328 transitions. [2023-12-02 12:52:08,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 12:52:08,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:52:08,033 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 12:52:08,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 12:52:08,033 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:52:08,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:52:08,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1854149741, now seen corresponding path program 1 times [2023-12-02 12:52:08,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:52:08,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905663661] [2023-12-02 12:52:08,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:52:08,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:52:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:52:08,406 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 12:52:08,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:52:08,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905663661] [2023-12-02 12:52:08,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905663661] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:52:08,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:52:08,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:52:08,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001378273] [2023-12-02 12:52:08,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:52:08,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:52:08,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:52:08,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:52:08,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:52:08,408 INFO L87 Difference]: Start difference. First operand 11077 states and 22328 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 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 12:52:09,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:52:09,349 INFO L93 Difference]: Finished difference Result 15747 states and 31824 transitions. [2023-12-02 12:52:09,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:52:09,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 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 12:52:09,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:52:09,395 INFO L225 Difference]: With dead ends: 15747 [2023-12-02 12:52:09,395 INFO L226 Difference]: Without dead ends: 15747 [2023-12-02 12:52:09,395 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 12:52:09,397 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 404 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 12:52:09,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 1260 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 12:52:09,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15747 states. [2023-12-02 12:52:09,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15747 to 12424. [2023-12-02 12:52:09,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12424 states, 12338 states have (on average 2.0290160479818447) internal successors, (25034), 12423 states have internal predecessors, (25034), 0 states have call successors, (0), 0 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 12:52:09,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12424 states to 12424 states and 25034 transitions. [2023-12-02 12:52:09,743 INFO L78 Accepts]: Start accepts. Automaton has 12424 states and 25034 transitions. Word has length 61 [2023-12-02 12:52:09,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:52:09,743 INFO L495 AbstractCegarLoop]: Abstraction has 12424 states and 25034 transitions. [2023-12-02 12:52:09,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 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 12:52:09,744 INFO L276 IsEmpty]: Start isEmpty. Operand 12424 states and 25034 transitions. [2023-12-02 12:52:09,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 12:52:09,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:52:09,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:52:09,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 12:52:09,746 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:52:09,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:52:09,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1321852585, now seen corresponding path program 1 times [2023-12-02 12:52:09,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:52:09,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623577723] [2023-12-02 12:52:09,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:52:09,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:52:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:52:09,815 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 12:52:09,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:52:09,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623577723] [2023-12-02 12:52:09,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623577723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:52:09,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:52:09,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:52:09,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264539299] [2023-12-02 12:52:09,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:52:09,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:52:09,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:52:09,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:52:09,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:52:09,818 INFO L87 Difference]: Start difference. First operand 12424 states and 25034 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 12:52:09,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:52:09,906 INFO L93 Difference]: Finished difference Result 21573 states and 43527 transitions. [2023-12-02 12:52:09,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:52:09,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-12-02 12:52:09,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:52:09,960 INFO L225 Difference]: With dead ends: 21573 [2023-12-02 12:52:09,960 INFO L226 Difference]: Without dead ends: 21573 [2023-12-02 12:52:09,960 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 12:52:09,961 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 186 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:52:09,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 611 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:52:10,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21573 states. [2023-12-02 12:52:10,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21573 to 12545. [2023-12-02 12:52:10,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12545 states, 12459 states have (on average 2.0288145115980414) internal successors, (25277), 12544 states have internal predecessors, (25277), 0 states have call successors, (0), 0 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 12:52:10,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12545 states to 12545 states and 25277 transitions. [2023-12-02 12:52:10,342 INFO L78 Accepts]: Start accepts. Automaton has 12545 states and 25277 transitions. Word has length 63 [2023-12-02 12:52:10,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:52:10,343 INFO L495 AbstractCegarLoop]: Abstraction has 12545 states and 25277 transitions. [2023-12-02 12:52:10,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 12:52:10,343 INFO L276 IsEmpty]: Start isEmpty. Operand 12545 states and 25277 transitions. [2023-12-02 12:52:10,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 12:52:10,345 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:52:10,345 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] [2023-12-02 12:52:10,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 12:52:10,346 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:52:10,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:52:10,347 INFO L85 PathProgramCache]: Analyzing trace with hash 416682451, now seen corresponding path program 1 times [2023-12-02 12:52:10,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:52:10,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393038964] [2023-12-02 12:52:10,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:52:10,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:52:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:52:10,805 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 12:52:10,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:52:10,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393038964] [2023-12-02 12:52:10,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393038964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:52:10,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:52:10,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:52:10,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279931419] [2023-12-02 12:52:10,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:52:10,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:52:10,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:52:10,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:52:10,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:52:10,808 INFO L87 Difference]: Start difference. First operand 12545 states and 25277 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 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 12:52:11,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:52:11,488 INFO L93 Difference]: Finished difference Result 13824 states and 27852 transitions. [2023-12-02 12:52:11,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:52:11,489 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2023-12-02 12:52:11,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:52:11,522 INFO L225 Difference]: With dead ends: 13824 [2023-12-02 12:52:11,522 INFO L226 Difference]: Without dead ends: 13807 [2023-12-02 12:52:11,522 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 12:52:11,523 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 262 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:52:11,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 833 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 12:52:11,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13807 states. [2023-12-02 12:52:11,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13807 to 13072. [2023-12-02 12:52:11,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13072 states, 12992 states have (on average 2.027170566502463) internal successors, (26337), 13071 states have internal predecessors, (26337), 0 states have call successors, (0), 0 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 12:52:11,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13072 states to 13072 states and 26337 transitions. [2023-12-02 12:52:11,851 INFO L78 Accepts]: Start accepts. Automaton has 13072 states and 26337 transitions. Word has length 65 [2023-12-02 12:52:11,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:52:11,852 INFO L495 AbstractCegarLoop]: Abstraction has 13072 states and 26337 transitions. [2023-12-02 12:52:11,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 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 12:52:11,852 INFO L276 IsEmpty]: Start isEmpty. Operand 13072 states and 26337 transitions. [2023-12-02 12:52:11,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 12:52:11,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:52:11,854 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] [2023-12-02 12:52:11,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 12:52:11,855 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:52:11,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:52:11,855 INFO L85 PathProgramCache]: Analyzing trace with hash -760121077, now seen corresponding path program 1 times [2023-12-02 12:52:11,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:52:11,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576511419] [2023-12-02 12:52:11,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:52:11,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:52:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:52:12,184 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 12:52:12,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:52:12,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576511419] [2023-12-02 12:52:12,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576511419] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:52:12,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:52:12,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:52:12,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112084048] [2023-12-02 12:52:12,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:52:12,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:52:12,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:52:12,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:52:12,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:52:12,187 INFO L87 Difference]: Start difference. First operand 13072 states and 26337 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 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 12:52:12,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:52:12,890 INFO L93 Difference]: Finished difference Result 16628 states and 33592 transitions. [2023-12-02 12:52:12,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:52:12,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2023-12-02 12:52:12,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:52:12,921 INFO L225 Difference]: With dead ends: 16628 [2023-12-02 12:52:12,921 INFO L226 Difference]: Without dead ends: 16628 [2023-12-02 12:52:12,922 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 12:52:12,923 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 410 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:52:12,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1055 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 12:52:12,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16628 states. [2023-12-02 12:52:13,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16628 to 13503. [2023-12-02 12:52:13,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13503 states, 13427 states have (on average 2.0259924033663514) internal successors, (27203), 13502 states have internal predecessors, (27203), 0 states have call successors, (0), 0 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 12:52:13,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 27203 transitions. [2023-12-02 12:52:13,260 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 27203 transitions. Word has length 67 [2023-12-02 12:52:13,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:52:13,261 INFO L495 AbstractCegarLoop]: Abstraction has 13503 states and 27203 transitions. [2023-12-02 12:52:13,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 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 12:52:13,261 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 27203 transitions. [2023-12-02 12:52:13,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 12:52:13,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:52:13,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:52:13,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 12:52:13,265 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reader_fnErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:52:13,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:52:13,266 INFO L85 PathProgramCache]: Analyzing trace with hash 352884806, now seen corresponding path program 1 times [2023-12-02 12:52:13,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:52:13,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200638021] [2023-12-02 12:52:13,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:52:13,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:52:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:52:13,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:52:13,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:52:13,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200638021] [2023-12-02 12:52:13,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200638021] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:52:13,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:52:13,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:52:13,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086173614] [2023-12-02 12:52:13,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:52:13,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:52:13,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:52:13,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:52:13,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:52:13,642 INFO L87 Difference]: Start difference. First operand 13503 states and 27203 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 12:52:14,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:52:14,258 INFO L93 Difference]: Finished difference Result 15343 states and 30909 transitions. [2023-12-02 12:52:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:52:14,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2023-12-02 12:52:14,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:52:14,277 INFO L225 Difference]: With dead ends: 15343 [2023-12-02 12:52:14,277 INFO L226 Difference]: Without dead ends: 15343 [2023-12-02 12:52:14,277 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 12:52:14,278 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 254 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 12:52:14,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 872 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 12:52:14,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15343 states. [2023-12-02 12:52:14,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15343 to 14029. [2023-12-02 12:52:14,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14029 states, 13961 states have (on average 2.024425184442375) internal successors, (28263), 14028 states have internal predecessors, (28263), 0 states have call successors, (0), 0 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 12:52:14,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14029 states to 14029 states and 28263 transitions. [2023-12-02 12:52:14,453 INFO L78 Accepts]: Start accepts. Automaton has 14029 states and 28263 transitions. Word has length 83 [2023-12-02 12:52:14,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:52:14,453 INFO L495 AbstractCegarLoop]: Abstraction has 14029 states and 28263 transitions. [2023-12-02 12:52:14,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 12:52:14,454 INFO L276 IsEmpty]: Start isEmpty. Operand 14029 states and 28263 transitions. [2023-12-02 12:52:14,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 12:52:14,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:52:14,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:52:14,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 12:52:14,457 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:52:14,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:52:14,458 INFO L85 PathProgramCache]: Analyzing trace with hash -254640781, now seen corresponding path program 1 times [2023-12-02 12:52:14,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:52:14,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504489388] [2023-12-02 12:52:14,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:52:14,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:52:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:52:14,863 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 12:52:14,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:52:14,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504489388] [2023-12-02 12:52:14,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504489388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:52:14,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:52:14,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:52:14,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250730956] [2023-12-02 12:52:14,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:52:14,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:52:14,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:52:14,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:52:14,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:52:14,867 INFO L87 Difference]: Start difference. First operand 14029 states and 28263 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 12:52:15,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:52:15,429 INFO L93 Difference]: Finished difference Result 14626 states and 29462 transitions. [2023-12-02 12:52:15,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:52:15,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2023-12-02 12:52:15,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:52:15,452 INFO L225 Difference]: With dead ends: 14626 [2023-12-02 12:52:15,452 INFO L226 Difference]: Without dead ends: 14626 [2023-12-02 12:52:15,452 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 12:52:15,453 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 371 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 12:52:15,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 989 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 12:52:15,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14626 states. [2023-12-02 12:52:15,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14626 to 14490. [2023-12-02 12:52:15,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14490 states, 14422 states have (on average 2.023921786160033) internal successors, (29189), 14489 states have internal predecessors, (29189), 0 states have call successors, (0), 0 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 12:52:15,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14490 states to 14490 states and 29189 transitions. [2023-12-02 12:52:15,712 INFO L78 Accepts]: Start accepts. Automaton has 14490 states and 29189 transitions. Word has length 83 [2023-12-02 12:52:15,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:52:15,712 INFO L495 AbstractCegarLoop]: Abstraction has 14490 states and 29189 transitions. [2023-12-02 12:52:15,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 12:52:15,713 INFO L276 IsEmpty]: Start isEmpty. Operand 14490 states and 29189 transitions. [2023-12-02 12:52:15,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 12:52:15,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:52:15,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:52:15,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 12:52:15,721 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reader_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:52:15,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:52:15,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1854717066, now seen corresponding path program 1 times [2023-12-02 12:52:15,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:52:15,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516421902] [2023-12-02 12:52:15,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:52:15,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:52:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:52:16,233 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 12:52:16,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:52:16,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516421902] [2023-12-02 12:52:16,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516421902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:52:16,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:52:16,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:52:16,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027434645] [2023-12-02 12:52:16,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:52:16,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:52:16,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:52:16,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:52:16,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:52:16,236 INFO L87 Difference]: Start difference. First operand 14490 states and 29189 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 12:52:16,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:52:16,863 INFO L93 Difference]: Finished difference Result 14904 states and 30023 transitions. [2023-12-02 12:52:16,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:52:16,864 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-02 12:52:16,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:52:16,886 INFO L225 Difference]: With dead ends: 14904 [2023-12-02 12:52:16,886 INFO L226 Difference]: Without dead ends: 14904 [2023-12-02 12:52:16,886 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 12:52:16,887 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 238 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 12:52:16,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 841 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 12:52:16,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14904 states. [2023-12-02 12:52:17,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14904 to 14752. [2023-12-02 12:52:17,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14752 states, 14688 states have (on average 2.023216230936819) internal successors, (29717), 14751 states have internal predecessors, (29717), 0 states have call successors, (0), 0 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 12:52:17,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14752 states to 14752 states and 29717 transitions. [2023-12-02 12:52:17,146 INFO L78 Accepts]: Start accepts. Automaton has 14752 states and 29717 transitions. Word has length 89 [2023-12-02 12:52:17,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:52:17,147 INFO L495 AbstractCegarLoop]: Abstraction has 14752 states and 29717 transitions. [2023-12-02 12:52:17,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 12:52:17,147 INFO L276 IsEmpty]: Start isEmpty. Operand 14752 states and 29717 transitions. [2023-12-02 12:52:17,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:52:17,153 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:52:17,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:52:17,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 12:52:17,153 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:52:17,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:52:17,154 INFO L85 PathProgramCache]: Analyzing trace with hash -567015673, now seen corresponding path program 1 times [2023-12-02 12:52:17,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:52:17,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548229613] [2023-12-02 12:52:17,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:52:17,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:52:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:52:19,730 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 12:52:19,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:52:19,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548229613] [2023-12-02 12:52:19,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548229613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:52:19,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:52:19,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-12-02 12:52:19,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973474922] [2023-12-02 12:52:19,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:52:19,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-02 12:52:19,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:52:19,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-02 12:52:19,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2023-12-02 12:52:19,733 INFO L87 Difference]: Start difference. First operand 14752 states and 29717 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:52:28,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:52:28,736 INFO L93 Difference]: Finished difference Result 35509 states and 71518 transitions. [2023-12-02 12:52:28,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-02 12:52:28,736 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:52:28,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:52:28,790 INFO L225 Difference]: With dead ends: 35509 [2023-12-02 12:52:28,790 INFO L226 Difference]: Without dead ends: 35505 [2023-12-02 12:52:28,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 487 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=824, Invalid=2598, Unknown=0, NotChecked=0, Total=3422 [2023-12-02 12:52:28,792 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 4051 mSDsluCounter, 7418 mSDsCounter, 0 mSdLazyCounter, 6834 mSolverCounterSat, 300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4051 SdHoareTripleChecker+Valid, 7996 SdHoareTripleChecker+Invalid, 7134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Valid, 6834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-02 12:52:28,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4051 Valid, 7996 Invalid, 7134 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [300 Valid, 6834 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-02 12:52:28,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35505 states. [2023-12-02 12:52:29,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35505 to 17197. [2023-12-02 12:52:29,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17197 states, 17133 states have (on average 2.039456020545147) internal successors, (34942), 17196 states have internal predecessors, (34942), 0 states have call successors, (0), 0 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 12:52:29,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17197 states to 17197 states and 34942 transitions. [2023-12-02 12:52:29,090 INFO L78 Accepts]: Start accepts. Automaton has 17197 states and 34942 transitions. Word has length 96 [2023-12-02 12:52:29,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:52:29,090 INFO L495 AbstractCegarLoop]: Abstraction has 17197 states and 34942 transitions. [2023-12-02 12:52:29,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:52:29,091 INFO L276 IsEmpty]: Start isEmpty. Operand 17197 states and 34942 transitions. [2023-12-02 12:52:29,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:52:29,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:52:29,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:52:29,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 12:52:29,097 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:52:29,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:52:29,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1265992322, now seen corresponding path program 1 times [2023-12-02 12:52:29,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:52:29,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092738677] [2023-12-02 12:52:29,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:52:29,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:52:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:52:30,741 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 12:52:30,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:52:30,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092738677] [2023-12-02 12:52:30,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092738677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:52:30,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:52:30,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 12:52:30,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267777730] [2023-12-02 12:52:30,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:52:30,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 12:52:30,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:52:30,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 12:52:30,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2023-12-02 12:52:30,743 INFO L87 Difference]: Start difference. First operand 17197 states and 34942 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:52:39,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:52:39,414 INFO L93 Difference]: Finished difference Result 32559 states and 65679 transitions. [2023-12-02 12:52:39,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-02 12:52:39,415 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:52:39,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:52:39,461 INFO L225 Difference]: With dead ends: 32559 [2023-12-02 12:52:39,461 INFO L226 Difference]: Without dead ends: 32559 [2023-12-02 12:52:39,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 709 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=997, Invalid=3293, Unknown=0, NotChecked=0, Total=4290 [2023-12-02 12:52:39,463 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 3515 mSDsluCounter, 9068 mSDsCounter, 0 mSdLazyCounter, 7594 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3515 SdHoareTripleChecker+Valid, 9813 SdHoareTripleChecker+Invalid, 7734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 7594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-02 12:52:39,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3515 Valid, 9813 Invalid, 7734 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [140 Valid, 7594 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-02 12:52:39,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32559 states. [2023-12-02 12:52:39,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32559 to 17747. [2023-12-02 12:52:39,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17747 states, 17683 states have (on average 2.0399819035231577) internal successors, (36073), 17746 states have internal predecessors, (36073), 0 states have call successors, (0), 0 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 12:52:39,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17747 states to 17747 states and 36073 transitions. [2023-12-02 12:52:39,759 INFO L78 Accepts]: Start accepts. Automaton has 17747 states and 36073 transitions. Word has length 96 [2023-12-02 12:52:39,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:52:39,760 INFO L495 AbstractCegarLoop]: Abstraction has 17747 states and 36073 transitions. [2023-12-02 12:52:39,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:52:39,760 INFO L276 IsEmpty]: Start isEmpty. Operand 17747 states and 36073 transitions. [2023-12-02 12:52:39,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:52:39,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:52:39,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:52:39,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 12:52:39,767 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:52:39,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:52:39,767 INFO L85 PathProgramCache]: Analyzing trace with hash -2068384813, now seen corresponding path program 2 times [2023-12-02 12:52:39,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:52:39,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388789874] [2023-12-02 12:52:39,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:52:39,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:52:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:52:41,772 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 12:52:41,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:52:41,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388789874] [2023-12-02 12:52:41,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388789874] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:52:41,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:52:41,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-12-02 12:52:41,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536249005] [2023-12-02 12:52:41,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:52:41,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-02 12:52:41,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:52:41,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-02 12:52:41,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2023-12-02 12:52:41,774 INFO L87 Difference]: Start difference. First operand 17747 states and 36073 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:52:50,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:52:50,705 INFO L93 Difference]: Finished difference Result 42553 states and 86308 transitions. [2023-12-02 12:52:50,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-02 12:52:50,706 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:52:50,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:52:50,766 INFO L225 Difference]: With dead ends: 42553 [2023-12-02 12:52:50,767 INFO L226 Difference]: Without dead ends: 42549 [2023-12-02 12:52:50,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=861, Invalid=2679, Unknown=0, NotChecked=0, Total=3540 [2023-12-02 12:52:50,768 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 3829 mSDsluCounter, 7341 mSDsCounter, 0 mSdLazyCounter, 7351 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3829 SdHoareTripleChecker+Valid, 7963 SdHoareTripleChecker+Invalid, 7638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 7351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:52:50,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3829 Valid, 7963 Invalid, 7638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 7351 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-02 12:52:50,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42549 states. [2023-12-02 12:52:51,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42549 to 19504. [2023-12-02 12:52:51,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19504 states, 19440 states have (on average 2.0474279835390945) internal successors, (39802), 19503 states have internal predecessors, (39802), 0 states have call successors, (0), 0 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 12:52:51,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19504 states to 19504 states and 39802 transitions. [2023-12-02 12:52:51,127 INFO L78 Accepts]: Start accepts. Automaton has 19504 states and 39802 transitions. Word has length 96 [2023-12-02 12:52:51,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:52:51,127 INFO L495 AbstractCegarLoop]: Abstraction has 19504 states and 39802 transitions. [2023-12-02 12:52:51,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:52:51,127 INFO L276 IsEmpty]: Start isEmpty. Operand 19504 states and 39802 transitions. [2023-12-02 12:52:51,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:52:51,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:52:51,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:52:51,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 12:52:51,134 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:52:51,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:52:51,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1022889922, now seen corresponding path program 2 times [2023-12-02 12:52:51,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:52:51,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344248694] [2023-12-02 12:52:51,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:52:51,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:52:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:52:52,585 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 12:52:52,586 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:52:52,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344248694] [2023-12-02 12:52:52,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344248694] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:52:52,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:52:52,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 12:52:52,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012272681] [2023-12-02 12:52:52,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:52:52,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 12:52:52,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:52:52,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 12:52:52,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2023-12-02 12:52:52,588 INFO L87 Difference]: Start difference. First operand 19504 states and 39802 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:53:00,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:53:00,937 INFO L93 Difference]: Finished difference Result 37765 states and 76621 transitions. [2023-12-02 12:53:00,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-02 12:53:00,938 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:53:00,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:53:00,988 INFO L225 Difference]: With dead ends: 37765 [2023-12-02 12:53:00,988 INFO L226 Difference]: Without dead ends: 37765 [2023-12-02 12:53:00,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=997, Invalid=3293, Unknown=0, NotChecked=0, Total=4290 [2023-12-02 12:53:00,990 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 3830 mSDsluCounter, 8670 mSDsCounter, 0 mSdLazyCounter, 7416 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3830 SdHoareTripleChecker+Valid, 9477 SdHoareTripleChecker+Invalid, 7516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 7416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-02 12:53:00,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3830 Valid, 9477 Invalid, 7516 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [100 Valid, 7416 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-02 12:53:01,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37765 states. [2023-12-02 12:53:01,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37765 to 19612. [2023-12-02 12:53:01,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19612 states, 19548 states have (on average 2.0468590137098426) internal successors, (40012), 19611 states have internal predecessors, (40012), 0 states have call successors, (0), 0 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 12:53:01,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19612 states to 19612 states and 40012 transitions. [2023-12-02 12:53:01,320 INFO L78 Accepts]: Start accepts. Automaton has 19612 states and 40012 transitions. Word has length 96 [2023-12-02 12:53:01,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:53:01,321 INFO L495 AbstractCegarLoop]: Abstraction has 19612 states and 40012 transitions. [2023-12-02 12:53:01,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:53:01,321 INFO L276 IsEmpty]: Start isEmpty. Operand 19612 states and 40012 transitions. [2023-12-02 12:53:01,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:53:01,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:53:01,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:53:01,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 12:53:01,328 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:53:01,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:53:01,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1345265345, now seen corresponding path program 3 times [2023-12-02 12:53:01,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:53:01,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441296599] [2023-12-02 12:53:01,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:53:01,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:53:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:53:03,144 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 12:53:03,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:53:03,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441296599] [2023-12-02 12:53:03,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441296599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:53:03,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:53:03,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-12-02 12:53:03,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791737644] [2023-12-02 12:53:03,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:53:03,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-02 12:53:03,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:53:03,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-02 12:53:03,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2023-12-02 12:53:03,146 INFO L87 Difference]: Start difference. First operand 19612 states and 40012 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:53:12,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:53:12,026 INFO L93 Difference]: Finished difference Result 45438 states and 92355 transitions. [2023-12-02 12:53:12,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-02 12:53:12,026 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:53:12,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:53:12,088 INFO L225 Difference]: With dead ends: 45438 [2023-12-02 12:53:12,088 INFO L226 Difference]: Without dead ends: 45434 [2023-12-02 12:53:12,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=861, Invalid=2679, Unknown=0, NotChecked=0, Total=3540 [2023-12-02 12:53:12,090 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 3892 mSDsluCounter, 7584 mSDsCounter, 0 mSdLazyCounter, 7424 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3892 SdHoareTripleChecker+Valid, 8207 SdHoareTripleChecker+Invalid, 7697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 7424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:53:12,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3892 Valid, 8207 Invalid, 7697 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [273 Valid, 7424 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-02 12:53:12,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45434 states. [2023-12-02 12:53:12,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45434 to 21608. [2023-12-02 12:53:12,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21608 states, 21544 states have (on average 2.0537504641663573) internal successors, (44246), 21607 states have internal predecessors, (44246), 0 states have call successors, (0), 0 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 12:53:12,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21608 states to 21608 states and 44246 transitions. [2023-12-02 12:53:12,467 INFO L78 Accepts]: Start accepts. Automaton has 21608 states and 44246 transitions. Word has length 96 [2023-12-02 12:53:12,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:53:12,468 INFO L495 AbstractCegarLoop]: Abstraction has 21608 states and 44246 transitions. [2023-12-02 12:53:12,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:53:12,468 INFO L276 IsEmpty]: Start isEmpty. Operand 21608 states and 44246 transitions. [2023-12-02 12:53:12,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:53:12,476 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:53:12,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:53:12,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 12:53:12,476 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:53:12,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:53:12,476 INFO L85 PathProgramCache]: Analyzing trace with hash -734359294, now seen corresponding path program 3 times [2023-12-02 12:53:12,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:53:12,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756485481] [2023-12-02 12:53:12,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:53:12,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:53:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:53:13,832 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 12:53:13,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:53:13,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756485481] [2023-12-02 12:53:13,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756485481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:53:13,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:53:13,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 12:53:13,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553422332] [2023-12-02 12:53:13,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:53:13,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 12:53:13,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:53:13,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 12:53:13,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2023-12-02 12:53:13,835 INFO L87 Difference]: Start difference. First operand 21608 states and 44246 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:53:22,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:53:22,075 INFO L93 Difference]: Finished difference Result 40198 states and 81721 transitions. [2023-12-02 12:53:22,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-02 12:53:22,076 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:53:22,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:53:22,130 INFO L225 Difference]: With dead ends: 40198 [2023-12-02 12:53:22,130 INFO L226 Difference]: Without dead ends: 40198 [2023-12-02 12:53:22,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1005, Invalid=3285, Unknown=0, NotChecked=0, Total=4290 [2023-12-02 12:53:22,131 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 3472 mSDsluCounter, 9777 mSDsCounter, 0 mSdLazyCounter, 7353 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3472 SdHoareTripleChecker+Valid, 10596 SdHoareTripleChecker+Invalid, 7475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 7353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:53:22,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3472 Valid, 10596 Invalid, 7475 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [122 Valid, 7353 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-02 12:53:22,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40198 states. [2023-12-02 12:53:22,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40198 to 21443. [2023-12-02 12:53:22,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21443 states, 21379 states have (on average 2.0536040039290895) internal successors, (43904), 21442 states have internal predecessors, (43904), 0 states have call successors, (0), 0 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 12:53:22,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21443 states to 21443 states and 43904 transitions. [2023-12-02 12:53:22,483 INFO L78 Accepts]: Start accepts. Automaton has 21443 states and 43904 transitions. Word has length 96 [2023-12-02 12:53:22,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:53:22,483 INFO L495 AbstractCegarLoop]: Abstraction has 21443 states and 43904 transitions. [2023-12-02 12:53:22,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:53:22,483 INFO L276 IsEmpty]: Start isEmpty. Operand 21443 states and 43904 transitions. [2023-12-02 12:53:22,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:53:22,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:53:22,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:53:22,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-02 12:53:22,491 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:53:22,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:53:22,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1142358419, now seen corresponding path program 4 times [2023-12-02 12:53:22,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:53:22,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69833179] [2023-12-02 12:53:22,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:53:22,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:53:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:53:24,145 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 12:53:24,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:53:24,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69833179] [2023-12-02 12:53:24,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69833179] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:53:24,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:53:24,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-12-02 12:53:24,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052251958] [2023-12-02 12:53:24,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:53:24,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-02 12:53:24,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:53:24,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-02 12:53:24,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2023-12-02 12:53:24,148 INFO L87 Difference]: Start difference. First operand 21443 states and 43904 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:53:32,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:53:32,174 INFO L93 Difference]: Finished difference Result 47258 states and 96343 transitions. [2023-12-02 12:53:32,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-02 12:53:32,175 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:53:32,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:53:32,238 INFO L225 Difference]: With dead ends: 47258 [2023-12-02 12:53:32,239 INFO L226 Difference]: Without dead ends: 47258 [2023-12-02 12:53:32,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=852, Invalid=2688, Unknown=0, NotChecked=0, Total=3540 [2023-12-02 12:53:32,240 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 4207 mSDsluCounter, 7628 mSDsCounter, 0 mSdLazyCounter, 6469 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4207 SdHoareTripleChecker+Valid, 8291 SdHoareTripleChecker+Invalid, 6762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 6469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-02 12:53:32,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4207 Valid, 8291 Invalid, 6762 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [293 Valid, 6469 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-02 12:53:32,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47258 states. [2023-12-02 12:53:32,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47258 to 23398. [2023-12-02 12:53:32,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23398 states, 23334 states have (on average 2.0595697265792405) internal successors, (48058), 23397 states have internal predecessors, (48058), 0 states have call successors, (0), 0 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 12:53:32,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23398 states to 23398 states and 48058 transitions. [2023-12-02 12:53:32,638 INFO L78 Accepts]: Start accepts. Automaton has 23398 states and 48058 transitions. Word has length 96 [2023-12-02 12:53:32,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:53:32,639 INFO L495 AbstractCegarLoop]: Abstraction has 23398 states and 48058 transitions. [2023-12-02 12:53:32,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:53:32,639 INFO L276 IsEmpty]: Start isEmpty. Operand 23398 states and 48058 transitions. [2023-12-02 12:53:32,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:53:32,648 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:53:32,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:53:32,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 12:53:32,648 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:53:32,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:53:32,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1776529154, now seen corresponding path program 4 times [2023-12-02 12:53:32,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:53:32,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001303503] [2023-12-02 12:53:32,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:53:32,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:53:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:53:33,892 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 12:53:33,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:53:33,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001303503] [2023-12-02 12:53:33,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001303503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:53:33,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:53:33,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 12:53:33,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292683986] [2023-12-02 12:53:33,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:53:33,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 12:53:33,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:53:33,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 12:53:33,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2023-12-02 12:53:33,894 INFO L87 Difference]: Start difference. First operand 23398 states and 48058 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:53:41,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:53:41,579 INFO L93 Difference]: Finished difference Result 41800 states and 85218 transitions. [2023-12-02 12:53:41,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-02 12:53:41,580 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:53:41,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:53:41,637 INFO L225 Difference]: With dead ends: 41800 [2023-12-02 12:53:41,637 INFO L226 Difference]: Without dead ends: 41800 [2023-12-02 12:53:41,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=991, Invalid=3299, Unknown=0, NotChecked=0, Total=4290 [2023-12-02 12:53:41,639 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 3336 mSDsluCounter, 8524 mSDsCounter, 0 mSdLazyCounter, 6162 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3336 SdHoareTripleChecker+Valid, 9364 SdHoareTripleChecker+Invalid, 6203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 6162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:53:41,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3336 Valid, 9364 Invalid, 6203 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 6162 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-02 12:53:41,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41800 states. [2023-12-02 12:53:42,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41800 to 23396. [2023-12-02 12:53:42,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23396 states, 23332 states have (on average 2.0595748328475914) internal successors, (48054), 23395 states have internal predecessors, (48054), 0 states have call successors, (0), 0 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 12:53:42,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23396 states to 23396 states and 48054 transitions. [2023-12-02 12:53:42,064 INFO L78 Accepts]: Start accepts. Automaton has 23396 states and 48054 transitions. Word has length 96 [2023-12-02 12:53:42,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:53:42,064 INFO L495 AbstractCegarLoop]: Abstraction has 23396 states and 48054 transitions. [2023-12-02 12:53:42,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:53:42,065 INFO L276 IsEmpty]: Start isEmpty. Operand 23396 states and 48054 transitions. [2023-12-02 12:53:42,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:53:42,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:53:42,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:53:42,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 12:53:42,074 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:53:42,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:53:42,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1579014824, now seen corresponding path program 5 times [2023-12-02 12:53:42,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:53:42,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317624904] [2023-12-02 12:53:42,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:53:42,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:53:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:53:43,460 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 12:53:43,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:53:43,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317624904] [2023-12-02 12:53:43,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317624904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:53:43,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:53:43,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 12:53:43,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533986764] [2023-12-02 12:53:43,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:53:43,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 12:53:43,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:53:43,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 12:53:43,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2023-12-02 12:53:43,462 INFO L87 Difference]: Start difference. First operand 23396 states and 48054 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:53:52,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:53:52,207 INFO L93 Difference]: Finished difference Result 41760 states and 85137 transitions. [2023-12-02 12:53:52,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-02 12:53:52,208 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:53:52,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:53:52,326 INFO L225 Difference]: With dead ends: 41760 [2023-12-02 12:53:52,326 INFO L226 Difference]: Without dead ends: 41760 [2023-12-02 12:53:52,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=876, Invalid=3030, Unknown=0, NotChecked=0, Total=3906 [2023-12-02 12:53:52,329 INFO L413 NwaCegarLoop]: 814 mSDtfsCounter, 3425 mSDsluCounter, 9405 mSDsCounter, 0 mSdLazyCounter, 8121 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3425 SdHoareTripleChecker+Valid, 10219 SdHoareTripleChecker+Invalid, 8158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 8121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:53:52,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3425 Valid, 10219 Invalid, 8158 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [37 Valid, 8121 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-12-02 12:53:52,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41760 states. [2023-12-02 12:53:52,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41760 to 23394. [2023-12-02 12:53:52,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23394 states, 23330 states have (on average 2.059579939991427) internal successors, (48050), 23393 states have internal predecessors, (48050), 0 states have call successors, (0), 0 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 12:53:52,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23394 states to 23394 states and 48050 transitions. [2023-12-02 12:53:52,683 INFO L78 Accepts]: Start accepts. Automaton has 23394 states and 48050 transitions. Word has length 96 [2023-12-02 12:53:52,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:53:52,683 INFO L495 AbstractCegarLoop]: Abstraction has 23394 states and 48050 transitions. [2023-12-02 12:53:52,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:53:52,683 INFO L276 IsEmpty]: Start isEmpty. Operand 23394 states and 48050 transitions. [2023-12-02 12:53:52,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:53:52,692 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:53:52,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:53:52,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-02 12:53:52,692 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:53:52,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:53:52,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1575584054, now seen corresponding path program 6 times [2023-12-02 12:53:52,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:53:52,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109022052] [2023-12-02 12:53:52,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:53:52,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:53:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:53:54,359 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 12:53:54,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:53:54,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109022052] [2023-12-02 12:53:54,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109022052] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:53:54,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:53:54,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 12:53:54,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655182045] [2023-12-02 12:53:54,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:53:54,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 12:53:54,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:53:54,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 12:53:54,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2023-12-02 12:53:54,361 INFO L87 Difference]: Start difference. First operand 23394 states and 48050 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:54:02,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:02,691 INFO L93 Difference]: Finished difference Result 41720 states and 85056 transitions. [2023-12-02 12:54:02,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-02 12:54:02,691 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:54:02,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:02,747 INFO L225 Difference]: With dead ends: 41720 [2023-12-02 12:54:02,748 INFO L226 Difference]: Without dead ends: 41720 [2023-12-02 12:54:02,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=775, Invalid=2765, Unknown=0, NotChecked=0, Total=3540 [2023-12-02 12:54:02,749 INFO L413 NwaCegarLoop]: 788 mSDtfsCounter, 3341 mSDsluCounter, 9104 mSDsCounter, 0 mSdLazyCounter, 7446 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3341 SdHoareTripleChecker+Valid, 9892 SdHoareTripleChecker+Invalid, 7481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 7446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:02,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3341 Valid, 9892 Invalid, 7481 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 7446 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-12-02 12:54:02,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41720 states. [2023-12-02 12:54:03,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41720 to 23392. [2023-12-02 12:54:03,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23392 states, 23328 states have (on average 2.059585048010974) internal successors, (48046), 23391 states have internal predecessors, (48046), 0 states have call successors, (0), 0 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 12:54:03,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23392 states to 23392 states and 48046 transitions. [2023-12-02 12:54:03,137 INFO L78 Accepts]: Start accepts. Automaton has 23392 states and 48046 transitions. Word has length 96 [2023-12-02 12:54:03,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:03,137 INFO L495 AbstractCegarLoop]: Abstraction has 23392 states and 48046 transitions. [2023-12-02 12:54:03,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:54:03,137 INFO L276 IsEmpty]: Start isEmpty. Operand 23392 states and 48046 transitions. [2023-12-02 12:54:03,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:54:03,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:03,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:03,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-02 12:54:03,147 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:54:03,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:03,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1575351554, now seen corresponding path program 7 times [2023-12-02 12:54:03,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:03,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070969297] [2023-12-02 12:54:03,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:03,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:05,088 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 12:54:05,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:05,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070969297] [2023-12-02 12:54:05,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070969297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:05,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:05,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 12:54:05,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679041538] [2023-12-02 12:54:05,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:05,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 12:54:05,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:05,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 12:54:05,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=681, Unknown=0, NotChecked=0, Total=756 [2023-12-02 12:54:05,091 INFO L87 Difference]: Start difference. First operand 23392 states and 48046 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:54:13,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:13,710 INFO L93 Difference]: Finished difference Result 41676 states and 84967 transitions. [2023-12-02 12:54:13,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 12:54:13,710 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:54:13,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:13,767 INFO L225 Difference]: With dead ends: 41676 [2023-12-02 12:54:13,767 INFO L226 Difference]: Without dead ends: 41676 [2023-12-02 12:54:13,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=688, Invalid=2504, Unknown=0, NotChecked=0, Total=3192 [2023-12-02 12:54:13,769 INFO L413 NwaCegarLoop]: 763 mSDtfsCounter, 3515 mSDsluCounter, 8500 mSDsCounter, 0 mSdLazyCounter, 7853 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3515 SdHoareTripleChecker+Valid, 9263 SdHoareTripleChecker+Invalid, 7889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 7853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:13,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3515 Valid, 9263 Invalid, 7889 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [36 Valid, 7853 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-12-02 12:54:13,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41676 states. [2023-12-02 12:54:14,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41676 to 23393. [2023-12-02 12:54:14,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23393 states, 23329 states have (on average 2.0595396287882037) internal successors, (48047), 23392 states have internal predecessors, (48047), 0 states have call successors, (0), 0 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 12:54:14,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23393 states to 23393 states and 48047 transitions. [2023-12-02 12:54:14,143 INFO L78 Accepts]: Start accepts. Automaton has 23393 states and 48047 transitions. Word has length 96 [2023-12-02 12:54:14,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:14,143 INFO L495 AbstractCegarLoop]: Abstraction has 23393 states and 48047 transitions. [2023-12-02 12:54:14,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:54:14,143 INFO L276 IsEmpty]: Start isEmpty. Operand 23393 states and 48047 transitions. [2023-12-02 12:54:14,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:54:14,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:14,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:14,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-02 12:54:14,150 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:54:14,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:14,150 INFO L85 PathProgramCache]: Analyzing trace with hash -280702095, now seen corresponding path program 5 times [2023-12-02 12:54:14,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:14,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349353363] [2023-12-02 12:54:14,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:14,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:15,765 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 12:54:15,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:15,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349353363] [2023-12-02 12:54:15,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349353363] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:15,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:15,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-12-02 12:54:15,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796931949] [2023-12-02 12:54:15,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:15,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-02 12:54:15,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:15,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-02 12:54:15,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2023-12-02 12:54:15,767 INFO L87 Difference]: Start difference. First operand 23393 states and 48047 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:54:23,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:23,204 INFO L93 Difference]: Finished difference Result 46274 states and 94443 transitions. [2023-12-02 12:54:23,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-02 12:54:23,204 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:54:23,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:23,267 INFO L225 Difference]: With dead ends: 46274 [2023-12-02 12:54:23,267 INFO L226 Difference]: Without dead ends: 46270 [2023-12-02 12:54:23,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=785, Invalid=2521, Unknown=0, NotChecked=0, Total=3306 [2023-12-02 12:54:23,268 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 3249 mSDsluCounter, 8792 mSDsCounter, 0 mSdLazyCounter, 6636 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3249 SdHoareTripleChecker+Valid, 9522 SdHoareTripleChecker+Invalid, 6839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 6636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:23,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3249 Valid, 9522 Invalid, 6839 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [203 Valid, 6636 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-02 12:54:23,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46270 states. [2023-12-02 12:54:23,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46270 to 25021. [2023-12-02 12:54:23,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25021 states, 24957 states have (on average 2.065833233161037) internal successors, (51557), 25020 states have internal predecessors, (51557), 0 states have call successors, (0), 0 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 12:54:23,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25021 states to 25021 states and 51557 transitions. [2023-12-02 12:54:23,693 INFO L78 Accepts]: Start accepts. Automaton has 25021 states and 51557 transitions. Word has length 96 [2023-12-02 12:54:23,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:23,693 INFO L495 AbstractCegarLoop]: Abstraction has 25021 states and 51557 transitions. [2023-12-02 12:54:23,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:54:23,693 INFO L276 IsEmpty]: Start isEmpty. Operand 25021 states and 51557 transitions. [2023-12-02 12:54:23,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:54:23,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:23,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:23,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-02 12:54:23,703 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:54:23,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:23,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1939782398, now seen corresponding path program 8 times [2023-12-02 12:54:23,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:23,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675368586] [2023-12-02 12:54:23,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:23,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:24,983 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 12:54:24,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:24,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675368586] [2023-12-02 12:54:24,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675368586] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:24,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:24,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 12:54:24,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425741335] [2023-12-02 12:54:24,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:24,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 12:54:24,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:24,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 12:54:24,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2023-12-02 12:54:24,985 INFO L87 Difference]: Start difference. First operand 25021 states and 51557 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:54:33,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:33,310 INFO L93 Difference]: Finished difference Result 45086 states and 92238 transitions. [2023-12-02 12:54:33,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-02 12:54:33,311 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:54:33,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:33,371 INFO L225 Difference]: With dead ends: 45086 [2023-12-02 12:54:33,371 INFO L226 Difference]: Without dead ends: 45086 [2023-12-02 12:54:33,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=991, Invalid=3299, Unknown=0, NotChecked=0, Total=4290 [2023-12-02 12:54:33,373 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 3614 mSDsluCounter, 9203 mSDsCounter, 0 mSdLazyCounter, 7228 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 10069 SdHoareTripleChecker+Invalid, 7268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 7228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:33,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3614 Valid, 10069 Invalid, 7268 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 7228 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-02 12:54:33,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45086 states. [2023-12-02 12:54:33,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45086 to 26426. [2023-12-02 12:54:33,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26426 states, 26362 states have (on average 2.0712768378726953) internal successors, (54603), 26425 states have internal predecessors, (54603), 0 states have call successors, (0), 0 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 12:54:33,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26426 states to 26426 states and 54603 transitions. [2023-12-02 12:54:33,800 INFO L78 Accepts]: Start accepts. Automaton has 26426 states and 54603 transitions. Word has length 96 [2023-12-02 12:54:33,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:33,800 INFO L495 AbstractCegarLoop]: Abstraction has 26426 states and 54603 transitions. [2023-12-02 12:54:33,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:54:33,801 INFO L276 IsEmpty]: Start isEmpty. Operand 26426 states and 54603 transitions. [2023-12-02 12:54:33,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:54:33,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:33,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:54:33,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-02 12:54:33,808 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:54:33,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:33,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1742268068, now seen corresponding path program 9 times [2023-12-02 12:54:33,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:33,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528790665] [2023-12-02 12:54:33,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:33,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:35,222 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 12:54:35,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:35,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528790665] [2023-12-02 12:54:35,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528790665] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:35,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:35,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 12:54:35,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111229521] [2023-12-02 12:54:35,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:35,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 12:54:35,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:35,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 12:54:35,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2023-12-02 12:54:35,225 INFO L87 Difference]: Start difference. First operand 26426 states and 54603 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:54:43,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:43,108 INFO L93 Difference]: Finished difference Result 45041 states and 92147 transitions. [2023-12-02 12:54:43,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-02 12:54:43,109 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:54:43,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:43,171 INFO L225 Difference]: With dead ends: 45041 [2023-12-02 12:54:43,171 INFO L226 Difference]: Without dead ends: 45041 [2023-12-02 12:54:43,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=876, Invalid=3030, Unknown=0, NotChecked=0, Total=3906 [2023-12-02 12:54:43,173 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 3467 mSDsluCounter, 10049 mSDsCounter, 0 mSdLazyCounter, 7062 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3467 SdHoareTripleChecker+Valid, 10889 SdHoareTripleChecker+Invalid, 7103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 7062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:43,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3467 Valid, 10889 Invalid, 7103 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 7062 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-02 12:54:43,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45041 states. [2023-12-02 12:54:43,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45041 to 26426. [2023-12-02 12:54:43,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26426 states, 26362 states have (on average 2.0712768378726953) internal successors, (54603), 26425 states have internal predecessors, (54603), 0 states have call successors, (0), 0 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 12:54:43,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26426 states to 26426 states and 54603 transitions. [2023-12-02 12:54:43,597 INFO L78 Accepts]: Start accepts. Automaton has 26426 states and 54603 transitions. Word has length 96 [2023-12-02 12:54:43,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:43,597 INFO L495 AbstractCegarLoop]: Abstraction has 26426 states and 54603 transitions. [2023-12-02 12:54:43,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:54:43,598 INFO L276 IsEmpty]: Start isEmpty. Operand 26426 states and 54603 transitions. [2023-12-02 12:54:43,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:54:43,604 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:43,604 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:43,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-02 12:54:43,604 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:54:43,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:43,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1738837298, now seen corresponding path program 10 times [2023-12-02 12:54:43,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:43,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959336797] [2023-12-02 12:54:43,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:43,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:45,353 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 12:54:45,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:45,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959336797] [2023-12-02 12:54:45,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959336797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:45,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:45,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 12:54:45,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697987418] [2023-12-02 12:54:45,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:45,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 12:54:45,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:45,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 12:54:45,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2023-12-02 12:54:45,355 INFO L87 Difference]: Start difference. First operand 26426 states and 54603 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:54:54,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:54,301 INFO L93 Difference]: Finished difference Result 44994 states and 92052 transitions. [2023-12-02 12:54:54,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-02 12:54:54,302 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:54:54,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:54,374 INFO L225 Difference]: With dead ends: 44994 [2023-12-02 12:54:54,374 INFO L226 Difference]: Without dead ends: 44994 [2023-12-02 12:54:54,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=775, Invalid=2765, Unknown=0, NotChecked=0, Total=3540 [2023-12-02 12:54:54,375 INFO L413 NwaCegarLoop]: 814 mSDtfsCounter, 3264 mSDsluCounter, 9272 mSDsCounter, 0 mSdLazyCounter, 7882 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3264 SdHoareTripleChecker+Valid, 10086 SdHoareTripleChecker+Invalid, 7916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 7882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:54,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3264 Valid, 10086 Invalid, 7916 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 7882 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-12-02 12:54:54,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44994 states. [2023-12-02 12:54:54,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44994 to 26426. [2023-12-02 12:54:54,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26426 states, 26362 states have (on average 2.0712389044837267) internal successors, (54602), 26425 states have internal predecessors, (54602), 0 states have call successors, (0), 0 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 12:54:54,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26426 states to 26426 states and 54602 transitions. [2023-12-02 12:54:54,861 INFO L78 Accepts]: Start accepts. Automaton has 26426 states and 54602 transitions. Word has length 96 [2023-12-02 12:54:54,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:54,861 INFO L495 AbstractCegarLoop]: Abstraction has 26426 states and 54602 transitions. [2023-12-02 12:54:54,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:54:54,862 INFO L276 IsEmpty]: Start isEmpty. Operand 26426 states and 54602 transitions. [2023-12-02 12:54:54,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:54:54,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:54,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:54,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-02 12:54:54,870 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:54:54,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:54,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1738604798, now seen corresponding path program 11 times [2023-12-02 12:54:54,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:54,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131087258] [2023-12-02 12:54:54,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:54,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:56,515 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 12:54:56,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:56,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131087258] [2023-12-02 12:54:56,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131087258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:56,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:56,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-02 12:54:56,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829199558] [2023-12-02 12:54:56,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:56,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-02 12:54:56,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:56,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-02 12:54:56,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=628, Unknown=0, NotChecked=0, Total=702 [2023-12-02 12:54:56,517 INFO L87 Difference]: Start difference. First operand 26426 states and 54602 transitions. Second operand has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:55:01,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:55:01,741 INFO L93 Difference]: Finished difference Result 39211 states and 80668 transitions. [2023-12-02 12:55:01,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 12:55:01,742 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:55:01,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:55:01,800 INFO L225 Difference]: With dead ends: 39211 [2023-12-02 12:55:01,800 INFO L226 Difference]: Without dead ends: 39211 [2023-12-02 12:55:01,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=449, Invalid=2203, Unknown=0, NotChecked=0, Total=2652 [2023-12-02 12:55:01,801 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 2138 mSDsluCounter, 7194 mSDsCounter, 0 mSdLazyCounter, 5630 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2138 SdHoareTripleChecker+Valid, 7928 SdHoareTripleChecker+Invalid, 5649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 5630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:55:01,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2138 Valid, 7928 Invalid, 5649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 5630 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-02 12:55:01,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39211 states. [2023-12-02 12:55:02,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39211 to 26597. [2023-12-02 12:55:02,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26597 states, 26533 states have (on average 2.070779783665624) internal successors, (54944), 26596 states have internal predecessors, (54944), 0 states have call successors, (0), 0 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 12:55:02,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26597 states to 26597 states and 54944 transitions. [2023-12-02 12:55:02,242 INFO L78 Accepts]: Start accepts. Automaton has 26597 states and 54944 transitions. Word has length 96 [2023-12-02 12:55:02,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:55:02,242 INFO L495 AbstractCegarLoop]: Abstraction has 26597 states and 54944 transitions. [2023-12-02 12:55:02,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:55:02,242 INFO L276 IsEmpty]: Start isEmpty. Operand 26597 states and 54944 transitions. [2023-12-02 12:55:02,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:55:02,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:55:02,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:55:02,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-02 12:55:02,254 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:55:02,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:55:02,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1452584889, now seen corresponding path program 6 times [2023-12-02 12:55:02,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:55:02,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636331469] [2023-12-02 12:55:02,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:55:02,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:55:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:55:06,409 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 12:55:06,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:55:06,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636331469] [2023-12-02 12:55:06,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636331469] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:55:06,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:55:06,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2023-12-02 12:55:06,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447344424] [2023-12-02 12:55:06,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:55:06,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-02 12:55:06,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:55:06,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-02 12:55:06,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2023-12-02 12:55:06,411 INFO L87 Difference]: Start difference. First operand 26597 states and 54944 transitions. Second operand has 35 states, 34 states have (on average 2.823529411764706) internal successors, (96), 35 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:55:18,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:55:18,950 INFO L93 Difference]: Finished difference Result 50178 states and 102770 transitions. [2023-12-02 12:55:18,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-02 12:55:18,951 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.823529411764706) internal successors, (96), 35 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:55:18,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:55:19,042 INFO L225 Difference]: With dead ends: 50178 [2023-12-02 12:55:19,042 INFO L226 Difference]: Without dead ends: 50174 [2023-12-02 12:55:19,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 986 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1136, Invalid=4266, Unknown=0, NotChecked=0, Total=5402 [2023-12-02 12:55:19,043 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 3935 mSDsluCounter, 8174 mSDsCounter, 0 mSdLazyCounter, 8015 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3935 SdHoareTripleChecker+Valid, 8916 SdHoareTripleChecker+Invalid, 8525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 8015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-02 12:55:19,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3935 Valid, 8916 Invalid, 8525 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [510 Valid, 8015 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-02 12:55:19,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50174 states. [2023-12-02 12:55:19,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50174 to 26603. [2023-12-02 12:55:19,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26603 states, 26539 states have (on average 2.0709898639737743) internal successors, (54962), 26602 states have internal predecessors, (54962), 0 states have call successors, (0), 0 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 12:55:19,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26603 states to 26603 states and 54962 transitions. [2023-12-02 12:55:19,543 INFO L78 Accepts]: Start accepts. Automaton has 26603 states and 54962 transitions. Word has length 96 [2023-12-02 12:55:19,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:55:19,544 INFO L495 AbstractCegarLoop]: Abstraction has 26603 states and 54962 transitions. [2023-12-02 12:55:19,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.823529411764706) internal successors, (96), 35 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:55:19,544 INFO L276 IsEmpty]: Start isEmpty. Operand 26603 states and 54962 transitions. [2023-12-02 12:55:19,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:55:19,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:55:19,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:55:19,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-02 12:55:19,552 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:55:19,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:55:19,552 INFO L85 PathProgramCache]: Analyzing trace with hash 2007967557, now seen corresponding path program 7 times [2023-12-02 12:55:19,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:55:19,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161841253] [2023-12-02 12:55:19,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:55:19,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:55:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:55:22,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:55:22,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:55:22,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161841253] [2023-12-02 12:55:22,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161841253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:55:22,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:55:22,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2023-12-02 12:55:22,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713732167] [2023-12-02 12:55:22,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:55:22,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-02 12:55:22,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:55:22,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-02 12:55:22,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1025, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 12:55:22,990 INFO L87 Difference]: Start difference. First operand 26603 states and 54962 transitions. Second operand has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:55:36,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:55:36,988 INFO L93 Difference]: Finished difference Result 50353 states and 103121 transitions. [2023-12-02 12:55:36,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-12-02 12:55:36,989 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:55:36,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:55:37,066 INFO L225 Difference]: With dead ends: 50353 [2023-12-02 12:55:37,066 INFO L226 Difference]: Without dead ends: 50349 [2023-12-02 12:55:37,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1110 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=1274, Invalid=4578, Unknown=0, NotChecked=0, Total=5852 [2023-12-02 12:55:37,067 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 3667 mSDsluCounter, 8966 mSDsCounter, 0 mSdLazyCounter, 9430 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3667 SdHoareTripleChecker+Valid, 9708 SdHoareTripleChecker+Invalid, 9898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 9430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:55:37,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3667 Valid, 9708 Invalid, 9898 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [468 Valid, 9430 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-12-02 12:55:37,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50349 states. [2023-12-02 12:55:37,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50349 to 26609. [2023-12-02 12:55:37,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26609 states, 26545 states have (on average 2.0709738180448296) internal successors, (54974), 26608 states have internal predecessors, (54974), 0 states have call successors, (0), 0 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 12:55:37,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26609 states to 26609 states and 54974 transitions. [2023-12-02 12:55:37,534 INFO L78 Accepts]: Start accepts. Automaton has 26609 states and 54974 transitions. Word has length 96 [2023-12-02 12:55:37,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:55:37,534 INFO L495 AbstractCegarLoop]: Abstraction has 26609 states and 54974 transitions. [2023-12-02 12:55:37,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:55:37,534 INFO L276 IsEmpty]: Start isEmpty. Operand 26609 states and 54974 transitions. [2023-12-02 12:55:37,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:55:37,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:55:37,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:55:37,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-02 12:55:37,542 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:55:37,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:55:37,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1089219285, now seen corresponding path program 8 times [2023-12-02 12:55:37,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:55:37,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895770176] [2023-12-02 12:55:37,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:55:37,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:55:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:55:41,052 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 12:55:41,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:55:41,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895770176] [2023-12-02 12:55:41,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895770176] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:55:41,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:55:41,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2023-12-02 12:55:41,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817309108] [2023-12-02 12:55:41,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:55:41,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 12:55:41,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:55:41,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 12:55:41,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=906, Unknown=0, NotChecked=0, Total=992 [2023-12-02 12:55:41,055 INFO L87 Difference]: Start difference. First operand 26609 states and 54974 transitions. Second operand has 32 states, 31 states have (on average 3.096774193548387) internal successors, (96), 32 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:55:54,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:55:54,348 INFO L93 Difference]: Finished difference Result 50710 states and 103829 transitions. [2023-12-02 12:55:54,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-02 12:55:54,349 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.096774193548387) internal successors, (96), 32 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:55:54,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:55:54,429 INFO L225 Difference]: With dead ends: 50710 [2023-12-02 12:55:54,429 INFO L226 Difference]: Without dead ends: 50706 [2023-12-02 12:55:54,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1004 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1203, Invalid=4199, Unknown=0, NotChecked=0, Total=5402 [2023-12-02 12:55:54,430 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 3526 mSDsluCounter, 8982 mSDsCounter, 0 mSdLazyCounter, 9422 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3526 SdHoareTripleChecker+Valid, 9719 SdHoareTripleChecker+Invalid, 9811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 9422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:55:54,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3526 Valid, 9719 Invalid, 9811 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [389 Valid, 9422 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-12-02 12:55:54,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50706 states. [2023-12-02 12:55:54,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50706 to 26655. [2023-12-02 12:55:54,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26655 states, 26591 states have (on average 2.071227106915874) internal successors, (55076), 26654 states have internal predecessors, (55076), 0 states have call successors, (0), 0 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 12:55:54,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26655 states to 26655 states and 55076 transitions. [2023-12-02 12:55:54,955 INFO L78 Accepts]: Start accepts. Automaton has 26655 states and 55076 transitions. Word has length 96 [2023-12-02 12:55:54,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:55:54,956 INFO L495 AbstractCegarLoop]: Abstraction has 26655 states and 55076 transitions. [2023-12-02 12:55:54,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.096774193548387) internal successors, (96), 32 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:55:54,956 INFO L276 IsEmpty]: Start isEmpty. Operand 26655 states and 55076 transitions. [2023-12-02 12:55:54,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:55:54,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:55:54,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:54,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-02 12:55:54,963 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:55:54,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:55:54,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1642164555, now seen corresponding path program 9 times [2023-12-02 12:55:54,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:55:54,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904981217] [2023-12-02 12:55:54,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:55:54,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:55:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:55:58,672 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 12:55:58,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:55:58,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904981217] [2023-12-02 12:55:58,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904981217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:55:58,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:55:58,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2023-12-02 12:55:58,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778200262] [2023-12-02 12:55:58,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:55:58,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-02 12:55:58,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:55:58,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-02 12:55:58,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1026, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 12:55:58,674 INFO L87 Difference]: Start difference. First operand 26655 states and 55076 transitions. Second operand has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:56:12,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:56:12,795 INFO L93 Difference]: Finished difference Result 52056 states and 106776 transitions. [2023-12-02 12:56:12,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-12-02 12:56:12,796 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:56:12,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:56:12,888 INFO L225 Difference]: With dead ends: 52056 [2023-12-02 12:56:12,888 INFO L226 Difference]: Without dead ends: 52052 [2023-12-02 12:56:12,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1108 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1266, Invalid=4586, Unknown=0, NotChecked=0, Total=5852 [2023-12-02 12:56:12,889 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 3608 mSDsluCounter, 9274 mSDsCounter, 0 mSdLazyCounter, 9563 mSolverCounterSat, 412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3608 SdHoareTripleChecker+Valid, 10017 SdHoareTripleChecker+Invalid, 9975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 9563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-02 12:56:12,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3608 Valid, 10017 Invalid, 9975 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [412 Valid, 9563 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-12-02 12:56:12,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52052 states. [2023-12-02 12:56:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52052 to 29374. [2023-12-02 12:56:13,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29374 states, 29310 states have (on average 2.079597407028318) internal successors, (60953), 29373 states have internal predecessors, (60953), 0 states have call successors, (0), 0 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 12:56:13,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29374 states to 29374 states and 60953 transitions. [2023-12-02 12:56:13,440 INFO L78 Accepts]: Start accepts. Automaton has 29374 states and 60953 transitions. Word has length 96 [2023-12-02 12:56:13,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:56:13,440 INFO L495 AbstractCegarLoop]: Abstraction has 29374 states and 60953 transitions. [2023-12-02 12:56:13,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:56:13,441 INFO L276 IsEmpty]: Start isEmpty. Operand 29374 states and 60953 transitions. [2023-12-02 12:56:13,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:56:13,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:56:13,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:56:13,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-02 12:56:13,448 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:56:13,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:56:13,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1455022287, now seen corresponding path program 10 times [2023-12-02 12:56:13,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:56:13,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373723077] [2023-12-02 12:56:13,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:56:13,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:56:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:56:16,510 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 12:56:16,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:56:16,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373723077] [2023-12-02 12:56:16,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373723077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:56:16,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:56:16,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2023-12-02 12:56:16,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939528715] [2023-12-02 12:56:16,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:56:16,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 12:56:16,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:56:16,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 12:56:16,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=910, Unknown=0, NotChecked=0, Total=992 [2023-12-02 12:56:16,512 INFO L87 Difference]: Start difference. First operand 29374 states and 60953 transitions. Second operand has 32 states, 31 states have (on average 3.096774193548387) internal successors, (96), 32 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:56:30,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:56:30,596 INFO L93 Difference]: Finished difference Result 54833 states and 112615 transitions. [2023-12-02 12:56:30,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-02 12:56:30,597 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.096774193548387) internal successors, (96), 32 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:56:30,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:56:30,687 INFO L225 Difference]: With dead ends: 54833 [2023-12-02 12:56:30,687 INFO L226 Difference]: Without dead ends: 54829 [2023-12-02 12:56:30,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1340 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=1488, Invalid=5154, Unknown=0, NotChecked=0, Total=6642 [2023-12-02 12:56:30,688 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 3746 mSDsluCounter, 9222 mSDsCounter, 0 mSdLazyCounter, 9783 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3746 SdHoareTripleChecker+Valid, 9957 SdHoareTripleChecker+Invalid, 10354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 9783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-12-02 12:56:30,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3746 Valid, 9957 Invalid, 10354 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [571 Valid, 9783 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-12-02 12:56:30,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54829 states. [2023-12-02 12:56:31,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54829 to 29420. [2023-12-02 12:56:31,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29420 states, 29356 states have (on average 2.080017713584957) internal successors, (61061), 29419 states have internal predecessors, (61061), 0 states have call successors, (0), 0 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 12:56:31,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29420 states to 29420 states and 61061 transitions. [2023-12-02 12:56:31,211 INFO L78 Accepts]: Start accepts. Automaton has 29420 states and 61061 transitions. Word has length 96 [2023-12-02 12:56:31,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:56:31,211 INFO L495 AbstractCegarLoop]: Abstraction has 29420 states and 61061 transitions. [2023-12-02 12:56:31,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.096774193548387) internal successors, (96), 32 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:56:31,211 INFO L276 IsEmpty]: Start isEmpty. Operand 29420 states and 61061 transitions. [2023-12-02 12:56:31,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:56:31,218 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:56:31,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:56:31,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-02 12:56:31,218 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:56:31,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:56:31,219 INFO L85 PathProgramCache]: Analyzing trace with hash 279947011, now seen corresponding path program 11 times [2023-12-02 12:56:31,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:56:31,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063396952] [2023-12-02 12:56:31,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:56:31,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:56:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:56:32,659 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 12:56:32,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:56:32,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063396952] [2023-12-02 12:56:32,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063396952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:56:32,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:56:32,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-02 12:56:32,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33172112] [2023-12-02 12:56:32,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:56:32,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-02 12:56:32,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:56:32,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-02 12:56:32,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2023-12-02 12:56:32,661 INFO L87 Difference]: Start difference. First operand 29420 states and 61061 transitions. Second operand has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:56:38,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:56:38,553 INFO L93 Difference]: Finished difference Result 44625 states and 92066 transitions. [2023-12-02 12:56:38,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 12:56:38,554 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:56:38,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:56:38,616 INFO L225 Difference]: With dead ends: 44625 [2023-12-02 12:56:38,616 INFO L226 Difference]: Without dead ends: 44625 [2023-12-02 12:56:38,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=677, Invalid=2515, Unknown=0, NotChecked=0, Total=3192 [2023-12-02 12:56:38,617 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 2175 mSDsluCounter, 7469 mSDsCounter, 0 mSdLazyCounter, 5513 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2175 SdHoareTripleChecker+Valid, 8126 SdHoareTripleChecker+Invalid, 5767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 5513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-02 12:56:38,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2175 Valid, 8126 Invalid, 5767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 5513 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-02 12:56:38,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44625 states. [2023-12-02 12:56:39,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44625 to 29599. [2023-12-02 12:56:39,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29599 states, 29535 states have (on average 2.079566615879465) internal successors, (61420), 29598 states have internal predecessors, (61420), 0 states have call successors, (0), 0 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 12:56:39,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29599 states to 29599 states and 61420 transitions. [2023-12-02 12:56:39,094 INFO L78 Accepts]: Start accepts. Automaton has 29599 states and 61420 transitions. Word has length 96 [2023-12-02 12:56:39,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:56:39,095 INFO L495 AbstractCegarLoop]: Abstraction has 29599 states and 61420 transitions. [2023-12-02 12:56:39,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:56:39,095 INFO L276 IsEmpty]: Start isEmpty. Operand 29599 states and 61420 transitions. [2023-12-02 12:56:39,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:56:39,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:56:39,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:56:39,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-02 12:56:39,102 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:56:39,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:56:39,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1114662795, now seen corresponding path program 12 times [2023-12-02 12:56:39,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:56:39,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733266498] [2023-12-02 12:56:39,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:56:39,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:56:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:56:40,715 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 12:56:40,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:56:40,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733266498] [2023-12-02 12:56:40,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733266498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:56:40,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:56:40,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-02 12:56:40,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028555095] [2023-12-02 12:56:40,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:56:40,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-02 12:56:40,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:56:40,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-02 12:56:40,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2023-12-02 12:56:40,717 INFO L87 Difference]: Start difference. First operand 29599 states and 61420 transitions. Second operand has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:56:45,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:56:45,904 INFO L93 Difference]: Finished difference Result 44429 states and 91678 transitions. [2023-12-02 12:56:45,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 12:56:45,905 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:56:45,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:56:45,969 INFO L225 Difference]: With dead ends: 44429 [2023-12-02 12:56:45,969 INFO L226 Difference]: Without dead ends: 44429 [2023-12-02 12:56:45,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=625, Invalid=2455, Unknown=0, NotChecked=0, Total=3080 [2023-12-02 12:56:45,970 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 2211 mSDsluCounter, 6304 mSDsCounter, 0 mSdLazyCounter, 4911 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 6961 SdHoareTripleChecker+Invalid, 5195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 4911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:56:45,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2211 Valid, 6961 Invalid, 5195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 4911 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-02 12:56:46,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44429 states. [2023-12-02 12:56:46,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44429 to 29689. [2023-12-02 12:56:46,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29689 states, 29625 states have (on average 2.079426160337553) internal successors, (61603), 29688 states have internal predecessors, (61603), 0 states have call successors, (0), 0 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 12:56:46,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29689 states to 29689 states and 61603 transitions. [2023-12-02 12:56:46,492 INFO L78 Accepts]: Start accepts. Automaton has 29689 states and 61603 transitions. Word has length 96 [2023-12-02 12:56:46,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:56:46,492 INFO L495 AbstractCegarLoop]: Abstraction has 29689 states and 61603 transitions. [2023-12-02 12:56:46,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:56:46,492 INFO L276 IsEmpty]: Start isEmpty. Operand 29689 states and 61603 transitions. [2023-12-02 12:56:46,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:56:46,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:56:46,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:56:46,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-02 12:56:46,500 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:56:46,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:56:46,501 INFO L85 PathProgramCache]: Analyzing trace with hash -2103615923, now seen corresponding path program 13 times [2023-12-02 12:56:46,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:56:46,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553548149] [2023-12-02 12:56:46,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:56:46,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:56:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:56:50,307 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 12:56:50,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:56:50,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553548149] [2023-12-02 12:56:50,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553548149] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:56:50,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:56:50,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2023-12-02 12:56:50,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296724926] [2023-12-02 12:56:50,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:56:50,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-02 12:56:50,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:56:50,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-02 12:56:50,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1025, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 12:56:50,309 INFO L87 Difference]: Start difference. First operand 29689 states and 61603 transitions. Second operand has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:57:04,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:57:04,933 INFO L93 Difference]: Finished difference Result 55699 states and 114586 transitions. [2023-12-02 12:57:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-02 12:57:04,934 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:57:04,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:57:05,021 INFO L225 Difference]: With dead ends: 55699 [2023-12-02 12:57:05,021 INFO L226 Difference]: Without dead ends: 55695 [2023-12-02 12:57:05,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1145 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=1305, Invalid=4701, Unknown=0, NotChecked=0, Total=6006 [2023-12-02 12:57:05,022 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 3817 mSDsluCounter, 8524 mSDsCounter, 0 mSdLazyCounter, 9425 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3817 SdHoareTripleChecker+Valid, 9267 SdHoareTripleChecker+Invalid, 9931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 9425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:57:05,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3817 Valid, 9267 Invalid, 9931 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [506 Valid, 9425 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2023-12-02 12:57:05,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55695 states. [2023-12-02 12:57:05,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55695 to 32437. [2023-12-02 12:57:05,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32437 states, 32373 states have (on average 2.0861520402804805) internal successors, (67535), 32436 states have internal predecessors, (67535), 0 states have call successors, (0), 0 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 12:57:05,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32437 states to 32437 states and 67535 transitions. [2023-12-02 12:57:05,586 INFO L78 Accepts]: Start accepts. Automaton has 32437 states and 67535 transitions. Word has length 96 [2023-12-02 12:57:05,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:57:05,587 INFO L495 AbstractCegarLoop]: Abstraction has 32437 states and 67535 transitions. [2023-12-02 12:57:05,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:57:05,587 INFO L276 IsEmpty]: Start isEmpty. Operand 32437 states and 67535 transitions. [2023-12-02 12:57:05,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:57:05,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:57:05,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:57:05,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-02 12:57:05,594 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:57:05,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:57:05,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1905868011, now seen corresponding path program 14 times [2023-12-02 12:57:05,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:57:05,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596877440] [2023-12-02 12:57:05,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:57:05,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:57:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:57:08,673 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 12:57:08,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:57:08,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596877440] [2023-12-02 12:57:08,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596877440] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:57:08,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:57:08,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2023-12-02 12:57:08,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274497136] [2023-12-02 12:57:08,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:57:08,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 12:57:08,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:57:08,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 12:57:08,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=970, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 12:57:08,675 INFO L87 Difference]: Start difference. First operand 32437 states and 67535 transitions. Second operand has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:57:22,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:57:22,405 INFO L93 Difference]: Finished difference Result 58066 states and 119598 transitions. [2023-12-02 12:57:22,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-02 12:57:22,406 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:57:22,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:57:22,505 INFO L225 Difference]: With dead ends: 58066 [2023-12-02 12:57:22,505 INFO L226 Difference]: Without dead ends: 58062 [2023-12-02 12:57:22,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1180 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1317, Invalid=4689, Unknown=0, NotChecked=0, Total=6006 [2023-12-02 12:57:22,505 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 4107 mSDsluCounter, 9075 mSDsCounter, 0 mSdLazyCounter, 9434 mSolverCounterSat, 593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4107 SdHoareTripleChecker+Valid, 9813 SdHoareTripleChecker+Invalid, 10027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 593 IncrementalHoareTripleChecker+Valid, 9434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:57:22,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4107 Valid, 9813 Invalid, 10027 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [593 Valid, 9434 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-12-02 12:57:22,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58062 states. [2023-12-02 12:57:23,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58062 to 32525. [2023-12-02 12:57:23,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32525 states, 32461 states have (on average 2.086349773574443) internal successors, (67725), 32524 states have internal predecessors, (67725), 0 states have call successors, (0), 0 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 12:57:23,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32525 states to 32525 states and 67725 transitions. [2023-12-02 12:57:23,122 INFO L78 Accepts]: Start accepts. Automaton has 32525 states and 67725 transitions. Word has length 96 [2023-12-02 12:57:23,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:57:23,122 INFO L495 AbstractCegarLoop]: Abstraction has 32525 states and 67725 transitions. [2023-12-02 12:57:23,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:57:23,122 INFO L276 IsEmpty]: Start isEmpty. Operand 32525 states and 67725 transitions. [2023-12-02 12:57:23,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:57:23,131 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:57:23,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:57:23,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-02 12:57:23,131 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:57:23,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:57:23,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1868358993, now seen corresponding path program 15 times [2023-12-02 12:57:23,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:57:23,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542037180] [2023-12-02 12:57:23,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:57:23,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:57:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:57:24,720 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 12:57:24,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:57:24,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542037180] [2023-12-02 12:57:24,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542037180] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:57:24,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:57:24,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-02 12:57:24,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052522640] [2023-12-02 12:57:24,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:57:24,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-02 12:57:24,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:57:24,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-02 12:57:24,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2023-12-02 12:57:24,723 INFO L87 Difference]: Start difference. First operand 32525 states and 67725 transitions. Second operand has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:57:30,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:57:30,385 INFO L93 Difference]: Finished difference Result 48704 states and 100761 transitions. [2023-12-02 12:57:30,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 12:57:30,385 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:57:30,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:57:30,459 INFO L225 Difference]: With dead ends: 48704 [2023-12-02 12:57:30,459 INFO L226 Difference]: Without dead ends: 48704 [2023-12-02 12:57:30,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=665, Invalid=2527, Unknown=0, NotChecked=0, Total=3192 [2023-12-02 12:57:30,459 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 2142 mSDsluCounter, 7061 mSDsCounter, 0 mSdLazyCounter, 5266 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 7718 SdHoareTripleChecker+Invalid, 5596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 5266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:57:30,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2142 Valid, 7718 Invalid, 5596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 5266 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-02 12:57:30,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48704 states. [2023-12-02 12:57:30,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48704 to 32545. [2023-12-02 12:57:30,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32545 states, 32481 states have (on average 2.086296604168591) internal successors, (67765), 32544 states have internal predecessors, (67765), 0 states have call successors, (0), 0 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 12:57:31,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32545 states to 32545 states and 67765 transitions. [2023-12-02 12:57:31,039 INFO L78 Accepts]: Start accepts. Automaton has 32545 states and 67765 transitions. Word has length 96 [2023-12-02 12:57:31,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:57:31,039 INFO L495 AbstractCegarLoop]: Abstraction has 32545 states and 67765 transitions. [2023-12-02 12:57:31,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:57:31,040 INFO L276 IsEmpty]: Start isEmpty. Operand 32545 states and 67765 transitions. [2023-12-02 12:57:31,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:57:31,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:57:31,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:57:31,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-02 12:57:31,048 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:57:31,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:57:31,048 INFO L85 PathProgramCache]: Analyzing trace with hash -985596185, now seen corresponding path program 16 times [2023-12-02 12:57:31,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:57:31,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386675397] [2023-12-02 12:57:31,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:57:31,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:57:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:57:34,378 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 12:57:34,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:57:34,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386675397] [2023-12-02 12:57:34,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386675397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:57:34,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:57:34,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2023-12-02 12:57:34,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014187952] [2023-12-02 12:57:34,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:57:34,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-02 12:57:34,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:57:34,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-02 12:57:34,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1030, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 12:57:34,380 INFO L87 Difference]: Start difference. First operand 32545 states and 67765 transitions. Second operand has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:57:49,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:57:49,098 INFO L93 Difference]: Finished difference Result 59405 states and 122544 transitions. [2023-12-02 12:57:49,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-12-02 12:57:49,099 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:57:49,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:57:49,222 INFO L225 Difference]: With dead ends: 59405 [2023-12-02 12:57:49,222 INFO L226 Difference]: Without dead ends: 59401 [2023-12-02 12:57:49,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1317 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=1420, Invalid=5222, Unknown=0, NotChecked=0, Total=6642 [2023-12-02 12:57:49,223 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 4006 mSDsluCounter, 9126 mSDsCounter, 0 mSdLazyCounter, 9736 mSolverCounterSat, 598 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4006 SdHoareTripleChecker+Valid, 9860 SdHoareTripleChecker+Invalid, 10334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 598 IncrementalHoareTripleChecker+Valid, 9736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-12-02 12:57:49,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4006 Valid, 9860 Invalid, 10334 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [598 Valid, 9736 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2023-12-02 12:57:49,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59401 states. [2023-12-02 12:57:49,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59401 to 34078. [2023-12-02 12:57:49,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34078 states, 34014 states have (on average 2.089521961545246) internal successors, (71073), 34077 states have internal predecessors, (71073), 0 states have call successors, (0), 0 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 12:57:49,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34078 states to 34078 states and 71073 transitions. [2023-12-02 12:57:49,927 INFO L78 Accepts]: Start accepts. Automaton has 34078 states and 71073 transitions. Word has length 96 [2023-12-02 12:57:49,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:57:49,927 INFO L495 AbstractCegarLoop]: Abstraction has 34078 states and 71073 transitions. [2023-12-02 12:57:49,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:57:49,928 INFO L276 IsEmpty]: Start isEmpty. Operand 34078 states and 71073 transitions. [2023-12-02 12:57:49,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:57:49,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:57:49,938 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:57:49,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-02 12:57:49,938 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:57:49,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:57:49,938 INFO L85 PathProgramCache]: Analyzing trace with hash 923956433, now seen corresponding path program 17 times [2023-12-02 12:57:49,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:57:49,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908162886] [2023-12-02 12:57:49,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:57:49,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:57:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:57:53,529 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 12:57:53,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:57:53,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908162886] [2023-12-02 12:57:53,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908162886] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:57:53,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:57:53,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2023-12-02 12:57:53,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712827454] [2023-12-02 12:57:53,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:57:53,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-02 12:57:53,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:57:53,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-02 12:57:53,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1021, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 12:57:53,531 INFO L87 Difference]: Start difference. First operand 34078 states and 71073 transitions. Second operand has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:58:06,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:58:06,251 INFO L93 Difference]: Finished difference Result 58595 states and 120836 transitions. [2023-12-02 12:58:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-02 12:58:06,251 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:58:06,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:58:06,335 INFO L225 Difference]: With dead ends: 58595 [2023-12-02 12:58:06,335 INFO L226 Difference]: Without dead ends: 58594 [2023-12-02 12:58:06,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1285 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1399, Invalid=5081, Unknown=0, NotChecked=0, Total=6480 [2023-12-02 12:58:06,336 INFO L413 NwaCegarLoop]: 733 mSDtfsCounter, 3718 mSDsluCounter, 8814 mSDsCounter, 0 mSdLazyCounter, 7948 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3718 SdHoareTripleChecker+Valid, 9547 SdHoareTripleChecker+Invalid, 8522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 7948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-12-02 12:58:06,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3718 Valid, 9547 Invalid, 8522 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [574 Valid, 7948 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-12-02 12:58:06,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58594 states. [2023-12-02 12:58:06,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58594 to 34096. [2023-12-02 12:58:06,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34096 states, 34032 states have (on average 2.0894746121297603) internal successors, (71109), 34095 states have internal predecessors, (71109), 0 states have call successors, (0), 0 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 12:58:06,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34096 states to 34096 states and 71109 transitions. [2023-12-02 12:58:06,895 INFO L78 Accepts]: Start accepts. Automaton has 34096 states and 71109 transitions. Word has length 96 [2023-12-02 12:58:06,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:58:06,895 INFO L495 AbstractCegarLoop]: Abstraction has 34096 states and 71109 transitions. [2023-12-02 12:58:06,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:58:06,895 INFO L276 IsEmpty]: Start isEmpty. Operand 34096 states and 71109 transitions. [2023-12-02 12:58:06,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:58:06,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:58:06,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:58:06,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-02 12:58:06,902 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:58:06,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:58:06,903 INFO L85 PathProgramCache]: Analyzing trace with hash -876059481, now seen corresponding path program 18 times [2023-12-02 12:58:06,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:58:06,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898874781] [2023-12-02 12:58:06,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:58:06,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:58:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:58:09,508 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 12:58:09,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:58:09,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898874781] [2023-12-02 12:58:09,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898874781] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:58:09,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:58:09,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2023-12-02 12:58:09,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857817125] [2023-12-02 12:58:09,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:58:09,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 12:58:09,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:58:09,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 12:58:09,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=968, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 12:58:09,510 INFO L87 Difference]: Start difference. First operand 34096 states and 71109 transitions. Second operand has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:58:23,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:58:23,342 INFO L93 Difference]: Finished difference Result 58975 states and 121678 transitions. [2023-12-02 12:58:23,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-02 12:58:23,343 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:58:23,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:58:23,442 INFO L225 Difference]: With dead ends: 58975 [2023-12-02 12:58:23,442 INFO L226 Difference]: Without dead ends: 58974 [2023-12-02 12:58:23,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1546 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1613, Invalid=5697, Unknown=0, NotChecked=0, Total=7310 [2023-12-02 12:58:23,443 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 4215 mSDsluCounter, 9141 mSDsCounter, 0 mSdLazyCounter, 9673 mSolverCounterSat, 704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4215 SdHoareTripleChecker+Valid, 9876 SdHoareTripleChecker+Invalid, 10377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 704 IncrementalHoareTripleChecker+Valid, 9673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-02 12:58:23,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4215 Valid, 9876 Invalid, 10377 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [704 Valid, 9673 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-02 12:58:23,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58974 states. [2023-12-02 12:58:24,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58974 to 34120. [2023-12-02 12:58:24,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34120 states, 34056 states have (on average 2.089470284237726) internal successors, (71159), 34119 states have internal predecessors, (71159), 0 states have call successors, (0), 0 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 12:58:24,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34120 states to 34120 states and 71159 transitions. [2023-12-02 12:58:24,113 INFO L78 Accepts]: Start accepts. Automaton has 34120 states and 71159 transitions. Word has length 96 [2023-12-02 12:58:24,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:58:24,114 INFO L495 AbstractCegarLoop]: Abstraction has 34120 states and 71159 transitions. [2023-12-02 12:58:24,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:58:24,114 INFO L276 IsEmpty]: Start isEmpty. Operand 34120 states and 71159 transitions. [2023-12-02 12:58:24,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:58:24,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:58:24,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:58:24,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-02 12:58:24,121 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:58:24,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:58:24,122 INFO L85 PathProgramCache]: Analyzing trace with hash 107680061, now seen corresponding path program 19 times [2023-12-02 12:58:24,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:58:24,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622505528] [2023-12-02 12:58:24,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:58:24,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:58:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:58:25,481 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 12:58:25,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:58:25,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622505528] [2023-12-02 12:58:25,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622505528] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:58:25,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:58:25,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 12:58:25,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989729578] [2023-12-02 12:58:25,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:58:25,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 12:58:25,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:58:25,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 12:58:25,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2023-12-02 12:58:25,483 INFO L87 Difference]: Start difference. First operand 34120 states and 71159 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:58:38,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:58:38,473 INFO L93 Difference]: Finished difference Result 57707 states and 118949 transitions. [2023-12-02 12:58:38,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-12-02 12:58:38,473 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:58:38,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:58:38,581 INFO L225 Difference]: With dead ends: 57707 [2023-12-02 12:58:38,581 INFO L226 Difference]: Without dead ends: 57703 [2023-12-02 12:58:38,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2474 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=2487, Invalid=7019, Unknown=0, NotChecked=0, Total=9506 [2023-12-02 12:58:38,582 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 3940 mSDsluCounter, 8113 mSDsCounter, 0 mSdLazyCounter, 7077 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3940 SdHoareTripleChecker+Valid, 8844 SdHoareTripleChecker+Invalid, 7476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 7077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-02 12:58:38,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3940 Valid, 8844 Invalid, 7476 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [399 Valid, 7077 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-02 12:58:38,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57703 states. [2023-12-02 12:58:39,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57703 to 26770. [2023-12-02 12:58:39,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26770 states, 26706 states have (on average 2.070208941810829) internal successors, (55287), 26769 states have internal predecessors, (55287), 0 states have call successors, (0), 0 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 12:58:39,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26770 states to 26770 states and 55287 transitions. [2023-12-02 12:58:39,287 INFO L78 Accepts]: Start accepts. Automaton has 26770 states and 55287 transitions. Word has length 96 [2023-12-02 12:58:39,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:58:39,287 INFO L495 AbstractCegarLoop]: Abstraction has 26770 states and 55287 transitions. [2023-12-02 12:58:39,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:58:39,287 INFO L276 IsEmpty]: Start isEmpty. Operand 26770 states and 55287 transitions. [2023-12-02 12:58:39,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:58:39,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:58:39,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:58:39,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-02 12:58:39,296 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:58:39,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:58:39,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1707425627, now seen corresponding path program 20 times [2023-12-02 12:58:39,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:58:39,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259704128] [2023-12-02 12:58:39,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:58:39,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:58:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:58:43,191 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 12:58:43,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:58:43,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259704128] [2023-12-02 12:58:43,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259704128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:58:43,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:58:43,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2023-12-02 12:58:43,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868980244] [2023-12-02 12:58:43,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:58:43,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 12:58:43,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:58:43,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 12:58:43,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=961, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 12:58:43,193 INFO L87 Difference]: Start difference. First operand 26770 states and 55287 transitions. Second operand has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:58:55,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:58:55,752 INFO L93 Difference]: Finished difference Result 51916 states and 106473 transitions. [2023-12-02 12:58:55,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-12-02 12:58:55,753 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:58:55,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:58:55,836 INFO L225 Difference]: With dead ends: 51916 [2023-12-02 12:58:55,836 INFO L226 Difference]: Without dead ends: 51912 [2023-12-02 12:58:55,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1031 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1264, Invalid=4436, Unknown=0, NotChecked=0, Total=5700 [2023-12-02 12:58:55,837 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 3520 mSDsluCounter, 8264 mSDsCounter, 0 mSdLazyCounter, 8604 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3520 SdHoareTripleChecker+Valid, 9005 SdHoareTripleChecker+Invalid, 8955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 8604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-12-02 12:58:55,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3520 Valid, 9005 Invalid, 8955 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [351 Valid, 8604 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-12-02 12:58:55,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51912 states. [2023-12-02 12:58:56,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51912 to 29532. [2023-12-02 12:58:56,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29532 states, 29468 states have (on average 2.078491923442378) internal successors, (61249), 29531 states have internal predecessors, (61249), 0 states have call successors, (0), 0 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 12:58:56,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29532 states to 29532 states and 61249 transitions. [2023-12-02 12:58:56,393 INFO L78 Accepts]: Start accepts. Automaton has 29532 states and 61249 transitions. Word has length 96 [2023-12-02 12:58:56,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:58:56,393 INFO L495 AbstractCegarLoop]: Abstraction has 29532 states and 61249 transitions. [2023-12-02 12:58:56,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:58:56,393 INFO L276 IsEmpty]: Start isEmpty. Operand 29532 states and 61249 transitions. [2023-12-02 12:58:56,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:58:56,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:58:56,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:58:56,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-02 12:58:56,401 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:58:56,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:58:56,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1421942265, now seen corresponding path program 21 times [2023-12-02 12:58:56,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:58:56,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072365615] [2023-12-02 12:58:56,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:58:56,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:58:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:58:59,649 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 12:58:59,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:58:59,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072365615] [2023-12-02 12:58:59,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072365615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:58:59,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:58:59,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2023-12-02 12:58:59,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676945381] [2023-12-02 12:58:59,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:58:59,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 12:58:59,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:58:59,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 12:58:59,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 12:58:59,651 INFO L87 Difference]: Start difference. First operand 29532 states and 61249 transitions. Second operand has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:59:12,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:59:12,873 INFO L93 Difference]: Finished difference Result 55805 states and 114911 transitions. [2023-12-02 12:59:12,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-02 12:59:12,874 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:59:12,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:59:12,972 INFO L225 Difference]: With dead ends: 55805 [2023-12-02 12:59:12,972 INFO L226 Difference]: Without dead ends: 55804 [2023-12-02 12:59:12,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1083 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1279, Invalid=4573, Unknown=0, NotChecked=0, Total=5852 [2023-12-02 12:59:12,973 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 3209 mSDsluCounter, 9182 mSDsCounter, 0 mSdLazyCounter, 9795 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3209 SdHoareTripleChecker+Valid, 9946 SdHoareTripleChecker+Invalid, 10133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 9795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-12-02 12:59:12,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3209 Valid, 9946 Invalid, 10133 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [338 Valid, 9795 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-12-02 12:59:13,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55804 states. [2023-12-02 12:59:13,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55804 to 33172. [2023-12-02 12:59:13,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33172 states, 33108 states have (on average 2.0883170230759935) internal successors, (69140), 33171 states have internal predecessors, (69140), 0 states have call successors, (0), 0 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 12:59:13,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33172 states to 33172 states and 69140 transitions. [2023-12-02 12:59:13,630 INFO L78 Accepts]: Start accepts. Automaton has 33172 states and 69140 transitions. Word has length 96 [2023-12-02 12:59:13,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:59:13,631 INFO L495 AbstractCegarLoop]: Abstraction has 33172 states and 69140 transitions. [2023-12-02 12:59:13,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:59:13,631 INFO L276 IsEmpty]: Start isEmpty. Operand 33172 states and 69140 transitions. [2023-12-02 12:59:13,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:59:13,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:59:13,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:59:13,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-02 12:59:13,639 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:59:13,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:59:13,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1469521931, now seen corresponding path program 22 times [2023-12-02 12:59:13,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:59:13,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754297924] [2023-12-02 12:59:13,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:59:13,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:59:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:59:17,021 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 12:59:17,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:59:17,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754297924] [2023-12-02 12:59:17,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754297924] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:59:17,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:59:17,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2023-12-02 12:59:17,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889855823] [2023-12-02 12:59:17,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:59:17,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 12:59:17,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:59:17,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 12:59:17,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=963, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 12:59:17,023 INFO L87 Difference]: Start difference. First operand 33172 states and 69140 transitions. Second operand has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:59:29,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:59:29,943 INFO L93 Difference]: Finished difference Result 59922 states and 123605 transitions. [2023-12-02 12:59:29,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-12-02 12:59:29,944 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:59:29,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:59:30,050 INFO L225 Difference]: With dead ends: 59922 [2023-12-02 12:59:30,050 INFO L226 Difference]: Without dead ends: 59918 [2023-12-02 12:59:30,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1418, Invalid=5062, Unknown=0, NotChecked=0, Total=6480 [2023-12-02 12:59:30,051 INFO L413 NwaCegarLoop]: 733 mSDtfsCounter, 4151 mSDsluCounter, 8117 mSDsCounter, 0 mSdLazyCounter, 8705 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4151 SdHoareTripleChecker+Valid, 8850 SdHoareTripleChecker+Invalid, 9307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 8705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:59:30,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4151 Valid, 8850 Invalid, 9307 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [602 Valid, 8705 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-12-02 12:59:30,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59918 states. [2023-12-02 12:59:30,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59918 to 34611. [2023-12-02 12:59:30,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34611 states, 34547 states have (on average 2.0909485628274527) internal successors, (72236), 34610 states have internal predecessors, (72236), 0 states have call successors, (0), 0 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 12:59:30,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34611 states to 34611 states and 72236 transitions. [2023-12-02 12:59:30,705 INFO L78 Accepts]: Start accepts. Automaton has 34611 states and 72236 transitions. Word has length 96 [2023-12-02 12:59:30,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:59:30,705 INFO L495 AbstractCegarLoop]: Abstraction has 34611 states and 72236 transitions. [2023-12-02 12:59:30,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:59:30,705 INFO L276 IsEmpty]: Start isEmpty. Operand 34611 states and 72236 transitions. [2023-12-02 12:59:30,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:59:30,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:59:30,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:59:30,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-02 12:59:30,714 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:59:30,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:59:30,715 INFO L85 PathProgramCache]: Analyzing trace with hash 440030687, now seen corresponding path program 23 times [2023-12-02 12:59:30,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:59:30,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314201524] [2023-12-02 12:59:30,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:59:30,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:59:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:59:34,210 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 12:59:34,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:59:34,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314201524] [2023-12-02 12:59:34,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314201524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:59:34,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:59:34,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2023-12-02 12:59:34,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565468076] [2023-12-02 12:59:34,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:59:34,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-02 12:59:34,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:59:34,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-02 12:59:34,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1021, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 12:59:34,212 INFO L87 Difference]: Start difference. First operand 34611 states and 72236 transitions. Second operand has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:59:48,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:59:48,845 INFO L93 Difference]: Finished difference Result 63405 states and 131204 transitions. [2023-12-02 12:59:48,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-12-02 12:59:48,845 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 12:59:48,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:59:48,953 INFO L225 Difference]: With dead ends: 63405 [2023-12-02 12:59:48,953 INFO L226 Difference]: Without dead ends: 63404 [2023-12-02 12:59:48,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1310 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=1441, Invalid=5201, Unknown=0, NotChecked=0, Total=6642 [2023-12-02 12:59:48,954 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 3359 mSDsluCounter, 9601 mSDsCounter, 0 mSdLazyCounter, 9822 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3359 SdHoareTripleChecker+Valid, 10361 SdHoareTripleChecker+Invalid, 10223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 9822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:59:48,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3359 Valid, 10361 Invalid, 10223 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [401 Valid, 9822 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-12-02 12:59:49,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63404 states. [2023-12-02 12:59:49,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63404 to 38744. [2023-12-02 12:59:49,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38744 states, 38680 states have (on average 2.0985522233712515) internal successors, (81172), 38743 states have internal predecessors, (81172), 0 states have call successors, (0), 0 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 12:59:49,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38744 states to 38744 states and 81172 transitions. [2023-12-02 12:59:49,664 INFO L78 Accepts]: Start accepts. Automaton has 38744 states and 81172 transitions. Word has length 96 [2023-12-02 12:59:49,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:59:49,664 INFO L495 AbstractCegarLoop]: Abstraction has 38744 states and 81172 transitions. [2023-12-02 12:59:49,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 12:59:49,664 INFO L276 IsEmpty]: Start isEmpty. Operand 38744 states and 81172 transitions. [2023-12-02 12:59:49,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 12:59:49,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:59:49,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:59:49,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-02 12:59:49,674 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 12:59:49,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:59:49,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1359985227, now seen corresponding path program 24 times [2023-12-02 12:59:49,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:59:49,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229637750] [2023-12-02 12:59:49,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:59:49,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:59:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:59:52,668 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 12:59:52,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:59:52,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229637750] [2023-12-02 12:59:52,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229637750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:59:52,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:59:52,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2023-12-02 12:59:52,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420629668] [2023-12-02 12:59:52,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:59:52,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 12:59:52,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:59:52,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 12:59:52,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=968, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 12:59:52,669 INFO L87 Difference]: Start difference. First operand 38744 states and 81172 transitions. Second operand has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:00:06,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:00:06,049 INFO L93 Difference]: Finished difference Result 64991 states and 134698 transitions. [2023-12-02 13:00:06,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-12-02 13:00:06,050 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:00:06,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:00:06,164 INFO L225 Difference]: With dead ends: 64991 [2023-12-02 13:00:06,164 INFO L226 Difference]: Without dead ends: 64990 [2023-12-02 13:00:06,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1306 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1415, Invalid=5065, Unknown=0, NotChecked=0, Total=6480 [2023-12-02 13:00:06,165 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 3798 mSDsluCounter, 9589 mSDsCounter, 0 mSdLazyCounter, 9327 mSolverCounterSat, 563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3798 SdHoareTripleChecker+Valid, 10323 SdHoareTripleChecker+Invalid, 9890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 9327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:00:06,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3798 Valid, 10323 Invalid, 9890 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [563 Valid, 9327 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-12-02 13:00:06,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64990 states. [2023-12-02 13:00:06,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64990 to 34653. [2023-12-02 13:00:06,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34653 states, 34589 states have (on average 2.0909537714302235) internal successors, (72324), 34652 states have internal predecessors, (72324), 0 states have call successors, (0), 0 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 13:00:06,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34653 states to 34653 states and 72324 transitions. [2023-12-02 13:00:06,884 INFO L78 Accepts]: Start accepts. Automaton has 34653 states and 72324 transitions. Word has length 96 [2023-12-02 13:00:06,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:00:06,884 INFO L495 AbstractCegarLoop]: Abstraction has 34653 states and 72324 transitions. [2023-12-02 13:00:06,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:00:06,884 INFO L276 IsEmpty]: Start isEmpty. Operand 34653 states and 72324 transitions. [2023-12-02 13:00:06,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:00:06,893 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:00:06,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:00:06,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-02 13:00:06,894 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:00:06,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:00:06,894 INFO L85 PathProgramCache]: Analyzing trace with hash -845346869, now seen corresponding path program 25 times [2023-12-02 13:00:06,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:00:06,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930137675] [2023-12-02 13:00:06,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:00:06,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:00:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:00:10,558 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 13:00:10,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:00:10,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930137675] [2023-12-02 13:00:10,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930137675] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:00:10,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:00:10,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2023-12-02 13:00:10,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076783074] [2023-12-02 13:00:10,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:00:10,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 13:00:10,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:00:10,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 13:00:10,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=966, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:00:10,560 INFO L87 Difference]: Start difference. First operand 34653 states and 72324 transitions. Second operand has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:00:24,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:00:24,756 INFO L93 Difference]: Finished difference Result 60771 states and 125498 transitions. [2023-12-02 13:00:24,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-12-02 13:00:24,757 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:00:24,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:00:24,863 INFO L225 Difference]: With dead ends: 60771 [2023-12-02 13:00:24,863 INFO L226 Difference]: Without dead ends: 60770 [2023-12-02 13:00:24,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1249 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=1427, Invalid=5053, Unknown=0, NotChecked=0, Total=6480 [2023-12-02 13:00:24,864 INFO L413 NwaCegarLoop]: 733 mSDtfsCounter, 4145 mSDsluCounter, 8737 mSDsCounter, 0 mSdLazyCounter, 8761 mSolverCounterSat, 587 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4145 SdHoareTripleChecker+Valid, 9470 SdHoareTripleChecker+Invalid, 9348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 587 IncrementalHoareTripleChecker+Valid, 8761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-12-02 13:00:24,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4145 Valid, 9470 Invalid, 9348 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [587 Valid, 8761 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-12-02 13:00:24,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60770 states. [2023-12-02 13:00:25,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60770 to 36139. [2023-12-02 13:00:25,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36139 states, 36075 states have (on average 2.0938045738045736) internal successors, (75534), 36138 states have internal predecessors, (75534), 0 states have call successors, (0), 0 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 13:00:25,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36139 states to 36139 states and 75534 transitions. [2023-12-02 13:00:25,635 INFO L78 Accepts]: Start accepts. Automaton has 36139 states and 75534 transitions. Word has length 96 [2023-12-02 13:00:25,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:00:25,635 INFO L495 AbstractCegarLoop]: Abstraction has 36139 states and 75534 transitions. [2023-12-02 13:00:25,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:00:25,635 INFO L276 IsEmpty]: Start isEmpty. Operand 36139 states and 75534 transitions. [2023-12-02 13:00:25,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:00:25,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:00:25,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:00:25,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-02 13:00:25,643 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:00:25,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:00:25,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1064205749, now seen corresponding path program 26 times [2023-12-02 13:00:25,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:00:25,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876209156] [2023-12-02 13:00:25,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:00:25,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:00:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:00:28,429 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 13:00:28,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:00:28,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876209156] [2023-12-02 13:00:28,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876209156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:00:28,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:00:28,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2023-12-02 13:00:28,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888410812] [2023-12-02 13:00:28,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:00:28,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 13:00:28,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:00:28,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 13:00:28,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=969, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:00:28,431 INFO L87 Difference]: Start difference. First operand 36139 states and 75534 transitions. Second operand has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:00:42,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:00:42,868 INFO L93 Difference]: Finished difference Result 61878 states and 127849 transitions. [2023-12-02 13:00:42,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-02 13:00:42,868 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:00:42,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:00:42,973 INFO L225 Difference]: With dead ends: 61878 [2023-12-02 13:00:42,973 INFO L226 Difference]: Without dead ends: 61877 [2023-12-02 13:00:42,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1585 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=1649, Invalid=5833, Unknown=0, NotChecked=0, Total=7482 [2023-12-02 13:00:42,974 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 3899 mSDsluCounter, 8883 mSDsCounter, 0 mSdLazyCounter, 9112 mSolverCounterSat, 639 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3899 SdHoareTripleChecker+Valid, 9618 SdHoareTripleChecker+Invalid, 9751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 9112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:00:42,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3899 Valid, 9618 Invalid, 9751 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [639 Valid, 9112 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-02 13:00:43,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61877 states. [2023-12-02 13:00:43,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61877 to 36122. [2023-12-02 13:00:43,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36122 states, 36058 states have (on average 2.093848799156914) internal successors, (75500), 36121 states have internal predecessors, (75500), 0 states have call successors, (0), 0 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 13:00:43,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36122 states to 36122 states and 75500 transitions. [2023-12-02 13:00:43,637 INFO L78 Accepts]: Start accepts. Automaton has 36122 states and 75500 transitions. Word has length 96 [2023-12-02 13:00:43,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:00:43,637 INFO L495 AbstractCegarLoop]: Abstraction has 36122 states and 75500 transitions. [2023-12-02 13:00:43,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:00:43,637 INFO L276 IsEmpty]: Start isEmpty. Operand 36122 states and 75500 transitions. [2023-12-02 13:00:43,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:00:43,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:00:43,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:00:43,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-02 13:00:43,706 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:00:43,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:00:43,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1970252729, now seen corresponding path program 27 times [2023-12-02 13:00:43,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:00:43,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594802834] [2023-12-02 13:00:43,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:00:43,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:00:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:00:46,897 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 13:00:46,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:00:46,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594802834] [2023-12-02 13:00:46,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594802834] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:00:46,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:00:46,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2023-12-02 13:00:46,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949174493] [2023-12-02 13:00:46,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:00:46,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-02 13:00:46,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:00:46,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-02 13:00:46,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1025, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 13:00:46,899 INFO L87 Difference]: Start difference. First operand 36122 states and 75500 transitions. Second operand has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:01:03,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:01:03,001 INFO L93 Difference]: Finished difference Result 59332 states and 122537 transitions. [2023-12-02 13:01:03,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-12-02 13:01:03,002 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:01:03,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:01:03,101 INFO L225 Difference]: With dead ends: 59332 [2023-12-02 13:01:03,101 INFO L226 Difference]: Without dead ends: 59329 [2023-12-02 13:01:03,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2287 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=2357, Invalid=7743, Unknown=0, NotChecked=0, Total=10100 [2023-12-02 13:01:03,102 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 4119 mSDsluCounter, 9003 mSDsCounter, 0 mSdLazyCounter, 8504 mSolverCounterSat, 718 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4119 SdHoareTripleChecker+Valid, 9744 SdHoareTripleChecker+Invalid, 9222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 718 IncrementalHoareTripleChecker+Valid, 8504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:01:03,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4119 Valid, 9744 Invalid, 9222 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [718 Valid, 8504 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-12-02 13:01:03,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59329 states. [2023-12-02 13:01:03,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59329 to 31005. [2023-12-02 13:01:03,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31005 states, 30941 states have (on average 2.0825765165961023) internal successors, (64437), 31004 states have internal predecessors, (64437), 0 states have call successors, (0), 0 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 13:01:03,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31005 states to 31005 states and 64437 transitions. [2023-12-02 13:01:03,723 INFO L78 Accepts]: Start accepts. Automaton has 31005 states and 64437 transitions. Word has length 96 [2023-12-02 13:01:03,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:01:03,724 INFO L495 AbstractCegarLoop]: Abstraction has 31005 states and 64437 transitions. [2023-12-02 13:01:03,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:01:03,724 INFO L276 IsEmpty]: Start isEmpty. Operand 31005 states and 64437 transitions. [2023-12-02 13:01:03,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:01:03,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:01:03,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:01:03,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-02 13:01:03,734 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:01:03,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:01:03,734 INFO L85 PathProgramCache]: Analyzing trace with hash -691488687, now seen corresponding path program 28 times [2023-12-02 13:01:03,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:01:03,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686260492] [2023-12-02 13:01:03,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:01:03,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:01:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:01:07,060 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 13:01:07,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:01:07,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686260492] [2023-12-02 13:01:07,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686260492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:01:07,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:01:07,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2023-12-02 13:01:07,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012491248] [2023-12-02 13:01:07,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:01:07,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-02 13:01:07,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:01:07,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-02 13:01:07,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1017, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 13:01:07,062 INFO L87 Difference]: Start difference. First operand 31005 states and 64437 transitions. Second operand has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:01:20,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:01:20,653 INFO L93 Difference]: Finished difference Result 56028 states and 115177 transitions. [2023-12-02 13:01:20,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-02 13:01:20,654 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:01:20,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:01:20,786 INFO L225 Difference]: With dead ends: 56028 [2023-12-02 13:01:20,786 INFO L226 Difference]: Without dead ends: 56024 [2023-12-02 13:01:20,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1297 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1317, Invalid=4845, Unknown=0, NotChecked=0, Total=6162 [2023-12-02 13:01:20,787 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 3672 mSDsluCounter, 9796 mSDsCounter, 0 mSdLazyCounter, 10744 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3672 SdHoareTripleChecker+Valid, 10531 SdHoareTripleChecker+Invalid, 11111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 10744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:01:20,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3672 Valid, 10531 Invalid, 11111 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [367 Valid, 10744 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-12-02 13:01:20,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56024 states. [2023-12-02 13:01:21,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56024 to 31269. [2023-12-02 13:01:21,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31269 states, 31205 states have (on average 2.0823265502323345) internal successors, (64979), 31268 states have internal predecessors, (64979), 0 states have call successors, (0), 0 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 13:01:21,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31269 states to 31269 states and 64979 transitions. [2023-12-02 13:01:21,316 INFO L78 Accepts]: Start accepts. Automaton has 31269 states and 64979 transitions. Word has length 96 [2023-12-02 13:01:21,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:01:21,316 INFO L495 AbstractCegarLoop]: Abstraction has 31269 states and 64979 transitions. [2023-12-02 13:01:21,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:01:21,316 INFO L276 IsEmpty]: Start isEmpty. Operand 31269 states and 64979 transitions. [2023-12-02 13:01:21,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:01:21,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:01:21,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:01:21,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-02 13:01:21,324 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:01:21,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:01:21,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1400939425, now seen corresponding path program 29 times [2023-12-02 13:01:21,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:01:21,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603314274] [2023-12-02 13:01:21,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:01:21,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:01:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:01:24,977 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 13:01:24,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:01:24,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603314274] [2023-12-02 13:01:24,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603314274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:01:24,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:01:24,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2023-12-02 13:01:24,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386414960] [2023-12-02 13:01:24,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:01:24,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-02 13:01:24,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:01:24,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-02 13:01:24,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1022, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 13:01:24,979 INFO L87 Difference]: Start difference. First operand 31269 states and 64979 transitions. Second operand has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:01:39,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:01:39,221 INFO L93 Difference]: Finished difference Result 52423 states and 107789 transitions. [2023-12-02 13:01:39,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-02 13:01:39,222 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:01:39,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:01:39,310 INFO L225 Difference]: With dead ends: 52423 [2023-12-02 13:01:39,310 INFO L226 Difference]: Without dead ends: 52422 [2023-12-02 13:01:39,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1188 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=1433, Invalid=5047, Unknown=0, NotChecked=0, Total=6480 [2023-12-02 13:01:39,311 INFO L413 NwaCegarLoop]: 756 mSDtfsCounter, 3650 mSDsluCounter, 9717 mSDsCounter, 0 mSdLazyCounter, 9864 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3650 SdHoareTripleChecker+Valid, 10473 SdHoareTripleChecker+Invalid, 10178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 9864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:01:39,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3650 Valid, 10473 Invalid, 10178 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [314 Valid, 9864 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-12-02 13:01:39,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52422 states. [2023-12-02 13:01:39,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52422 to 32386. [2023-12-02 13:01:39,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32386 states, 32322 states have (on average 2.0852360621248685) internal successors, (67399), 32385 states have internal predecessors, (67399), 0 states have call successors, (0), 0 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 13:01:39,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32386 states to 32386 states and 67399 transitions. [2023-12-02 13:01:39,879 INFO L78 Accepts]: Start accepts. Automaton has 32386 states and 67399 transitions. Word has length 96 [2023-12-02 13:01:39,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:01:39,879 INFO L495 AbstractCegarLoop]: Abstraction has 32386 states and 67399 transitions. [2023-12-02 13:01:39,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.909090909090909) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:01:39,879 INFO L276 IsEmpty]: Start isEmpty. Operand 32386 states and 67399 transitions. [2023-12-02 13:01:39,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:01:39,887 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:01:39,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:01:39,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-02 13:01:39,887 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:01:39,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:01:39,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1686422787, now seen corresponding path program 30 times [2023-12-02 13:01:39,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:01:39,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708781710] [2023-12-02 13:01:39,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:01:39,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:01:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:01:42,927 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 13:01:42,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:01:42,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708781710] [2023-12-02 13:01:42,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708781710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:01:42,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:01:42,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2023-12-02 13:01:42,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030727009] [2023-12-02 13:01:42,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:01:42,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 13:01:42,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:01:42,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 13:01:42,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=968, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:01:42,929 INFO L87 Difference]: Start difference. First operand 32386 states and 67399 transitions. Second operand has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:01:57,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:01:57,409 INFO L93 Difference]: Finished difference Result 54694 states and 112571 transitions. [2023-12-02 13:01:57,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-12-02 13:01:57,410 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:01:57,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:01:57,502 INFO L225 Difference]: With dead ends: 54694 [2023-12-02 13:01:57,502 INFO L226 Difference]: Without dead ends: 54693 [2023-12-02 13:01:57,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1228 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=1448, Invalid=5032, Unknown=0, NotChecked=0, Total=6480 [2023-12-02 13:01:57,503 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 3528 mSDsluCounter, 9711 mSDsCounter, 0 mSdLazyCounter, 10902 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3528 SdHoareTripleChecker+Valid, 10481 SdHoareTripleChecker+Invalid, 11271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 10902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:01:57,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3528 Valid, 10481 Invalid, 11271 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [369 Valid, 10902 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-12-02 13:01:57,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54693 states. [2023-12-02 13:01:58,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54693 to 32474. [2023-12-02 13:01:58,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32474 states, 32410 states have (on average 2.0855291576673864) internal successors, (67592), 32473 states have internal predecessors, (67592), 0 states have call successors, (0), 0 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 13:01:58,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32474 states to 32474 states and 67592 transitions. [2023-12-02 13:01:58,157 INFO L78 Accepts]: Start accepts. Automaton has 32474 states and 67592 transitions. Word has length 96 [2023-12-02 13:01:58,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:01:58,157 INFO L495 AbstractCegarLoop]: Abstraction has 32474 states and 67592 transitions. [2023-12-02 13:01:58,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 33 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:01:58,157 INFO L276 IsEmpty]: Start isEmpty. Operand 32474 states and 67592 transitions. [2023-12-02 13:01:58,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:01:58,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:01:58,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:01:58,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-02 13:01:58,165 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:01:58,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:01:58,165 INFO L85 PathProgramCache]: Analyzing trace with hash -282919687, now seen corresponding path program 31 times [2023-12-02 13:01:58,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:01:58,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472081020] [2023-12-02 13:01:58,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:01:58,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:01:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:02:00,585 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 13:02:00,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:02:00,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472081020] [2023-12-02 13:02:00,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472081020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:02:00,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:02:00,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2023-12-02 13:02:00,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441294135] [2023-12-02 13:02:00,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:02:00,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 13:02:00,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:02:00,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 13:02:00,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=910, Unknown=0, NotChecked=0, Total=992 [2023-12-02 13:02:00,587 INFO L87 Difference]: Start difference. First operand 32474 states and 67592 transitions. Second operand has 32 states, 31 states have (on average 3.096774193548387) internal successors, (96), 32 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:02:14,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:02:14,122 INFO L93 Difference]: Finished difference Result 55222 states and 113687 transitions. [2023-12-02 13:02:14,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-02 13:02:14,123 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.096774193548387) internal successors, (96), 32 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:02:14,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:02:14,217 INFO L225 Difference]: With dead ends: 55222 [2023-12-02 13:02:14,217 INFO L226 Difference]: Without dead ends: 55221 [2023-12-02 13:02:14,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1456 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=1629, Invalid=5681, Unknown=0, NotChecked=0, Total=7310 [2023-12-02 13:02:14,218 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 3716 mSDsluCounter, 8559 mSDsCounter, 0 mSdLazyCounter, 9240 mSolverCounterSat, 469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3716 SdHoareTripleChecker+Valid, 9325 SdHoareTripleChecker+Invalid, 9709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 9240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-12-02 13:02:14,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3716 Valid, 9325 Invalid, 9709 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [469 Valid, 9240 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-12-02 13:02:14,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55221 states. [2023-12-02 13:02:14,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55221 to 33748. [2023-12-02 13:02:14,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33748 states, 33684 states have (on average 2.0885583659897873) internal successors, (70351), 33747 states have internal predecessors, (70351), 0 states have call successors, (0), 0 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 13:02:14,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33748 states to 33748 states and 70351 transitions. [2023-12-02 13:02:14,870 INFO L78 Accepts]: Start accepts. Automaton has 33748 states and 70351 transitions. Word has length 96 [2023-12-02 13:02:14,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:02:14,870 INFO L495 AbstractCegarLoop]: Abstraction has 33748 states and 70351 transitions. [2023-12-02 13:02:14,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.096774193548387) internal successors, (96), 32 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:02:14,871 INFO L276 IsEmpty]: Start isEmpty. Operand 33748 states and 70351 transitions. [2023-12-02 13:02:14,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:02:14,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:02:14,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:02:14,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-02 13:02:14,879 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:02:14,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:02:14,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1452049611, now seen corresponding path program 32 times [2023-12-02 13:02:14,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:02:14,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308020910] [2023-12-02 13:02:14,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:02:14,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:02:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:02:16,262 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 13:02:16,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:02:16,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308020910] [2023-12-02 13:02:16,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308020910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:02:16,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:02:16,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-02 13:02:16,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510464954] [2023-12-02 13:02:16,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:02:16,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-02 13:02:16,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:02:16,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-02 13:02:16,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2023-12-02 13:02:16,264 INFO L87 Difference]: Start difference. First operand 33748 states and 70351 transitions. Second operand has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:02:22,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:02:22,255 INFO L93 Difference]: Finished difference Result 49199 states and 101882 transitions. [2023-12-02 13:02:22,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-02 13:02:22,255 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:02:22,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:02:22,340 INFO L225 Difference]: With dead ends: 49199 [2023-12-02 13:02:22,340 INFO L226 Difference]: Without dead ends: 49199 [2023-12-02 13:02:22,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=711, Invalid=2711, Unknown=0, NotChecked=0, Total=3422 [2023-12-02 13:02:22,341 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 2177 mSDsluCounter, 7992 mSDsCounter, 0 mSdLazyCounter, 6501 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2177 SdHoareTripleChecker+Valid, 8660 SdHoareTripleChecker+Invalid, 6710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 6501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-02 13:02:22,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2177 Valid, 8660 Invalid, 6710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 6501 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-02 13:02:22,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49199 states. [2023-12-02 13:02:22,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49199 to 33963. [2023-12-02 13:02:22,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33963 states, 33899 states have (on average 2.088262190625092) internal successors, (70790), 33962 states have internal predecessors, (70790), 0 states have call successors, (0), 0 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 13:02:22,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33963 states to 33963 states and 70790 transitions. [2023-12-02 13:02:22,962 INFO L78 Accepts]: Start accepts. Automaton has 33963 states and 70790 transitions. Word has length 96 [2023-12-02 13:02:22,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:02:22,963 INFO L495 AbstractCegarLoop]: Abstraction has 33963 states and 70790 transitions. [2023-12-02 13:02:22,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:02:22,963 INFO L276 IsEmpty]: Start isEmpty. Operand 33963 states and 70790 transitions. [2023-12-02 13:02:22,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:02:22,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:02:22,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:02:22,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-02 13:02:22,971 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:02:22,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:02:22,971 INFO L85 PathProgramCache]: Analyzing trace with hash 341255375, now seen corresponding path program 33 times [2023-12-02 13:02:22,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:02:22,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223072945] [2023-12-02 13:02:22,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:02:22,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:02:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:02:25,973 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 13:02:25,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:02:25,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223072945] [2023-12-02 13:02:25,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223072945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:02:25,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:02:25,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2023-12-02 13:02:25,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605121011] [2023-12-02 13:02:25,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:02:25,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-02 13:02:25,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:02:25,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-02 13:02:25,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1094, Unknown=0, NotChecked=0, Total=1190 [2023-12-02 13:02:25,975 INFO L87 Difference]: Start difference. First operand 33963 states and 70790 transitions. Second operand has 35 states, 34 states have (on average 2.823529411764706) internal successors, (96), 35 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:02:43,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:02:43,688 INFO L93 Difference]: Finished difference Result 57225 states and 117930 transitions. [2023-12-02 13:02:43,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-12-02 13:02:43,689 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.823529411764706) internal successors, (96), 35 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:02:43,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:02:43,791 INFO L225 Difference]: With dead ends: 57225 [2023-12-02 13:02:43,791 INFO L226 Difference]: Without dead ends: 57224 [2023-12-02 13:02:43,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2136 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=2155, Invalid=7745, Unknown=0, NotChecked=0, Total=9900 [2023-12-02 13:02:43,792 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 3668 mSDsluCounter, 10082 mSDsCounter, 0 mSdLazyCounter, 10494 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3668 SdHoareTripleChecker+Valid, 10849 SdHoareTripleChecker+Invalid, 11145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 10494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:02:43,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3668 Valid, 10849 Invalid, 11145 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [651 Valid, 10494 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-12-02 13:02:43,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57224 states. [2023-12-02 13:02:44,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57224 to 35171. [2023-12-02 13:02:44,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35171 states, 35107 states have (on average 2.0912068818184406) internal successors, (73416), 35170 states have internal predecessors, (73416), 0 states have call successors, (0), 0 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 13:02:44,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35171 states to 35171 states and 73416 transitions. [2023-12-02 13:02:44,485 INFO L78 Accepts]: Start accepts. Automaton has 35171 states and 73416 transitions. Word has length 96 [2023-12-02 13:02:44,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:02:44,485 INFO L495 AbstractCegarLoop]: Abstraction has 35171 states and 73416 transitions. [2023-12-02 13:02:44,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.823529411764706) internal successors, (96), 35 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:02:44,486 INFO L276 IsEmpty]: Start isEmpty. Operand 35171 states and 73416 transitions. [2023-12-02 13:02:44,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:02:44,494 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:02:44,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:02:44,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-02 13:02:44,494 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:02:44,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:02:44,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2076224673, now seen corresponding path program 34 times [2023-12-02 13:02:44,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:02:44,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112162190] [2023-12-02 13:02:44,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:02:44,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:02:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:02:45,928 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 13:02:45,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:02:45,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112162190] [2023-12-02 13:02:45,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112162190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:02:45,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:02:45,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-02 13:02:45,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65258274] [2023-12-02 13:02:45,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:02:45,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-02 13:02:45,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:02:45,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-02 13:02:45,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2023-12-02 13:02:45,929 INFO L87 Difference]: Start difference. First operand 35171 states and 73416 transitions. Second operand has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:02:52,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:02:52,065 INFO L93 Difference]: Finished difference Result 50194 states and 104045 transitions. [2023-12-02 13:02:52,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-02 13:02:52,066 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:02:52,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:02:52,153 INFO L225 Difference]: With dead ends: 50194 [2023-12-02 13:02:52,153 INFO L226 Difference]: Without dead ends: 50194 [2023-12-02 13:02:52,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=818, Invalid=2842, Unknown=0, NotChecked=0, Total=3660 [2023-12-02 13:02:52,154 INFO L413 NwaCegarLoop]: 672 mSDtfsCounter, 2059 mSDsluCounter, 7482 mSDsCounter, 0 mSdLazyCounter, 5629 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 8154 SdHoareTripleChecker+Invalid, 5888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 5629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:02:52,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2059 Valid, 8154 Invalid, 5888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 5629 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-02 13:02:52,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50194 states. [2023-12-02 13:02:52,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50194 to 35141. [2023-12-02 13:02:52,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35141 states, 35077 states have (on average 2.0912563788237306) internal successors, (73355), 35140 states have internal predecessors, (73355), 0 states have call successors, (0), 0 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 13:02:52,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35141 states to 35141 states and 73355 transitions. [2023-12-02 13:02:52,742 INFO L78 Accepts]: Start accepts. Automaton has 35141 states and 73355 transitions. Word has length 96 [2023-12-02 13:02:52,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:02:52,742 INFO L495 AbstractCegarLoop]: Abstraction has 35141 states and 73355 transitions. [2023-12-02 13:02:52,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:02:52,742 INFO L276 IsEmpty]: Start isEmpty. Operand 35141 states and 73355 transitions. [2023-12-02 13:02:52,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:02:52,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:02:52,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:02:52,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-02 13:02:52,750 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:02:52,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:02:52,750 INFO L85 PathProgramCache]: Analyzing trace with hash 495113557, now seen corresponding path program 35 times [2023-12-02 13:02:52,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:02:52,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579442737] [2023-12-02 13:02:52,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:02:52,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:02:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:02:54,087 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 13:02:54,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:02:54,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579442737] [2023-12-02 13:02:54,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579442737] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:02:54,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:02:54,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-02 13:02:54,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663175223] [2023-12-02 13:02:54,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:02:54,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-02 13:02:54,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:02:54,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-02 13:02:54,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=626, Unknown=0, NotChecked=0, Total=702 [2023-12-02 13:02:54,089 INFO L87 Difference]: Start difference. First operand 35141 states and 73355 transitions. Second operand has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:02:58,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:02:58,785 INFO L93 Difference]: Finished difference Result 51299 states and 106403 transitions. [2023-12-02 13:02:58,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-02 13:02:58,786 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:02:58,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:02:58,872 INFO L225 Difference]: With dead ends: 51299 [2023-12-02 13:02:58,872 INFO L226 Difference]: Without dead ends: 51299 [2023-12-02 13:02:58,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=678, Invalid=2628, Unknown=0, NotChecked=0, Total=3306 [2023-12-02 13:02:58,873 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 2192 mSDsluCounter, 6203 mSDsCounter, 0 mSdLazyCounter, 4057 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2192 SdHoareTripleChecker+Valid, 6872 SdHoareTripleChecker+Invalid, 4219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 4057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:02:58,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2192 Valid, 6872 Invalid, 4219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 4057 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-02 13:02:58,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51299 states. [2023-12-02 13:02:59,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51299 to 35243. [2023-12-02 13:02:59,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35243 states, 35179 states have (on average 2.091105489070184) internal successors, (73563), 35242 states have internal predecessors, (73563), 0 states have call successors, (0), 0 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 13:02:59,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35243 states to 35243 states and 73563 transitions. [2023-12-02 13:02:59,463 INFO L78 Accepts]: Start accepts. Automaton has 35243 states and 73563 transitions. Word has length 96 [2023-12-02 13:02:59,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:02:59,463 INFO L495 AbstractCegarLoop]: Abstraction has 35243 states and 73563 transitions. [2023-12-02 13:02:59,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:02:59,464 INFO L276 IsEmpty]: Start isEmpty. Operand 35243 states and 73563 transitions. [2023-12-02 13:02:59,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:02:59,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:02:59,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:02:59,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-02 13:02:59,472 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:02:59,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:02:59,472 INFO L85 PathProgramCache]: Analyzing trace with hash 537348821, now seen corresponding path program 36 times [2023-12-02 13:02:59,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:02:59,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566587495] [2023-12-02 13:02:59,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:02:59,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:02:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:03:00,876 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 13:03:00,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:03:00,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566587495] [2023-12-02 13:03:00,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566587495] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:03:00,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:03:00,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-02 13:03:00,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71858164] [2023-12-02 13:03:00,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:03:00,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-02 13:03:00,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:03:00,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-02 13:03:00,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=626, Unknown=0, NotChecked=0, Total=702 [2023-12-02 13:03:00,878 INFO L87 Difference]: Start difference. First operand 35243 states and 73563 transitions. Second operand has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:03:05,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:03:05,140 INFO L93 Difference]: Finished difference Result 49820 states and 103388 transitions. [2023-12-02 13:03:05,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 13:03:05,141 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:03:05,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:03:05,227 INFO L225 Difference]: With dead ends: 49820 [2023-12-02 13:03:05,227 INFO L226 Difference]: Without dead ends: 49820 [2023-12-02 13:03:05,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=602, Invalid=2478, Unknown=0, NotChecked=0, Total=3080 [2023-12-02 13:03:05,228 INFO L413 NwaCegarLoop]: 688 mSDtfsCounter, 2233 mSDsluCounter, 7267 mSDsCounter, 0 mSdLazyCounter, 4639 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2233 SdHoareTripleChecker+Valid, 7955 SdHoareTripleChecker+Invalid, 4731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 4639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:03:05,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2233 Valid, 7955 Invalid, 4731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 4639 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-02 13:03:05,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49820 states. [2023-12-02 13:03:05,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49820 to 35361. [2023-12-02 13:03:05,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35361 states, 35297 states have (on average 2.090857579964303) internal successors, (73801), 35360 states have internal predecessors, (73801), 0 states have call successors, (0), 0 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 13:03:05,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35361 states to 35361 states and 73801 transitions. [2023-12-02 13:03:05,871 INFO L78 Accepts]: Start accepts. Automaton has 35361 states and 73801 transitions. Word has length 96 [2023-12-02 13:03:05,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:03:05,871 INFO L495 AbstractCegarLoop]: Abstraction has 35361 states and 73801 transitions. [2023-12-02 13:03:05,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 27 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:03:05,871 INFO L276 IsEmpty]: Start isEmpty. Operand 35361 states and 73801 transitions. [2023-12-02 13:03:05,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:03:05,879 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:03:05,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:03:05,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-02 13:03:05,879 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:03:05,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:03:05,880 INFO L85 PathProgramCache]: Analyzing trace with hash -899797566, now seen corresponding path program 12 times [2023-12-02 13:03:05,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:03:05,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105295090] [2023-12-02 13:03:05,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:03:05,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:03:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:03:07,028 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 13:03:07,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:03:07,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105295090] [2023-12-02 13:03:07,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105295090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:03:07,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:03:07,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 13:03:07,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105517132] [2023-12-02 13:03:07,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:03:07,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:03:07,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:03:07,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:03:07,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2023-12-02 13:03:07,030 INFO L87 Difference]: Start difference. First operand 35361 states and 73801 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:03:16,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:03:16,309 INFO L93 Difference]: Finished difference Result 56476 states and 116897 transitions. [2023-12-02 13:03:16,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-02 13:03:16,310 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:03:16,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:03:16,406 INFO L225 Difference]: With dead ends: 56476 [2023-12-02 13:03:16,406 INFO L226 Difference]: Without dead ends: 56476 [2023-12-02 13:03:16,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 738 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1036, Invalid=3386, Unknown=0, NotChecked=0, Total=4422 [2023-12-02 13:03:16,407 INFO L413 NwaCegarLoop]: 964 mSDtfsCounter, 3467 mSDsluCounter, 10990 mSDsCounter, 0 mSdLazyCounter, 8447 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3467 SdHoareTripleChecker+Valid, 11954 SdHoareTripleChecker+Invalid, 8485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 8447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:03:16,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3467 Valid, 11954 Invalid, 8485 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 8447 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-02 13:03:16,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56476 states. [2023-12-02 13:03:16,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56476 to 37377. [2023-12-02 13:03:16,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37377 states, 37313 states have (on average 2.0939618899579235) internal successors, (78132), 37376 states have internal predecessors, (78132), 0 states have call successors, (0), 0 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 13:03:17,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37377 states to 37377 states and 78132 transitions. [2023-12-02 13:03:17,040 INFO L78 Accepts]: Start accepts. Automaton has 37377 states and 78132 transitions. Word has length 96 [2023-12-02 13:03:17,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:03:17,040 INFO L495 AbstractCegarLoop]: Abstraction has 37377 states and 78132 transitions. [2023-12-02 13:03:17,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:03:17,040 INFO L276 IsEmpty]: Start isEmpty. Operand 37377 states and 78132 transitions. [2023-12-02 13:03:17,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:03:17,050 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:03:17,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:03:17,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-02 13:03:17,051 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:03:17,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:03:17,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1097311896, now seen corresponding path program 13 times [2023-12-02 13:03:17,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:03:17,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340613761] [2023-12-02 13:03:17,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:03:17,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:03:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:03:18,353 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 13:03:18,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:03:18,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340613761] [2023-12-02 13:03:18,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340613761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:03:18,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:03:18,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 13:03:18,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489709358] [2023-12-02 13:03:18,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:03:18,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:03:18,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:03:18,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:03:18,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2023-12-02 13:03:18,355 INFO L87 Difference]: Start difference. First operand 37377 states and 78132 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:03:25,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:03:25,822 INFO L93 Difference]: Finished difference Result 56112 states and 116150 transitions. [2023-12-02 13:03:25,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-02 13:03:25,823 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:03:25,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:03:25,916 INFO L225 Difference]: With dead ends: 56112 [2023-12-02 13:03:25,916 INFO L226 Difference]: Without dead ends: 56112 [2023-12-02 13:03:25,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=919, Invalid=3113, Unknown=0, NotChecked=0, Total=4032 [2023-12-02 13:03:25,917 INFO L413 NwaCegarLoop]: 892 mSDtfsCounter, 3474 mSDsluCounter, 9343 mSDsCounter, 0 mSdLazyCounter, 5827 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3474 SdHoareTripleChecker+Valid, 10235 SdHoareTripleChecker+Invalid, 5873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 5827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:03:25,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3474 Valid, 10235 Invalid, 5873 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 5827 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-02 13:03:25,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56112 states. [2023-12-02 13:03:26,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56112 to 37395. [2023-12-02 13:03:26,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37395 states, 37331 states have (on average 2.0939165840722187) internal successors, (78168), 37394 states have internal predecessors, (78168), 0 states have call successors, (0), 0 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 13:03:26,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37395 states to 37395 states and 78168 transitions. [2023-12-02 13:03:26,559 INFO L78 Accepts]: Start accepts. Automaton has 37395 states and 78168 transitions. Word has length 96 [2023-12-02 13:03:26,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:03:26,559 INFO L495 AbstractCegarLoop]: Abstraction has 37395 states and 78168 transitions. [2023-12-02 13:03:26,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:03:26,560 INFO L276 IsEmpty]: Start isEmpty. Operand 37395 states and 78168 transitions. [2023-12-02 13:03:26,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:03:26,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:03:26,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:03:26,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-02 13:03:26,568 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:03:26,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:03:26,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1100742666, now seen corresponding path program 14 times [2023-12-02 13:03:26,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:03:26,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379119911] [2023-12-02 13:03:26,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:03:26,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:03:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:03:27,915 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 13:03:27,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:03:27,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379119911] [2023-12-02 13:03:27,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379119911] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:03:27,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:03:27,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 13:03:27,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167284930] [2023-12-02 13:03:27,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:03:27,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:03:27,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:03:27,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:03:27,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2023-12-02 13:03:27,916 INFO L87 Difference]: Start difference. First operand 37395 states and 78168 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:03:35,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:03:35,627 INFO L93 Difference]: Finished difference Result 56064 states and 116051 transitions. [2023-12-02 13:03:35,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-02 13:03:35,627 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:03:35,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:03:35,721 INFO L225 Difference]: With dead ends: 56064 [2023-12-02 13:03:35,721 INFO L226 Difference]: Without dead ends: 56064 [2023-12-02 13:03:35,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=816, Invalid=2844, Unknown=0, NotChecked=0, Total=3660 [2023-12-02 13:03:35,722 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 3328 mSDsluCounter, 9646 mSDsCounter, 0 mSdLazyCounter, 6021 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3328 SdHoareTripleChecker+Valid, 10516 SdHoareTripleChecker+Invalid, 6057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 6021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:03:35,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3328 Valid, 10516 Invalid, 6057 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [36 Valid, 6021 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-02 13:03:35,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56064 states. [2023-12-02 13:03:36,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56064 to 37405. [2023-12-02 13:03:36,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37405 states, 37341 states have (on average 2.0938914330092926) internal successors, (78188), 37404 states have internal predecessors, (78188), 0 states have call successors, (0), 0 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 13:03:36,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37405 states to 37405 states and 78188 transitions. [2023-12-02 13:03:36,396 INFO L78 Accepts]: Start accepts. Automaton has 37405 states and 78188 transitions. Word has length 96 [2023-12-02 13:03:36,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:03:36,396 INFO L495 AbstractCegarLoop]: Abstraction has 37405 states and 78188 transitions. [2023-12-02 13:03:36,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:03:36,397 INFO L276 IsEmpty]: Start isEmpty. Operand 37405 states and 78188 transitions. [2023-12-02 13:03:36,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:03:36,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:03:36,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:03:36,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-02 13:03:36,406 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:03:36,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:03:36,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1100975166, now seen corresponding path program 15 times [2023-12-02 13:03:36,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:03:36,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507472515] [2023-12-02 13:03:36,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:03:36,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:03:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:03:38,069 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 13:03:38,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:03:38,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507472515] [2023-12-02 13:03:38,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507472515] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:03:38,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:03:38,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 13:03:38,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517690259] [2023-12-02 13:03:38,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:03:38,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:03:38,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:03:38,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:03:38,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=681, Unknown=0, NotChecked=0, Total=756 [2023-12-02 13:03:38,070 INFO L87 Difference]: Start difference. First operand 37405 states and 78188 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:03:44,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:03:44,737 INFO L93 Difference]: Finished difference Result 56018 states and 115958 transitions. [2023-12-02 13:03:44,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 13:03:44,738 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:03:44,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:03:44,842 INFO L225 Difference]: With dead ends: 56018 [2023-12-02 13:03:44,842 INFO L226 Difference]: Without dead ends: 56018 [2023-12-02 13:03:44,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=727, Invalid=2579, Unknown=0, NotChecked=0, Total=3306 [2023-12-02 13:03:44,843 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 3531 mSDsluCounter, 8263 mSDsCounter, 0 mSdLazyCounter, 5047 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3531 SdHoareTripleChecker+Valid, 9111 SdHoareTripleChecker+Invalid, 5090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 5047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:03:44,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3531 Valid, 9111 Invalid, 5090 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [43 Valid, 5047 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-02 13:03:44,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56018 states. [2023-12-02 13:03:45,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56018 to 37361. [2023-12-02 13:03:45,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37361 states, 37297 states have (on average 2.0940021985682495) internal successors, (78100), 37360 states have internal predecessors, (78100), 0 states have call successors, (0), 0 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 13:03:45,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37361 states to 37361 states and 78100 transitions. [2023-12-02 13:03:45,488 INFO L78 Accepts]: Start accepts. Automaton has 37361 states and 78100 transitions. Word has length 96 [2023-12-02 13:03:45,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:03:45,488 INFO L495 AbstractCegarLoop]: Abstraction has 37361 states and 78100 transitions. [2023-12-02 13:03:45,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:03:45,488 INFO L276 IsEmpty]: Start isEmpty. Operand 37361 states and 78100 transitions. [2023-12-02 13:03:45,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:03:45,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:03:45,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:03:45,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-02 13:03:45,497 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:03:45,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:03:45,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1778633380, now seen corresponding path program 16 times [2023-12-02 13:03:45,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:03:45,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495477032] [2023-12-02 13:03:45,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:03:45,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:03:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:03:46,736 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 13:03:46,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:03:46,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495477032] [2023-12-02 13:03:46,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495477032] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:03:46,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:03:46,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 13:03:46,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830606430] [2023-12-02 13:03:46,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:03:46,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:03:46,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:03:46,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:03:46,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2023-12-02 13:03:46,738 INFO L87 Difference]: Start difference. First operand 37361 states and 78100 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:03:53,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:03:53,484 INFO L93 Difference]: Finished difference Result 55604 states and 115145 transitions. [2023-12-02 13:03:53,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-02 13:03:53,484 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:03:53,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:03:53,579 INFO L225 Difference]: With dead ends: 55604 [2023-12-02 13:03:53,579 INFO L226 Difference]: Without dead ends: 55604 [2023-12-02 13:03:53,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=891, Invalid=3015, Unknown=0, NotChecked=0, Total=3906 [2023-12-02 13:03:53,580 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 3585 mSDsluCounter, 8783 mSDsCounter, 0 mSdLazyCounter, 5390 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3585 SdHoareTripleChecker+Valid, 9676 SdHoareTripleChecker+Invalid, 5438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 5390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-02 13:03:53,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3585 Valid, 9676 Invalid, 5438 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 5390 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-02 13:03:53,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55604 states. [2023-12-02 13:03:54,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55604 to 37363. [2023-12-02 13:03:54,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37363 states, 37299 states have (on average 2.0939971581007533) internal successors, (78104), 37362 states have internal predecessors, (78104), 0 states have call successors, (0), 0 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 13:03:54,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37363 states to 37363 states and 78104 transitions. [2023-12-02 13:03:54,216 INFO L78 Accepts]: Start accepts. Automaton has 37363 states and 78104 transitions. Word has length 96 [2023-12-02 13:03:54,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:03:54,217 INFO L495 AbstractCegarLoop]: Abstraction has 37363 states and 78104 transitions. [2023-12-02 13:03:54,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:03:54,217 INFO L276 IsEmpty]: Start isEmpty. Operand 37363 states and 78104 transitions. [2023-12-02 13:03:54,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:03:54,224 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:03:54,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:03:54,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-02 13:03:54,225 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:03:54,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:03:54,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1775202610, now seen corresponding path program 17 times [2023-12-02 13:03:54,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:03:54,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811849161] [2023-12-02 13:03:54,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:03:54,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:03:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:03:55,581 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 13:03:55,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:03:55,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811849161] [2023-12-02 13:03:55,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811849161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:03:55,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:03:55,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 13:03:55,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343025286] [2023-12-02 13:03:55,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:03:55,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:03:55,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:03:55,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:03:55,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2023-12-02 13:03:55,583 INFO L87 Difference]: Start difference. First operand 37363 states and 78104 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:04:02,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:04:02,254 INFO L93 Difference]: Finished difference Result 55488 states and 114901 transitions. [2023-12-02 13:04:02,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 13:04:02,254 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:04:02,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:04:02,349 INFO L225 Difference]: With dead ends: 55488 [2023-12-02 13:04:02,349 INFO L226 Difference]: Without dead ends: 55488 [2023-12-02 13:04:02,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=695, Invalid=2497, Unknown=0, NotChecked=0, Total=3192 [2023-12-02 13:04:02,350 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 3237 mSDsluCounter, 9032 mSDsCounter, 0 mSdLazyCounter, 5889 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3237 SdHoareTripleChecker+Valid, 9853 SdHoareTripleChecker+Invalid, 5938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 5889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:04:02,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3237 Valid, 9853 Invalid, 5938 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 5889 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-02 13:04:02,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55488 states. [2023-12-02 13:04:02,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55488 to 37379. [2023-12-02 13:04:02,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37379 states, 37315 states have (on average 2.09395685381214) internal successors, (78136), 37378 states have internal predecessors, (78136), 0 states have call successors, (0), 0 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 13:04:03,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37379 states to 37379 states and 78136 transitions. [2023-12-02 13:04:03,042 INFO L78 Accepts]: Start accepts. Automaton has 37379 states and 78136 transitions. Word has length 96 [2023-12-02 13:04:03,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:04:03,042 INFO L495 AbstractCegarLoop]: Abstraction has 37379 states and 78136 transitions. [2023-12-02 13:04:03,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:04:03,043 INFO L276 IsEmpty]: Start isEmpty. Operand 37379 states and 78136 transitions. [2023-12-02 13:04:03,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:04:03,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:04:03,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:04:03,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-12-02 13:04:03,051 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:04:03,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:04:03,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1774970110, now seen corresponding path program 18 times [2023-12-02 13:04:03,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:04:03,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445012899] [2023-12-02 13:04:03,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:04:03,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:04:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:04:04,484 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 13:04:04,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:04:04,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445012899] [2023-12-02 13:04:04,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445012899] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:04:04,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:04:04,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 13:04:04,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240597219] [2023-12-02 13:04:04,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:04:04,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:04:04,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:04:04,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:04:04,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2023-12-02 13:04:04,485 INFO L87 Difference]: Start difference. First operand 37379 states and 78136 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:04:11,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:04:11,096 INFO L93 Difference]: Finished difference Result 55478 states and 114881 transitions. [2023-12-02 13:04:11,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 13:04:11,097 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:04:11,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:04:11,191 INFO L225 Difference]: With dead ends: 55478 [2023-12-02 13:04:11,191 INFO L226 Difference]: Without dead ends: 55478 [2023-12-02 13:04:11,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=693, Invalid=2499, Unknown=0, NotChecked=0, Total=3192 [2023-12-02 13:04:11,192 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 3257 mSDsluCounter, 8590 mSDsCounter, 0 mSdLazyCounter, 5299 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3257 SdHoareTripleChecker+Valid, 9411 SdHoareTripleChecker+Invalid, 5348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 5299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-02 13:04:11,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3257 Valid, 9411 Invalid, 5348 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 5299 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-02 13:04:11,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55478 states. [2023-12-02 13:04:11,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55478 to 37355. [2023-12-02 13:04:11,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37355 states, 37291 states have (on average 2.094017323214717) internal successors, (78088), 37354 states have internal predecessors, (78088), 0 states have call successors, (0), 0 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 13:04:11,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37355 states to 37355 states and 78088 transitions. [2023-12-02 13:04:11,833 INFO L78 Accepts]: Start accepts. Automaton has 37355 states and 78088 transitions. Word has length 96 [2023-12-02 13:04:11,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:04:11,833 INFO L495 AbstractCegarLoop]: Abstraction has 37355 states and 78088 transitions. [2023-12-02 13:04:11,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:04:11,833 INFO L276 IsEmpty]: Start isEmpty. Operand 37355 states and 78088 transitions. [2023-12-02 13:04:11,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:04:11,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:04:11,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:04:11,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-12-02 13:04:11,842 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:04:11,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:04:11,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1689542346, now seen corresponding path program 19 times [2023-12-02 13:04:11,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:04:11,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458760737] [2023-12-02 13:04:11,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:04:11,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:04:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:04:13,334 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 13:04:13,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:04:13,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458760737] [2023-12-02 13:04:13,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458760737] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:04:13,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:04:13,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 13:04:13,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881278674] [2023-12-02 13:04:13,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:04:13,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:04:13,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:04:13,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:04:13,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2023-12-02 13:04:13,336 INFO L87 Difference]: Start difference. First operand 37355 states and 78088 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:04:21,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:04:21,909 INFO L93 Difference]: Finished difference Result 55528 states and 114987 transitions. [2023-12-02 13:04:21,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-02 13:04:21,909 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:04:21,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:04:22,045 INFO L225 Difference]: With dead ends: 55528 [2023-12-02 13:04:22,045 INFO L226 Difference]: Without dead ends: 55528 [2023-12-02 13:04:22,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=789, Invalid=2751, Unknown=0, NotChecked=0, Total=3540 [2023-12-02 13:04:22,046 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 3293 mSDsluCounter, 11141 mSDsCounter, 0 mSdLazyCounter, 8183 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3293 SdHoareTripleChecker+Valid, 12014 SdHoareTripleChecker+Invalid, 8221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 8183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:04:22,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3293 Valid, 12014 Invalid, 8221 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 8183 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-02 13:04:22,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55528 states. [2023-12-02 13:04:22,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55528 to 37355. [2023-12-02 13:04:22,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37355 states, 37291 states have (on average 2.093963690971012) internal successors, (78086), 37354 states have internal predecessors, (78086), 0 states have call successors, (0), 0 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 13:04:22,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37355 states to 37355 states and 78086 transitions. [2023-12-02 13:04:22,628 INFO L78 Accepts]: Start accepts. Automaton has 37355 states and 78086 transitions. Word has length 96 [2023-12-02 13:04:22,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:04:22,628 INFO L495 AbstractCegarLoop]: Abstraction has 37355 states and 78086 transitions. [2023-12-02 13:04:22,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:04:22,628 INFO L276 IsEmpty]: Start isEmpty. Operand 37355 states and 78086 transitions. [2023-12-02 13:04:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:04:22,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:04:22,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:04:22,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-12-02 13:04:22,638 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:04:22,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:04:22,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1689774846, now seen corresponding path program 20 times [2023-12-02 13:04:22,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:04:22,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049397880] [2023-12-02 13:04:22,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:04:22,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:04:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:04:24,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:04:24,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:04:24,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049397880] [2023-12-02 13:04:24,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049397880] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:04:24,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:04:24,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2023-12-02 13:04:24,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946163456] [2023-12-02 13:04:24,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:04:24,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-02 13:04:24,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:04:24,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-02 13:04:24,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=851, Unknown=0, NotChecked=0, Total=930 [2023-12-02 13:04:24,426 INFO L87 Difference]: Start difference. First operand 37355 states and 78086 transitions. Second operand has 31 states, 30 states have (on average 3.2) internal successors, (96), 31 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:04:32,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:04:32,629 INFO L93 Difference]: Finished difference Result 80283 states and 167634 transitions. [2023-12-02 13:04:32,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 13:04:32,630 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.2) internal successors, (96), 31 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:04:32,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:04:32,768 INFO L225 Difference]: With dead ends: 80283 [2023-12-02 13:04:32,768 INFO L226 Difference]: Without dead ends: 80283 [2023-12-02 13:04:32,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=793, Invalid=2867, Unknown=0, NotChecked=0, Total=3660 [2023-12-02 13:04:32,769 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 3520 mSDsluCounter, 10644 mSDsCounter, 0 mSdLazyCounter, 6914 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3520 SdHoareTripleChecker+Valid, 11533 SdHoareTripleChecker+Invalid, 6962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 6914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-02 13:04:32,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3520 Valid, 11533 Invalid, 6962 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 6914 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-02 13:04:32,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80283 states. [2023-12-02 13:04:33,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80283 to 37553. [2023-12-02 13:04:33,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37553 states, 37489 states have (on average 2.093627464056123) internal successors, (78488), 37552 states have internal predecessors, (78488), 0 states have call successors, (0), 0 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 13:04:33,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37553 states to 37553 states and 78488 transitions. [2023-12-02 13:04:33,604 INFO L78 Accepts]: Start accepts. Automaton has 37553 states and 78488 transitions. Word has length 96 [2023-12-02 13:04:33,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:04:33,604 INFO L495 AbstractCegarLoop]: Abstraction has 37553 states and 78488 transitions. [2023-12-02 13:04:33,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.2) internal successors, (96), 31 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:04:33,604 INFO L276 IsEmpty]: Start isEmpty. Operand 37553 states and 78488 transitions. [2023-12-02 13:04:33,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:04:33,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:04:33,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:04:33,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-12-02 13:04:33,613 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:04:33,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:04:33,613 INFO L85 PathProgramCache]: Analyzing trace with hash -685521410, now seen corresponding path program 21 times [2023-12-02 13:04:33,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:04:33,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931898709] [2023-12-02 13:04:33,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:04:33,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:04:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:04:35,334 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 13:04:35,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:04:35,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931898709] [2023-12-02 13:04:35,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931898709] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:04:35,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:04:35,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 13:04:35,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231349368] [2023-12-02 13:04:35,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:04:35,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:04:35,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:04:35,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:04:35,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2023-12-02 13:04:35,335 INFO L87 Difference]: Start difference. First operand 37553 states and 78488 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:04:42,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:04:42,581 INFO L93 Difference]: Finished difference Result 55668 states and 115269 transitions. [2023-12-02 13:04:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 13:04:42,581 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:04:42,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:04:42,671 INFO L225 Difference]: With dead ends: 55668 [2023-12-02 13:04:42,671 INFO L226 Difference]: Without dead ends: 55668 [2023-12-02 13:04:42,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=697, Invalid=2495, Unknown=0, NotChecked=0, Total=3192 [2023-12-02 13:04:42,672 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 3113 mSDsluCounter, 9621 mSDsCounter, 0 mSdLazyCounter, 6457 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3113 SdHoareTripleChecker+Valid, 10474 SdHoareTripleChecker+Invalid, 6498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 6457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:04:42,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3113 Valid, 10474 Invalid, 6498 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 6457 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-02 13:04:42,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55668 states. [2023-12-02 13:04:43,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55668 to 37553. [2023-12-02 13:04:43,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37553 states, 37489 states have (on average 2.093627464056123) internal successors, (78488), 37552 states have internal predecessors, (78488), 0 states have call successors, (0), 0 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 13:04:43,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37553 states to 37553 states and 78488 transitions. [2023-12-02 13:04:43,325 INFO L78 Accepts]: Start accepts. Automaton has 37553 states and 78488 transitions. Word has length 96 [2023-12-02 13:04:43,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:04:43,325 INFO L495 AbstractCegarLoop]: Abstraction has 37553 states and 78488 transitions. [2023-12-02 13:04:43,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:04:43,326 INFO L276 IsEmpty]: Start isEmpty. Operand 37553 states and 78488 transitions. [2023-12-02 13:04:43,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:04:43,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:04:43,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:04:43,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-02 13:04:43,334 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:04:43,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:04:43,335 INFO L85 PathProgramCache]: Analyzing trace with hash -499624418, now seen corresponding path program 22 times [2023-12-02 13:04:43,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:04:43,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625713519] [2023-12-02 13:04:43,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:04:43,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:04:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:04:45,108 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 13:04:45,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:04:45,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625713519] [2023-12-02 13:04:45,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625713519] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:04:45,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:04:45,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2023-12-02 13:04:45,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088388078] [2023-12-02 13:04:45,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:04:45,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-02 13:04:45,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:04:45,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-02 13:04:45,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2023-12-02 13:04:45,110 INFO L87 Difference]: Start difference. First operand 37553 states and 78488 transitions. Second operand has 30 states, 29 states have (on average 3.310344827586207) internal successors, (96), 30 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:04:52,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:04:52,622 INFO L93 Difference]: Finished difference Result 85086 states and 177394 transitions. [2023-12-02 13:04:52,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 13:04:52,622 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.310344827586207) internal successors, (96), 30 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:04:52,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:04:52,773 INFO L225 Difference]: With dead ends: 85086 [2023-12-02 13:04:52,773 INFO L226 Difference]: Without dead ends: 85086 [2023-12-02 13:04:52,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=787, Invalid=2753, Unknown=0, NotChecked=0, Total=3540 [2023-12-02 13:04:52,774 INFO L413 NwaCegarLoop]: 975 mSDtfsCounter, 3810 mSDsluCounter, 11349 mSDsCounter, 0 mSdLazyCounter, 6471 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3810 SdHoareTripleChecker+Valid, 12324 SdHoareTripleChecker+Invalid, 6528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 6471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:04:52,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3810 Valid, 12324 Invalid, 6528 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 6471 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-02 13:04:52,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85086 states. [2023-12-02 13:04:53,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85086 to 37347. [2023-12-02 13:04:53,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37347 states, 37283 states have (on average 2.093983853230695) internal successors, (78070), 37346 states have internal predecessors, (78070), 0 states have call successors, (0), 0 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 13:04:53,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37347 states to 37347 states and 78070 transitions. [2023-12-02 13:04:53,601 INFO L78 Accepts]: Start accepts. Automaton has 37347 states and 78070 transitions. Word has length 96 [2023-12-02 13:04:53,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:04:53,602 INFO L495 AbstractCegarLoop]: Abstraction has 37347 states and 78070 transitions. [2023-12-02 13:04:53,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.310344827586207) internal successors, (96), 30 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:04:53,602 INFO L276 IsEmpty]: Start isEmpty. Operand 37347 states and 78070 transitions. [2023-12-02 13:04:53,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:04:53,610 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:04:53,611 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:04:53,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-12-02 13:04:53,611 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:04:53,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:04:53,611 INFO L85 PathProgramCache]: Analyzing trace with hash 470598447, now seen corresponding path program 37 times [2023-12-02 13:04:53,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:04:53,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357694835] [2023-12-02 13:04:53,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:04:53,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:04:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:04:55,377 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 13:04:55,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:04:55,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357694835] [2023-12-02 13:04:55,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357694835] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:04:55,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:04:55,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-12-02 13:04:55,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361480582] [2023-12-02 13:04:55,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:04:55,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-02 13:04:55,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:04:55,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-02 13:04:55,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2023-12-02 13:04:55,379 INFO L87 Difference]: Start difference. First operand 37347 states and 78070 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:05:04,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:05:04,318 INFO L93 Difference]: Finished difference Result 66610 states and 137666 transitions. [2023-12-02 13:05:04,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-02 13:05:04,319 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:05:04,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:05:04,435 INFO L225 Difference]: With dead ends: 66610 [2023-12-02 13:05:04,436 INFO L226 Difference]: Without dead ends: 66610 [2023-12-02 13:05:04,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=852, Invalid=2688, Unknown=0, NotChecked=0, Total=3540 [2023-12-02 13:05:04,436 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 4038 mSDsluCounter, 8143 mSDsCounter, 0 mSdLazyCounter, 7002 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4038 SdHoareTripleChecker+Valid, 8853 SdHoareTripleChecker+Invalid, 7272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 7002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:05:04,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4038 Valid, 8853 Invalid, 7272 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [270 Valid, 7002 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-02 13:05:04,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66610 states. [2023-12-02 13:05:05,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66610 to 38917. [2023-12-02 13:05:05,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38917 states, 38853 states have (on average 2.0957197642395697) internal successors, (81425), 38916 states have internal predecessors, (81425), 0 states have call successors, (0), 0 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 13:05:05,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38917 states to 38917 states and 81425 transitions. [2023-12-02 13:05:05,153 INFO L78 Accepts]: Start accepts. Automaton has 38917 states and 81425 transitions. Word has length 96 [2023-12-02 13:05:05,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:05:05,153 INFO L495 AbstractCegarLoop]: Abstraction has 38917 states and 81425 transitions. [2023-12-02 13:05:05,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:05:05,154 INFO L276 IsEmpty]: Start isEmpty. Operand 38917 states and 81425 transitions. [2023-12-02 13:05:05,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:05:05,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:05:05,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:05:05,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-12-02 13:05:05,163 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:05:05,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:05:05,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1104769182, now seen corresponding path program 23 times [2023-12-02 13:05:05,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:05:05,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964362933] [2023-12-02 13:05:05,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:05:05,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:05:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:05:06,395 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 13:05:06,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:05:06,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964362933] [2023-12-02 13:05:06,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964362933] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:05:06,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:05:06,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 13:05:06,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539402035] [2023-12-02 13:05:06,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:05:06,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:05:06,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:05:06,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:05:06,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2023-12-02 13:05:06,396 INFO L87 Difference]: Start difference. First operand 38917 states and 81425 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:05:15,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:05:15,040 INFO L93 Difference]: Finished difference Result 58061 states and 120042 transitions. [2023-12-02 13:05:15,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-02 13:05:15,040 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-02 13:05:15,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:05:15,140 INFO L225 Difference]: With dead ends: 58061 [2023-12-02 13:05:15,140 INFO L226 Difference]: Without dead ends: 58061 [2023-12-02 13:05:15,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1007, Invalid=3283, Unknown=0, NotChecked=0, Total=4290 [2023-12-02 13:05:15,141 INFO L413 NwaCegarLoop]: 885 mSDtfsCounter, 3321 mSDsluCounter, 10594 mSDsCounter, 0 mSdLazyCounter, 7966 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3321 SdHoareTripleChecker+Valid, 11479 SdHoareTripleChecker+Invalid, 8005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 7966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:05:15,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3321 Valid, 11479 Invalid, 8005 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 7966 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-02 13:05:15,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58061 states. [2023-12-02 13:05:15,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58061 to 38915. [2023-12-02 13:05:15,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38915 states, 38851 states have (on average 2.0957246917711254) internal successors, (81421), 38914 states have internal predecessors, (81421), 0 states have call successors, (0), 0 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 13:05:15,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38915 states to 38915 states and 81421 transitions. [2023-12-02 13:05:15,819 INFO L78 Accepts]: Start accepts. Automaton has 38915 states and 81421 transitions. Word has length 96 [2023-12-02 13:05:15,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:05:15,820 INFO L495 AbstractCegarLoop]: Abstraction has 38915 states and 81421 transitions. [2023-12-02 13:05:15,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:05:15,820 INFO L276 IsEmpty]: Start isEmpty. Operand 38915 states and 81421 transitions. [2023-12-02 13:05:15,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 13:05:15,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:05:15,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:05:15,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-12-02 13:05:15,829 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-12-02 13:05:15,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:05:15,830 INFO L85 PathProgramCache]: Analyzing trace with hash 907254852, now seen corresponding path program 24 times [2023-12-02 13:05:15,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:05:15,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168390296] [2023-12-02 13:05:15,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:05:15,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:05:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:05:17,265 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 13:05:17,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:05:17,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168390296] [2023-12-02 13:05:17,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168390296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:05:17,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:05:17,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-12-02 13:05:17,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581517777] [2023-12-02 13:05:17,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:05:17,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:05:17,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:05:17,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:05:17,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2023-12-02 13:05:17,266 INFO L87 Difference]: Start difference. First operand 38915 states and 81421 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 28 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)