./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-bitmask.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/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_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-bitmask.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/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_63656c9f-7928-4dab-b0f6-8269adc12092/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 3787427d85789c6543b359d801a5f9325d8405a4b765c9b89d348aba34fa2c55 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:12:16,584 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:12:16,664 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-12-02 16:12:16,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:12:16,670 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:12:16,696 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:12:16,696 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:12:16,697 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:12:16,698 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:12:16,698 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:12:16,699 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:12:16,699 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:12:16,700 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:12:16,700 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:12:16,701 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:12:16,701 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:12:16,702 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:12:16,702 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:12:16,703 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:12:16,703 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:12:16,704 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:12:16,709 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:12:16,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:12:16,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:12:16,710 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:12:16,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:12:16,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:12:16,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:12:16,712 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:12:16,712 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:12:16,712 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:12:16,720 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 16:12:16,721 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 16:12:16,721 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:12:16,721 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:12:16,722 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:12:16,722 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:12:16,722 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:12:16,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:12:16,723 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:12:16,723 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:12:16,723 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:12:16,724 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:12:16,724 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:12:16,724 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:12:16,724 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:12:16,724 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:12:16,725 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:12:16,725 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_63656c9f-7928-4dab-b0f6-8269adc12092/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3787427d85789c6543b359d801a5f9325d8405a4b765c9b89d348aba34fa2c55 [2023-12-02 16:12:16,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:12:16,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:12:16,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:12:16,960 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:12:16,961 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:12:16,962 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-bitmask.i [2023-12-02 16:12:20,012 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:12:20,287 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:12:20,288 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/sv-benchmarks/c/pthread-race-challenges/per-thread-index-bitmask.i [2023-12-02 16:12:20,309 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/data/de03ea9af/9adef1366fbc4883b9a147f34dbbca2c/FLAG03ce71d7a [2023-12-02 16:12:20,325 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/data/de03ea9af/9adef1366fbc4883b9a147f34dbbca2c [2023-12-02 16:12:20,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:12:20,329 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:12:20,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:12:20,331 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:12:20,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:12:20,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:12:20" (1/1) ... [2023-12-02 16:12:20,339 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f7c015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:12:20, skipping insertion in model container [2023-12-02 16:12:20,339 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:12:20" (1/1) ... [2023-12-02 16:12:20,414 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:12:20,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:12:20,900 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:12:20,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:12:21,018 WARN L675 CHandler]: The function ffs is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:12:21,024 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:12:21,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:12:21 WrapperNode [2023-12-02 16:12:21,025 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:12:21,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:12:21,026 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:12:21,026 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:12:21,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:12:21" (1/1) ... [2023-12-02 16:12:21,058 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:12:21" (1/1) ... [2023-12-02 16:12:21,092 INFO L138 Inliner]: procedures = 281, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 132 [2023-12-02 16:12:21,092 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:12:21,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:12:21,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:12:21,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:12:21,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:12:21" (1/1) ... [2023-12-02 16:12:21,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:12:21" (1/1) ... [2023-12-02 16:12:21,109 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:12:21" (1/1) ... [2023-12-02 16:12:21,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:12:21" (1/1) ... [2023-12-02 16:12:21,123 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:12:21" (1/1) ... [2023-12-02 16:12:21,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:12:21" (1/1) ... [2023-12-02 16:12:21,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:12:21" (1/1) ... [2023-12-02 16:12:21,134 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:12:21" (1/1) ... [2023-12-02 16:12:21,139 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:12:21,141 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:12:21,141 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:12:21,141 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:12:21,142 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:12:21" (1/1) ... [2023-12-02 16:12:21,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:12:21,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:12:21,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:12:21,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:12:21,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 16:12:21,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 16:12:21,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 16:12:21,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 16:12:21,218 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 16:12:21,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 16:12:21,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 16:12:21,219 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 16:12:21,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 16:12:21,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:12:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2023-12-02 16:12:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:12:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-12-02 16:12:21,220 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-12-02 16:12:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:12:21,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:12:21,223 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 16:12:21,398 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:12:21,400 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:12:21,778 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:12:21,807 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:12:21,808 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 16:12:21,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:12:21 BoogieIcfgContainer [2023-12-02 16:12:21,809 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:12:21,813 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:12:21,813 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:12:21,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:12:21,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:12:20" (1/3) ... [2023-12-02 16:12:21,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f14378f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:12:21, skipping insertion in model container [2023-12-02 16:12:21,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:12:21" (2/3) ... [2023-12-02 16:12:21,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f14378f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:12:21, skipping insertion in model container [2023-12-02 16:12:21,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:12:21" (3/3) ... [2023-12-02 16:12:21,821 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-index-bitmask.i [2023-12-02 16:12:21,832 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 16:12:21,845 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:12:21,846 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-12-02 16:12:21,846 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 16:12:21,938 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-12-02 16:12:21,982 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 190 places, 198 transitions, 403 flow [2023-12-02 16:12:22,193 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4450 states, 4386 states have (on average 2.0870953032375743) internal successors, (9154), 4449 states have internal predecessors, (9154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:22,215 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:12:22,223 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;@7678ada7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:12:22,223 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-12-02 16:12:22,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 4450 states, 4386 states have (on average 2.0870953032375743) internal successors, (9154), 4449 states have internal predecessors, (9154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:22,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 16:12:22,247 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:22,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:12:22,249 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:22,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:22,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1937937021, now seen corresponding path program 1 times [2023-12-02 16:12:22,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:22,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906184150] [2023-12-02 16:12:22,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:22,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:22,517 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 16:12:22,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:22,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906184150] [2023-12-02 16:12:22,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906184150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:22,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:12:22,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:12:22,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844568995] [2023-12-02 16:12:22,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:22,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:12:22,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:22,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:12:22,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:12:22,578 INFO L87 Difference]: Start difference. First operand has 4450 states, 4386 states have (on average 2.0870953032375743) internal successors, (9154), 4449 states have internal predecessors, (9154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:22,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:22,731 INFO L93 Difference]: Finished difference Result 4449 states and 9055 transitions. [2023-12-02 16:12:22,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:12:22,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2023-12-02 16:12:22,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:22,794 INFO L225 Difference]: With dead ends: 4449 [2023-12-02 16:12:22,795 INFO L226 Difference]: Without dead ends: 4382 [2023-12-02 16:12:22,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:12:22,801 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 2 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:22,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 360 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:12:22,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4382 states. [2023-12-02 16:12:23,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4382 to 4382. [2023-12-02 16:12:23,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4382 states, 4321 states have (on average 2.065262670678084) internal successors, (8924), 4381 states have internal predecessors, (8924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:23,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4382 states to 4382 states and 8924 transitions. [2023-12-02 16:12:23,068 INFO L78 Accepts]: Start accepts. Automaton has 4382 states and 8924 transitions. Word has length 38 [2023-12-02 16:12:23,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:23,069 INFO L495 AbstractCegarLoop]: Abstraction has 4382 states and 8924 transitions. [2023-12-02 16:12:23,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:23,070 INFO L276 IsEmpty]: Start isEmpty. Operand 4382 states and 8924 transitions. [2023-12-02 16:12:23,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 16:12:23,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:23,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:12:23,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:12:23,072 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:23,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:23,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1004342350, now seen corresponding path program 1 times [2023-12-02 16:12:23,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:23,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595142691] [2023-12-02 16:12:23,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:23,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:23,154 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 16:12:23,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:23,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595142691] [2023-12-02 16:12:23,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595142691] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:23,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:12:23,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:12:23,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738194751] [2023-12-02 16:12:23,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:23,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:12:23,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:23,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:12:23,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:12:23,159 INFO L87 Difference]: Start difference. First operand 4382 states and 8924 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:23,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:23,272 INFO L93 Difference]: Finished difference Result 4759 states and 9720 transitions. [2023-12-02 16:12:23,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:12:23,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-12-02 16:12:23,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:23,306 INFO L225 Difference]: With dead ends: 4759 [2023-12-02 16:12:23,307 INFO L226 Difference]: Without dead ends: 4759 [2023-12-02 16:12:23,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:12:23,308 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 135 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:23,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 440 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:12:23,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4759 states. [2023-12-02 16:12:23,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4759 to 4274. [2023-12-02 16:12:23,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4274 states, 4227 states have (on average 2.0577241542465106) internal successors, (8698), 4273 states have internal predecessors, (8698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:23,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4274 states to 4274 states and 8698 transitions. [2023-12-02 16:12:23,532 INFO L78 Accepts]: Start accepts. Automaton has 4274 states and 8698 transitions. Word has length 46 [2023-12-02 16:12:23,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:23,533 INFO L495 AbstractCegarLoop]: Abstraction has 4274 states and 8698 transitions. [2023-12-02 16:12:23,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:23,533 INFO L276 IsEmpty]: Start isEmpty. Operand 4274 states and 8698 transitions. [2023-12-02 16:12:23,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 16:12:23,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:23,536 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] [2023-12-02 16:12:23,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 16:12:23,536 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:23,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:23,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1244629649, now seen corresponding path program 1 times [2023-12-02 16:12:23,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:23,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189272014] [2023-12-02 16:12:23,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:23,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:23,714 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 16:12:23,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:23,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189272014] [2023-12-02 16:12:23,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189272014] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:23,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:12:23,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:12:23,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027432332] [2023-12-02 16:12:23,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:23,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:12:23,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:23,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:12:23,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:12:23,718 INFO L87 Difference]: Start difference. First operand 4274 states and 8698 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:23,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:23,829 INFO L93 Difference]: Finished difference Result 4288 states and 8711 transitions. [2023-12-02 16:12:23,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:12:23,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2023-12-02 16:12:23,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:23,861 INFO L225 Difference]: With dead ends: 4288 [2023-12-02 16:12:23,862 INFO L226 Difference]: Without dead ends: 4288 [2023-12-02 16:12:23,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:12:23,863 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 114 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:23,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 536 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:12:23,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4288 states. [2023-12-02 16:12:23,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4288 to 4275. [2023-12-02 16:12:23,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4275 states, 4228 states have (on average 2.057473982970672) internal successors, (8699), 4274 states have internal predecessors, (8699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:24,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 8699 transitions. [2023-12-02 16:12:24,007 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 8699 transitions. Word has length 51 [2023-12-02 16:12:24,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:24,008 INFO L495 AbstractCegarLoop]: Abstraction has 4275 states and 8699 transitions. [2023-12-02 16:12:24,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:24,008 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 8699 transitions. [2023-12-02 16:12:24,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 16:12:24,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:24,010 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] [2023-12-02 16:12:24,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 16:12:24,011 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:24,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:24,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1556745056, now seen corresponding path program 1 times [2023-12-02 16:12:24,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:24,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424106494] [2023-12-02 16:12:24,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:24,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:24,568 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 16:12:24,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:24,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424106494] [2023-12-02 16:12:24,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424106494] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:24,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:12:24,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:12:24,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087867754] [2023-12-02 16:12:24,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:24,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:12:24,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:24,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:12:24,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:12:24,572 INFO L87 Difference]: Start difference. First operand 4275 states and 8699 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:24,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:24,914 INFO L93 Difference]: Finished difference Result 5377 states and 10875 transitions. [2023-12-02 16:12:24,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:12:24,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2023-12-02 16:12:24,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:24,944 INFO L225 Difference]: With dead ends: 5377 [2023-12-02 16:12:24,945 INFO L226 Difference]: Without dead ends: 5377 [2023-12-02 16:12:24,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:12:24,946 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 314 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:24,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 752 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 16:12:24,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5377 states. [2023-12-02 16:12:25,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5377 to 4672. [2023-12-02 16:12:25,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4672 states, 4632 states have (on average 2.0552677029360966) internal successors, (9520), 4671 states have internal predecessors, (9520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:25,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4672 states to 4672 states and 9520 transitions. [2023-12-02 16:12:25,102 INFO L78 Accepts]: Start accepts. Automaton has 4672 states and 9520 transitions. Word has length 52 [2023-12-02 16:12:25,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:25,103 INFO L495 AbstractCegarLoop]: Abstraction has 4672 states and 9520 transitions. [2023-12-02 16:12:25,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:25,104 INFO L276 IsEmpty]: Start isEmpty. Operand 4672 states and 9520 transitions. [2023-12-02 16:12:25,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 16:12:25,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:25,106 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] [2023-12-02 16:12:25,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 16:12:25,107 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:25,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:25,108 INFO L85 PathProgramCache]: Analyzing trace with hash 2025628928, now seen corresponding path program 1 times [2023-12-02 16:12:25,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:25,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475136689] [2023-12-02 16:12:25,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:25,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:25,157 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 16:12:25,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:25,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475136689] [2023-12-02 16:12:25,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475136689] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:25,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:12:25,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:12:25,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682053851] [2023-12-02 16:12:25,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:25,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:12:25,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:25,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:12:25,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:12:25,161 INFO L87 Difference]: Start difference. First operand 4672 states and 9520 transitions. Second operand has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:25,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:25,204 INFO L93 Difference]: Finished difference Result 4549 states and 9261 transitions. [2023-12-02 16:12:25,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:12:25,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2023-12-02 16:12:25,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:25,234 INFO L225 Difference]: With dead ends: 4549 [2023-12-02 16:12:25,234 INFO L226 Difference]: Without dead ends: 4437 [2023-12-02 16:12:25,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:12:25,236 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 145 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:25,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 380 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:12:25,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4437 states. [2023-12-02 16:12:25,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4437 to 4437. [2023-12-02 16:12:25,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4437 states, 4407 states have (on average 2.0540049920580894) internal successors, (9052), 4436 states have internal predecessors, (9052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:25,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4437 states to 4437 states and 9052 transitions. [2023-12-02 16:12:25,411 INFO L78 Accepts]: Start accepts. Automaton has 4437 states and 9052 transitions. Word has length 56 [2023-12-02 16:12:25,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:25,412 INFO L495 AbstractCegarLoop]: Abstraction has 4437 states and 9052 transitions. [2023-12-02 16:12:25,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:25,412 INFO L276 IsEmpty]: Start isEmpty. Operand 4437 states and 9052 transitions. [2023-12-02 16:12:25,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 16:12:25,413 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:25,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:12:25,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 16:12:25,414 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:25,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:25,415 INFO L85 PathProgramCache]: Analyzing trace with hash -90704727, now seen corresponding path program 1 times [2023-12-02 16:12:25,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:25,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174962429] [2023-12-02 16:12:25,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:25,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:25,515 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 16:12:25,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:25,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174962429] [2023-12-02 16:12:25,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174962429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:25,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:12:25,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:12:25,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835125017] [2023-12-02 16:12:25,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:25,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:12:25,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:25,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:12:25,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:12:25,518 INFO L87 Difference]: Start difference. First operand 4437 states and 9052 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:25,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:25,601 INFO L93 Difference]: Finished difference Result 4446 states and 9062 transitions. [2023-12-02 16:12:25,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:12:25,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-12-02 16:12:25,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:25,616 INFO L225 Difference]: With dead ends: 4446 [2023-12-02 16:12:25,616 INFO L226 Difference]: Without dead ends: 4446 [2023-12-02 16:12:25,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:12:25,617 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 31 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:25,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 352 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:12:25,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states. [2023-12-02 16:12:25,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 4438. [2023-12-02 16:12:25,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4438 states, 4408 states have (on average 2.053765880217786) internal successors, (9053), 4437 states have internal predecessors, (9053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:25,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4438 states to 4438 states and 9053 transitions. [2023-12-02 16:12:25,752 INFO L78 Accepts]: Start accepts. Automaton has 4438 states and 9053 transitions. Word has length 60 [2023-12-02 16:12:25,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:25,753 INFO L495 AbstractCegarLoop]: Abstraction has 4438 states and 9053 transitions. [2023-12-02 16:12:25,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:25,753 INFO L276 IsEmpty]: Start isEmpty. Operand 4438 states and 9053 transitions. [2023-12-02 16:12:25,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 16:12:25,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:25,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:12:25,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 16:12:25,755 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:25,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:25,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1702736661, now seen corresponding path program 1 times [2023-12-02 16:12:25,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:25,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284990843] [2023-12-02 16:12:25,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:25,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:25,865 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 16:12:25,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:25,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284990843] [2023-12-02 16:12:25,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284990843] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:25,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:12:25,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:12:25,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320221091] [2023-12-02 16:12:25,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:25,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:12:25,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:25,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:12:25,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:12:25,868 INFO L87 Difference]: Start difference. First operand 4438 states and 9053 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:25,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:25,967 INFO L93 Difference]: Finished difference Result 4445 states and 9060 transitions. [2023-12-02 16:12:25,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:12:25,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-12-02 16:12:25,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:25,984 INFO L225 Difference]: With dead ends: 4445 [2023-12-02 16:12:25,984 INFO L226 Difference]: Without dead ends: 4445 [2023-12-02 16:12:25,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:12:25,985 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 20 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:25,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 353 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:12:26,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4445 states. [2023-12-02 16:12:26,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4445 to 4436. [2023-12-02 16:12:26,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4436 states, 4406 states have (on average 2.0540172492056286) internal successors, (9050), 4435 states have internal predecessors, (9050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:26,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 9050 transitions. [2023-12-02 16:12:26,120 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 9050 transitions. Word has length 60 [2023-12-02 16:12:26,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:26,120 INFO L495 AbstractCegarLoop]: Abstraction has 4436 states and 9050 transitions. [2023-12-02 16:12:26,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:26,121 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 9050 transitions. [2023-12-02 16:12:26,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 16:12:26,122 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:26,122 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 16:12:26,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 16:12:26,123 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:26,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:26,123 INFO L85 PathProgramCache]: Analyzing trace with hash -188589783, now seen corresponding path program 1 times [2023-12-02 16:12:26,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:26,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222616291] [2023-12-02 16:12:26,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:26,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:26,241 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 16:12:26,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:26,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222616291] [2023-12-02 16:12:26,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222616291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:26,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:12:26,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:12:26,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878768741] [2023-12-02 16:12:26,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:26,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:12:26,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:26,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:12:26,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:12:26,244 INFO L87 Difference]: Start difference. First operand 4436 states and 9050 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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 16:12:26,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:26,315 INFO L93 Difference]: Finished difference Result 4444 states and 9058 transitions. [2023-12-02 16:12:26,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:12:26,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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 16:12:26,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:26,328 INFO L225 Difference]: With dead ends: 4444 [2023-12-02 16:12:26,328 INFO L226 Difference]: Without dead ends: 4444 [2023-12-02 16:12:26,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:12:26,329 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 23 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:26,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 352 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:12:26,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4444 states. [2023-12-02 16:12:26,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4444 to 4438. [2023-12-02 16:12:26,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4438 states, 4408 states have (on average 2.0535390199637025) internal successors, (9052), 4437 states have internal predecessors, (9052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:26,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4438 states to 4438 states and 9052 transitions. [2023-12-02 16:12:26,425 INFO L78 Accepts]: Start accepts. Automaton has 4438 states and 9052 transitions. Word has length 61 [2023-12-02 16:12:26,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:26,426 INFO L495 AbstractCegarLoop]: Abstraction has 4438 states and 9052 transitions. [2023-12-02 16:12:26,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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 16:12:26,426 INFO L276 IsEmpty]: Start isEmpty. Operand 4438 states and 9052 transitions. [2023-12-02 16:12:26,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 16:12:26,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:26,427 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 16:12:26,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 16:12:26,428 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:26,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:26,428 INFO L85 PathProgramCache]: Analyzing trace with hash -426481603, now seen corresponding path program 1 times [2023-12-02 16:12:26,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:26,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011764653] [2023-12-02 16:12:26,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:26,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:26,502 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 16:12:26,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:26,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011764653] [2023-12-02 16:12:26,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011764653] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:26,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:12:26,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:12:26,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015797273] [2023-12-02 16:12:26,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:26,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:12:26,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:26,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:12:26,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:12:26,505 INFO L87 Difference]: Start difference. First operand 4438 states and 9052 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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 16:12:26,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:26,595 INFO L93 Difference]: Finished difference Result 4443 states and 9056 transitions. [2023-12-02 16:12:26,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:12:26,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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 16:12:26,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:26,611 INFO L225 Difference]: With dead ends: 4443 [2023-12-02 16:12:26,611 INFO L226 Difference]: Without dead ends: 4443 [2023-12-02 16:12:26,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:12:26,613 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 16 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:26,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 464 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:12:26,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4443 states. [2023-12-02 16:12:26,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4443 to 4435. [2023-12-02 16:12:26,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4435 states, 4405 states have (on average 2.0540295119182748) internal successors, (9048), 4434 states have internal predecessors, (9048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:26,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4435 states to 4435 states and 9048 transitions. [2023-12-02 16:12:26,755 INFO L78 Accepts]: Start accepts. Automaton has 4435 states and 9048 transitions. Word has length 61 [2023-12-02 16:12:26,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:26,755 INFO L495 AbstractCegarLoop]: Abstraction has 4435 states and 9048 transitions. [2023-12-02 16:12:26,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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 16:12:26,756 INFO L276 IsEmpty]: Start isEmpty. Operand 4435 states and 9048 transitions. [2023-12-02 16:12:26,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 16:12:26,757 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:26,757 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 16:12:26,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 16:12:26,758 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:26,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:26,758 INFO L85 PathProgramCache]: Analyzing trace with hash 118216292, now seen corresponding path program 1 times [2023-12-02 16:12:26,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:26,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075313845] [2023-12-02 16:12:26,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:26,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:26,819 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 16:12:26,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:26,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075313845] [2023-12-02 16:12:26,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075313845] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:26,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:12:26,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:12:26,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096730047] [2023-12-02 16:12:26,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:26,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:12:26,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:26,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:12:26,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:12:26,823 INFO L87 Difference]: Start difference. First operand 4435 states and 9048 transitions. Second operand has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 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 16:12:26,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:26,900 INFO L93 Difference]: Finished difference Result 4516 states and 9219 transitions. [2023-12-02 16:12:26,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:12:26,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 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 16:12:26,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:26,917 INFO L225 Difference]: With dead ends: 4516 [2023-12-02 16:12:26,918 INFO L226 Difference]: Without dead ends: 4516 [2023-12-02 16:12:26,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:12:26,919 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 49 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:26,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 387 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:12:26,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4516 states. [2023-12-02 16:12:27,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4516 to 4438. [2023-12-02 16:12:27,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4438 states, 4411 states have (on average 2.0532759011562005) internal successors, (9057), 4437 states have internal predecessors, (9057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:27,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4438 states to 4438 states and 9057 transitions. [2023-12-02 16:12:27,038 INFO L78 Accepts]: Start accepts. Automaton has 4438 states and 9057 transitions. Word has length 65 [2023-12-02 16:12:27,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:27,039 INFO L495 AbstractCegarLoop]: Abstraction has 4438 states and 9057 transitions. [2023-12-02 16:12:27,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 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 16:12:27,039 INFO L276 IsEmpty]: Start isEmpty. Operand 4438 states and 9057 transitions. [2023-12-02 16:12:27,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 16:12:27,040 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:27,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:12:27,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 16:12:27,041 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:27,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:27,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1479071995, now seen corresponding path program 1 times [2023-12-02 16:12:27,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:27,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361770062] [2023-12-02 16:12:27,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:27,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:27,602 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 16:12:27,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:27,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361770062] [2023-12-02 16:12:27,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361770062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:27,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:12:27,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:12:27,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014531766] [2023-12-02 16:12:27,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:27,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:12:27,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:27,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:12:27,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:12:27,605 INFO L87 Difference]: Start difference. First operand 4438 states and 9057 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:28,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:28,083 INFO L93 Difference]: Finished difference Result 4631 states and 9420 transitions. [2023-12-02 16:12:28,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:12:28,083 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-02 16:12:28,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:28,096 INFO L225 Difference]: With dead ends: 4631 [2023-12-02 16:12:28,096 INFO L226 Difference]: Without dead ends: 4631 [2023-12-02 16:12:28,097 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 16:12:28,097 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 300 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:28,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 971 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 16:12:28,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4631 states. [2023-12-02 16:12:28,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4631 to 4537. [2023-12-02 16:12:28,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4537 states, 4510 states have (on average 2.0483370288248337) internal successors, (9238), 4536 states have internal predecessors, (9238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:28,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4537 states to 4537 states and 9238 transitions. [2023-12-02 16:12:28,187 INFO L78 Accepts]: Start accepts. Automaton has 4537 states and 9238 transitions. Word has length 93 [2023-12-02 16:12:28,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:28,187 INFO L495 AbstractCegarLoop]: Abstraction has 4537 states and 9238 transitions. [2023-12-02 16:12:28,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:28,187 INFO L276 IsEmpty]: Start isEmpty. Operand 4537 states and 9238 transitions. [2023-12-02 16:12:28,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 16:12:28,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:28,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:12:28,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 16:12:28,190 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:28,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:28,191 INFO L85 PathProgramCache]: Analyzing trace with hash -2109754094, now seen corresponding path program 1 times [2023-12-02 16:12:28,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:28,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068154607] [2023-12-02 16:12:28,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:28,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:28,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:12:28,788 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:28,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068154607] [2023-12-02 16:12:28,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068154607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:28,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:12:28,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:12:28,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648890662] [2023-12-02 16:12:28,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:28,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:12:28,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:28,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:12:28,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:12:28,790 INFO L87 Difference]: Start difference. First operand 4537 states and 9238 transitions. Second operand has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:29,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:29,157 INFO L93 Difference]: Finished difference Result 4710 states and 9556 transitions. [2023-12-02 16:12:29,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:12:29,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-02 16:12:29,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:29,172 INFO L225 Difference]: With dead ends: 4710 [2023-12-02 16:12:29,172 INFO L226 Difference]: Without dead ends: 4555 [2023-12-02 16:12:29,173 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 16:12:29,173 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 174 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:29,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1137 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 16:12:29,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4555 states. [2023-12-02 16:12:29,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4555 to 4524. [2023-12-02 16:12:29,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4498 states have (on average 2.050466874166296) internal successors, (9223), 4523 states have internal predecessors, (9223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:29,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 9223 transitions. [2023-12-02 16:12:29,303 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 9223 transitions. Word has length 102 [2023-12-02 16:12:29,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:29,303 INFO L495 AbstractCegarLoop]: Abstraction has 4524 states and 9223 transitions. [2023-12-02 16:12:29,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:29,304 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 9223 transitions. [2023-12-02 16:12:29,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 16:12:29,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:29,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:12:29,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 16:12:29,308 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:29,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:29,308 INFO L85 PathProgramCache]: Analyzing trace with hash -242024190, now seen corresponding path program 1 times [2023-12-02 16:12:29,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:29,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410329301] [2023-12-02 16:12:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:29,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:30,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:12:30,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:30,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410329301] [2023-12-02 16:12:30,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410329301] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:30,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:12:30,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 16:12:30,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485471019] [2023-12-02 16:12:30,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:30,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 16:12:30,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:30,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 16:12:30,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-02 16:12:30,106 INFO L87 Difference]: Start difference. First operand 4524 states and 9223 transitions. Second operand has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:30,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:30,937 INFO L93 Difference]: Finished difference Result 4510 states and 9192 transitions. [2023-12-02 16:12:30,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 16:12:30,937 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-02 16:12:30,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:30,948 INFO L225 Difference]: With dead ends: 4510 [2023-12-02 16:12:30,948 INFO L226 Difference]: Without dead ends: 4510 [2023-12-02 16:12:30,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-02 16:12:30,949 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 600 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:30,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 1499 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 16:12:30,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4510 states. [2023-12-02 16:12:31,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4510 to 4402. [2023-12-02 16:12:31,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4402 states, 4380 states have (on average 2.0518264840182647) internal successors, (8987), 4401 states have internal predecessors, (8987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:31,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4402 states to 4402 states and 8987 transitions. [2023-12-02 16:12:31,027 INFO L78 Accepts]: Start accepts. Automaton has 4402 states and 8987 transitions. Word has length 105 [2023-12-02 16:12:31,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:31,028 INFO L495 AbstractCegarLoop]: Abstraction has 4402 states and 8987 transitions. [2023-12-02 16:12:31,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:31,028 INFO L276 IsEmpty]: Start isEmpty. Operand 4402 states and 8987 transitions. [2023-12-02 16:12:31,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 16:12:31,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:31,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:12:31,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 16:12:31,032 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:31,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:31,033 INFO L85 PathProgramCache]: Analyzing trace with hash -653413498, now seen corresponding path program 1 times [2023-12-02 16:12:31,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:31,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768741939] [2023-12-02 16:12:31,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:31,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:31,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:12:31,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:31,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768741939] [2023-12-02 16:12:31,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768741939] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:31,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:12:31,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 16:12:31,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368626987] [2023-12-02 16:12:31,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:31,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 16:12:31,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:31,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 16:12:31,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-02 16:12:31,523 INFO L87 Difference]: Start difference. First operand 4402 states and 8987 transitions. Second operand has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:31,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:31,850 INFO L93 Difference]: Finished difference Result 4297 states and 8768 transitions. [2023-12-02 16:12:31,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 16:12:31,852 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-02 16:12:31,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:31,864 INFO L225 Difference]: With dead ends: 4297 [2023-12-02 16:12:31,865 INFO L226 Difference]: Without dead ends: 4233 [2023-12-02 16:12:31,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-02 16:12:31,866 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 568 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:31,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 695 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 16:12:31,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4233 states. [2023-12-02 16:12:31,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4233 to 3877. [2023-12-02 16:12:31,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3877 states, 3861 states have (on average 2.051282051282051) internal successors, (7920), 3876 states have internal predecessors, (7920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:31,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3877 states to 3877 states and 7920 transitions. [2023-12-02 16:12:31,959 INFO L78 Accepts]: Start accepts. Automaton has 3877 states and 7920 transitions. Word has length 105 [2023-12-02 16:12:31,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:31,960 INFO L495 AbstractCegarLoop]: Abstraction has 3877 states and 7920 transitions. [2023-12-02 16:12:31,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:31,960 INFO L276 IsEmpty]: Start isEmpty. Operand 3877 states and 7920 transitions. [2023-12-02 16:12:31,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-02 16:12:31,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:31,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:12:31,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 16:12:31,964 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting threadErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:31,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:31,964 INFO L85 PathProgramCache]: Analyzing trace with hash 256638793, now seen corresponding path program 1 times [2023-12-02 16:12:31,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:31,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266575967] [2023-12-02 16:12:31,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:31,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:32,026 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 16:12:32,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:32,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266575967] [2023-12-02 16:12:32,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266575967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:32,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:12:32,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:12:32,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938531929] [2023-12-02 16:12:32,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:32,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:12:32,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:32,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:12:32,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:12:32,028 INFO L87 Difference]: Start difference. First operand 3877 states and 7920 transitions. Second operand has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:32,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:32,081 INFO L93 Difference]: Finished difference Result 3974 states and 8122 transitions. [2023-12-02 16:12:32,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:12:32,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-02 16:12:32,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:32,089 INFO L225 Difference]: With dead ends: 3974 [2023-12-02 16:12:32,090 INFO L226 Difference]: Without dead ends: 3016 [2023-12-02 16:12:32,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:12:32,091 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 90 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:32,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 412 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:12:32,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2023-12-02 16:12:32,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 2899. [2023-12-02 16:12:32,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2899 states, 2889 states have (on average 2.022152994115611) internal successors, (5842), 2898 states have internal predecessors, (5842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:32,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2899 states to 2899 states and 5842 transitions. [2023-12-02 16:12:32,156 INFO L78 Accepts]: Start accepts. Automaton has 2899 states and 5842 transitions. Word has length 107 [2023-12-02 16:12:32,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:32,157 INFO L495 AbstractCegarLoop]: Abstraction has 2899 states and 5842 transitions. [2023-12-02 16:12:32,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:32,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2899 states and 5842 transitions. [2023-12-02 16:12:32,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:12:32,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:32,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:12:32,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 16:12:32,161 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:32,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:32,162 INFO L85 PathProgramCache]: Analyzing trace with hash 976658147, now seen corresponding path program 1 times [2023-12-02 16:12:32,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:32,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251721200] [2023-12-02 16:12:32,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:32,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:33,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:12:33,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:33,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251721200] [2023-12-02 16:12:33,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251721200] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:12:33,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192616493] [2023-12-02 16:12:33,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:33,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:12:33,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:12:33,645 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:12:33,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:12:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:33,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-02 16:12:33,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:12:33,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 16:12:33,940 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-12-02 16:12:33,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-12-02 16:12:34,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:34,079 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-12-02 16:12:34,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2023-12-02 16:12:34,591 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:12:34,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-12-02 16:12:34,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:34,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2023-12-02 16:12:34,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-02 16:12:34,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-12-02 16:12:34,902 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:12:34,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-12-02 16:12:35,005 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:12:35,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-12-02 16:12:35,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:12:35,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:35,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:12:35,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:35,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:12:35,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:35,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:12:35,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:35,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:12:35,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:12:35,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:12:35,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:12:35,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192616493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:35,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:12:35,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [15] total 25 [2023-12-02 16:12:35,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348889758] [2023-12-02 16:12:35,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:35,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 16:12:35,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:35,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 16:12:35,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2023-12-02 16:12:35,555 INFO L87 Difference]: Start difference. First operand 2899 states and 5842 transitions. Second operand has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:37,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:37,107 INFO L93 Difference]: Finished difference Result 2919 states and 5867 transitions. [2023-12-02 16:12:37,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 16:12:37,108 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2023-12-02 16:12:37,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:37,116 INFO L225 Difference]: With dead ends: 2919 [2023-12-02 16:12:37,116 INFO L226 Difference]: Without dead ends: 2903 [2023-12-02 16:12:37,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=326, Invalid=1234, Unknown=0, NotChecked=0, Total=1560 [2023-12-02 16:12:37,117 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 755 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 2172 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:37,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 2172 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 16:12:37,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2023-12-02 16:12:37,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 2895. [2023-12-02 16:12:37,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2895 states, 2885 states have (on average 2.021837088388215) internal successors, (5833), 2894 states have internal predecessors, (5833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:37,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 5833 transitions. [2023-12-02 16:12:37,167 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 5833 transitions. Word has length 111 [2023-12-02 16:12:37,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:37,168 INFO L495 AbstractCegarLoop]: Abstraction has 2895 states and 5833 transitions. [2023-12-02 16:12:37,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:37,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 5833 transitions. [2023-12-02 16:12:37,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:12:37,171 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:37,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:12:37,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:12:37,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-02 16:12:37,372 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:37,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:37,373 INFO L85 PathProgramCache]: Analyzing trace with hash 906601563, now seen corresponding path program 2 times [2023-12-02 16:12:37,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:37,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819428312] [2023-12-02 16:12:37,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:37,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:38,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:12:38,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:38,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819428312] [2023-12-02 16:12:38,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819428312] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:12:38,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379857980] [2023-12-02 16:12:38,431 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 16:12:38,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:12:38,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:12:38,432 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:12:38,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 16:12:38,574 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 16:12:38,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:12:38,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 16:12:38,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:12:38,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 16:12:38,704 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-12-02 16:12:38,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-12-02 16:12:39,183 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:12:39,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2023-12-02 16:12:39,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:39,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2023-12-02 16:12:39,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-02 16:12:39,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-12-02 16:12:39,410 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:12:39,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-12-02 16:12:39,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 16:12:39,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:39,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 35 [2023-12-02 16:12:39,687 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:12:39,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-12-02 16:12:39,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:39,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:12:39,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:39,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:12:39,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:39,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:12:39,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:12:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:12:39,915 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:12:39,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379857980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:39,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:12:39,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [15] total 26 [2023-12-02 16:12:39,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174193644] [2023-12-02 16:12:39,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:39,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 16:12:39,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:39,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 16:12:39,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2023-12-02 16:12:39,918 INFO L87 Difference]: Start difference. First operand 2895 states and 5833 transitions. Second operand has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:41,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:41,535 INFO L93 Difference]: Finished difference Result 2942 states and 5909 transitions. [2023-12-02 16:12:41,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-02 16:12:41,536 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2023-12-02 16:12:41,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:41,543 INFO L225 Difference]: With dead ends: 2942 [2023-12-02 16:12:41,543 INFO L226 Difference]: Without dead ends: 2929 [2023-12-02 16:12:41,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=393, Invalid=1587, Unknown=0, NotChecked=0, Total=1980 [2023-12-02 16:12:41,544 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 589 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 2344 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:41,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 2344 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-02 16:12:41,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2023-12-02 16:12:41,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 2909. [2023-12-02 16:12:41,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2909 states, 2899 states have (on average 2.0189720593308036) internal successors, (5853), 2908 states have internal predecessors, (5853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:41,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2909 states to 2909 states and 5853 transitions. [2023-12-02 16:12:41,591 INFO L78 Accepts]: Start accepts. Automaton has 2909 states and 5853 transitions. Word has length 111 [2023-12-02 16:12:41,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:41,592 INFO L495 AbstractCegarLoop]: Abstraction has 2909 states and 5853 transitions. [2023-12-02 16:12:41,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:41,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2909 states and 5853 transitions. [2023-12-02 16:12:41,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:12:41,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:41,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:12:41,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 16:12:41,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-02 16:12:41,795 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:41,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:41,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2049853731, now seen corresponding path program 3 times [2023-12-02 16:12:41,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:41,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681909145] [2023-12-02 16:12:41,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:41,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:42,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:12:42,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:42,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681909145] [2023-12-02 16:12:42,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681909145] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:12:42,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616680147] [2023-12-02 16:12:42,823 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 16:12:42,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:12:42,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:12:42,824 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:12:42,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 16:12:43,179 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 16:12:43,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:12:43,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 69 conjunts are in the unsatisfiable core [2023-12-02 16:12:43,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:12:43,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 16:12:43,238 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-12-02 16:12:43,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-12-02 16:12:43,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:43,355 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-12-02 16:12:43,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2023-12-02 16:12:44,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-12-02 16:12:44,276 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:12:44,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-12-02 16:12:44,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:44,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2023-12-02 16:12:44,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 16:12:44,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-02 16:12:45,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:12:45,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:45,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 16:12:45,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-12-02 16:12:45,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-12-02 16:12:45,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:45,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-12-02 16:12:45,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:45,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-12-02 16:12:45,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:12:45,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-12-02 16:12:45,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-12-02 16:12:45,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:12:45,530 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:12:45,562 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (* c_threadThread1of1ForFork0_~j~0 4))) (and (forall ((v_ArrVal_630 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_#t~mem25#1.base| v_ArrVal_630) c_~datas~0.base) (+ c_~datas~0.offset .cse0)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_630 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_#t~mem25#1.base| v_ArrVal_630) c_~datas~0.base) (+ c_~datas~0.offset .cse0 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_630 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_#t~mem25#1.base| v_ArrVal_630) c_~datas~0.base) (+ c_~datas~0.offset 3 .cse0)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_630 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_#t~mem25#1.base| v_ArrVal_630) c_~datas~0.base) (+ c_~datas~0.offset 2 .cse0)) |c_threadThread1of1ForFork0_#t~nondet4|)))) is different from false [2023-12-02 16:12:45,612 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (* c_threadThread1of1ForFork0_~j~0 4))) (and (forall ((v_ArrVal_629 (Array Int Int)) (v_ArrVal_630 (Array Int Int))) (= (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_629) |c_ULTIMATE.start_main_#t~mem25#1.base| v_ArrVal_630) c_~datas~0.base) (+ c_~datas~0.offset .cse0 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_629 (Array Int Int)) (v_ArrVal_630 (Array Int Int))) (= |c_threadThread1of1ForFork0_#t~nondet4| (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_629) |c_ULTIMATE.start_main_#t~mem25#1.base| v_ArrVal_630) c_~datas~0.base) (+ c_~datas~0.offset 3 .cse0)))) (forall ((v_ArrVal_629 (Array Int Int)) (v_ArrVal_630 (Array Int Int))) (= (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_629) |c_ULTIMATE.start_main_#t~mem25#1.base| v_ArrVal_630) c_~datas~0.base) (+ c_~datas~0.offset .cse0)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_629 (Array Int Int)) (v_ArrVal_630 (Array Int Int))) (= (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_629) |c_ULTIMATE.start_main_#t~mem25#1.base| v_ArrVal_630) c_~datas~0.base) (+ c_~datas~0.offset 2 .cse0)) |c_threadThread1of1ForFork0_#t~nondet4|)))) is different from false [2023-12-02 16:12:45,668 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (* c_threadThread1of1ForFork0_~j~0 4))) (let ((.cse1 (+ c_~datas~0.offset 3 .cse2))) (let ((.cse0 (store |c_#race| c_~datas~0.base (store (select |c_#race| c_~datas~0.base) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|)))) (and (forall ((v_ArrVal_629 (Array Int Int)) (v_ArrVal_630 (Array Int Int))) (= |c_threadThread1of1ForFork0_#t~nondet4| (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_629) |c_ULTIMATE.start_main_#t~mem25#1.base| v_ArrVal_630) c_~datas~0.base) .cse1))) (forall ((v_ArrVal_629 (Array Int Int)) (v_ArrVal_630 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_629) |c_ULTIMATE.start_main_#t~mem25#1.base| v_ArrVal_630) c_~datas~0.base) (+ c_~datas~0.offset .cse2)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_629 (Array Int Int)) (v_ArrVal_630 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_629) |c_ULTIMATE.start_main_#t~mem25#1.base| v_ArrVal_630) c_~datas~0.base) (+ c_~datas~0.offset 2 .cse2)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_629 (Array Int Int)) (v_ArrVal_630 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_629) |c_ULTIMATE.start_main_#t~mem25#1.base| v_ArrVal_630) c_~datas~0.base) (+ c_~datas~0.offset .cse2 1)) |c_threadThread1of1ForFork0_#t~nondet4|)))))) is different from false [2023-12-02 16:12:45,947 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (* c_threadThread1of1ForFork0_~j~0 4))) (let ((.cse0 (+ c_~datas~0.offset 2 .cse2)) (.cse1 (+ c_~datas~0.offset 3 .cse2))) (and (forall ((v_ArrVal_623 (Array Int Int)) (v_ArrVal_629 (Array Int Int)) (v_ArrVal_630 (Array Int Int))) (= (select (select (store (store (store |c_#race| c_~datas~0.base (store (store (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_623) c_~datas~0.base) .cse0 |c_threadThread1of1ForFork0_#t~nondet4|) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|)) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_629) |c_ULTIMATE.start_main_#t~mem25#1.base| v_ArrVal_630) c_~datas~0.base) (+ c_~datas~0.offset .cse2 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_623 (Array Int Int)) (v_ArrVal_629 (Array Int Int)) (v_ArrVal_630 (Array Int Int))) (= (select (select (store (store (store |c_#race| c_~datas~0.base (store (store (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_623) c_~datas~0.base) .cse0 |c_threadThread1of1ForFork0_#t~nondet4|) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|)) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_629) |c_ULTIMATE.start_main_#t~mem25#1.base| v_ArrVal_630) c_~datas~0.base) .cse1) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_623 (Array Int Int)) (v_ArrVal_629 (Array Int Int)) (v_ArrVal_630 (Array Int Int))) (= (select (select (store (store (store |c_#race| c_~datas~0.base (store (store (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_623) c_~datas~0.base) .cse0 |c_threadThread1of1ForFork0_#t~nondet4|) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|)) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_629) |c_ULTIMATE.start_main_#t~mem25#1.base| v_ArrVal_630) c_~datas~0.base) .cse0) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_623 (Array Int Int)) (v_ArrVal_629 (Array Int Int)) (v_ArrVal_630 (Array Int Int))) (= (select (select (store (store (store |c_#race| c_~datas~0.base (store (store (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_623) c_~datas~0.base) .cse0 |c_threadThread1of1ForFork0_#t~nondet4|) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|)) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_629) |c_ULTIMATE.start_main_#t~mem25#1.base| v_ArrVal_630) c_~datas~0.base) (+ c_~datas~0.offset .cse2)) |c_threadThread1of1ForFork0_#t~nondet4|))))) is different from false [2023-12-02 16:12:45,986 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (* c_threadThread1of1ForFork0_~j~0 4))) (let ((.cse0 (+ c_~datas~0.offset 2 .cse3)) (.cse1 (+ c_~datas~0.offset 3 .cse3)) (.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|))) (and (forall ((v_ArrVal_623 (Array Int Int)) (v_ArrVal_629 (Array Int Int)) (v_ArrVal_630 (Array Int Int))) (= (select (select (store (store (store |c_#race| c_~datas~0.base (store (store (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_623) c_~datas~0.base) .cse0 |c_threadThread1of1ForFork0_#t~nondet4|) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|)) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_629) .cse2 v_ArrVal_630) c_~datas~0.base) (+ c_~datas~0.offset .cse3)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_623 (Array Int Int)) (v_ArrVal_629 (Array Int Int)) (v_ArrVal_630 (Array Int Int))) (= (select (select (store (store (store |c_#race| c_~datas~0.base (store (store (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_623) c_~datas~0.base) .cse0 |c_threadThread1of1ForFork0_#t~nondet4|) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|)) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_629) .cse2 v_ArrVal_630) c_~datas~0.base) .cse1) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_623 (Array Int Int)) (v_ArrVal_629 (Array Int Int)) (v_ArrVal_630 (Array Int Int))) (= (select (select (store (store (store |c_#race| c_~datas~0.base (store (store (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_623) c_~datas~0.base) .cse0 |c_threadThread1of1ForFork0_#t~nondet4|) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|)) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_629) .cse2 v_ArrVal_630) c_~datas~0.base) .cse0) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_623 (Array Int Int)) (v_ArrVal_629 (Array Int Int)) (v_ArrVal_630 (Array Int Int))) (= (select (select (store (store (store |c_#race| c_~datas~0.base (store (store (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_623) c_~datas~0.base) .cse0 |c_threadThread1of1ForFork0_#t~nondet4|) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|)) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_629) .cse2 v_ArrVal_630) c_~datas~0.base) (+ c_~datas~0.offset .cse3 1)) |c_threadThread1of1ForFork0_#t~nondet4|))))) is different from false [2023-12-02 16:12:46,309 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:12:46,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 112 [2023-12-02 16:12:46,316 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:12:46,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 144 treesize of output 95 [2023-12-02 16:12:46,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 52 [2023-12-02 16:12:46,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2023-12-02 16:12:46,346 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 16:12:46,347 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 16:12:46,349 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 16:12:46,349 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 16:12:46,354 INFO L349 Elim1Store]: treesize reduction 25, result has 3.8 percent of original size [2023-12-02 16:12:46,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 1 [2023-12-02 16:12:46,356 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 16:12:46,357 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 16:12:46,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2023-12-02 16:12:46,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 64 [2023-12-02 16:12:46,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2023-12-02 16:12:47,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-12-02 16:12:47,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616680147] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:12:47,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1675412592] [2023-12-02 16:12:47,201 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 16:12:47,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:12:47,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 20, 16] total 47 [2023-12-02 16:12:47,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444136746] [2023-12-02 16:12:47,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:12:47,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-12-02 16:12:47,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:12:47,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-12-02 16:12:47,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1580, Unknown=51, NotChecked=430, Total=2256 [2023-12-02 16:12:47,207 INFO L87 Difference]: Start difference. First operand 2909 states and 5853 transitions. Second operand has 48 states, 47 states have (on average 5.51063829787234) internal successors, (259), 48 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:58,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:58,537 INFO L93 Difference]: Finished difference Result 10557 states and 21459 transitions. [2023-12-02 16:12:58,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-12-02 16:12:58,538 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.51063829787234) internal successors, (259), 48 states have internal predecessors, (259), 0 states have call successors, (0), 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 111 [2023-12-02 16:12:58,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:58,552 INFO L225 Difference]: With dead ends: 10557 [2023-12-02 16:12:58,552 INFO L226 Difference]: Without dead ends: 10529 [2023-12-02 16:12:58,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 201 SyntacticMatches, 16 SemanticMatches, 127 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 5491 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=2622, Invalid=12548, Unknown=102, NotChecked=1240, Total=16512 [2023-12-02 16:12:58,557 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 5829 mSDsluCounter, 8041 mSDsCounter, 0 mSdLazyCounter, 4082 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5829 SdHoareTripleChecker+Valid, 8462 SdHoareTripleChecker+Invalid, 14422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 4082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9966 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:58,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5829 Valid, 8462 Invalid, 14422 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [374 Valid, 4082 Invalid, 0 Unknown, 9966 Unchecked, 3.9s Time] [2023-12-02 16:12:58,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10529 states. [2023-12-02 16:12:58,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10529 to 4231. [2023-12-02 16:12:58,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4231 states, 4221 states have (on average 2.01895285477375) internal successors, (8522), 4230 states have internal predecessors, (8522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:58,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4231 states to 4231 states and 8522 transitions. [2023-12-02 16:12:58,697 INFO L78 Accepts]: Start accepts. Automaton has 4231 states and 8522 transitions. Word has length 111 [2023-12-02 16:12:58,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:58,697 INFO L495 AbstractCegarLoop]: Abstraction has 4231 states and 8522 transitions. [2023-12-02 16:12:58,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.51063829787234) internal successors, (259), 48 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:12:58,698 INFO L276 IsEmpty]: Start isEmpty. Operand 4231 states and 8522 transitions. [2023-12-02 16:12:58,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:12:58,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:58,703 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:12:58,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 16:12:58,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-02 16:12:58,904 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:12:58,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:58,905 INFO L85 PathProgramCache]: Analyzing trace with hash 447978681, now seen corresponding path program 4 times [2023-12-02 16:12:58,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:12:58,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946568169] [2023-12-02 16:12:58,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:58,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:12:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:59,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:12:59,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:12:59,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946568169] [2023-12-02 16:12:59,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946568169] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:12:59,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586367820] [2023-12-02 16:12:59,920 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 16:12:59,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:12:59,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:12:59,921 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:12:59,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 16:13:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:00,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-02 16:13:00,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:13:00,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 16:13:00,120 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-12-02 16:13:00,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-12-02 16:13:00,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:00,211 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-12-02 16:13:00,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2023-12-02 16:13:00,636 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:13:00,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-12-02 16:13:00,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:00,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2023-12-02 16:13:00,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-02 16:13:00,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:13:00,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-12-02 16:13:00,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:00,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2023-12-02 16:13:00,987 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:13:00,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-12-02 16:13:01,060 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:13:01,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-12-02 16:13:01,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:01,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:13:01,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:01,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:13:01,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:01,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:13:01,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:13:01,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:13:01,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:13:01,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586367820] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:13:01,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:13:01,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [15] total 25 [2023-12-02 16:13:01,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282678006] [2023-12-02 16:13:01,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:13:01,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 16:13:01,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:13:01,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 16:13:01,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=556, Unknown=0, NotChecked=0, Total=650 [2023-12-02 16:13:01,267 INFO L87 Difference]: Start difference. First operand 4231 states and 8522 transitions. Second operand has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:02,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:13:02,434 INFO L93 Difference]: Finished difference Result 4386 states and 8804 transitions. [2023-12-02 16:13:02,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 16:13:02,435 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2023-12-02 16:13:02,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:13:02,440 INFO L225 Difference]: With dead ends: 4386 [2023-12-02 16:13:02,440 INFO L226 Difference]: Without dead ends: 4371 [2023-12-02 16:13:02,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=273, Invalid=1209, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 16:13:02,441 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 635 mSDsluCounter, 1693 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 16:13:02,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 1928 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 16:13:02,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4371 states. [2023-12-02 16:13:02,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4371 to 4259. [2023-12-02 16:13:02,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4259 states, 4249 states have (on average 2.01835726053189) internal successors, (8576), 4258 states have internal predecessors, (8576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:02,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4259 states to 4259 states and 8576 transitions. [2023-12-02 16:13:02,503 INFO L78 Accepts]: Start accepts. Automaton has 4259 states and 8576 transitions. Word has length 111 [2023-12-02 16:13:02,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:13:02,503 INFO L495 AbstractCegarLoop]: Abstraction has 4259 states and 8576 transitions. [2023-12-02 16:13:02,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:02,503 INFO L276 IsEmpty]: Start isEmpty. Operand 4259 states and 8576 transitions. [2023-12-02 16:13:02,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:13:02,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:13:02,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:13:02,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 16:13:02,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:13:02,709 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:13:02,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:13:02,710 INFO L85 PathProgramCache]: Analyzing trace with hash -741280635, now seen corresponding path program 5 times [2023-12-02 16:13:02,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:13:02,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970685234] [2023-12-02 16:13:02,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:02,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:13:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:03,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:13:03,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:13:03,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970685234] [2023-12-02 16:13:03,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970685234] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:13:03,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247645886] [2023-12-02 16:13:03,985 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 16:13:03,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:13:03,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:13:03,987 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:13:03,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 16:13:04,240 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 16:13:04,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:13:04,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 56 conjunts are in the unsatisfiable core [2023-12-02 16:13:04,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:13:04,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 16:13:04,378 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-12-02 16:13:04,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-12-02 16:13:05,034 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:13:05,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2023-12-02 16:13:05,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:05,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2023-12-02 16:13:05,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 16:13:05,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 16:13:05,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-02 16:13:05,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:05,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 16:13:05,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-12-02 16:13:05,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-12-02 16:13:05,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:05,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-12-02 16:13:05,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:05,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-12-02 16:13:05,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:05,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-12-02 16:13:05,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-12-02 16:13:06,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:13:06,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:13:06,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247645886] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:13:06,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:13:06,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [15] total 32 [2023-12-02 16:13:06,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428026000] [2023-12-02 16:13:06,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:13:06,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 16:13:06,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:13:06,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 16:13:06,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=921, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 16:13:06,025 INFO L87 Difference]: Start difference. First operand 4259 states and 8576 transitions. Second operand has 19 states, 18 states have (on average 6.166666666666667) internal successors, (111), 19 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:08,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:13:08,433 INFO L93 Difference]: Finished difference Result 7376 states and 14864 transitions. [2023-12-02 16:13:08,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-02 16:13:08,433 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.166666666666667) internal successors, (111), 19 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2023-12-02 16:13:08,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:13:08,443 INFO L225 Difference]: With dead ends: 7376 [2023-12-02 16:13:08,443 INFO L226 Difference]: Without dead ends: 7361 [2023-12-02 16:13:08,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=558, Invalid=2748, Unknown=0, NotChecked=0, Total=3306 [2023-12-02 16:13:08,445 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 1662 mSDsluCounter, 2706 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 3051 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:13:08,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 3051 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 16:13:08,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7361 states. [2023-12-02 16:13:08,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7361 to 4332. [2023-12-02 16:13:08,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4332 states, 4322 states have (on average 2.018047200370199) internal successors, (8722), 4331 states have internal predecessors, (8722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:08,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 8722 transitions. [2023-12-02 16:13:08,532 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 8722 transitions. Word has length 111 [2023-12-02 16:13:08,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:13:08,533 INFO L495 AbstractCegarLoop]: Abstraction has 4332 states and 8722 transitions. [2023-12-02 16:13:08,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.166666666666667) internal successors, (111), 19 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:08,533 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 8722 transitions. [2023-12-02 16:13:08,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:13:08,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:13:08,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:13:08,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 16:13:08,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:13:08,738 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:13:08,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:13:08,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1969604542, now seen corresponding path program 1 times [2023-12-02 16:13:08,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:13:08,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551088237] [2023-12-02 16:13:08,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:08,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:13:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:09,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:13:09,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:13:09,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551088237] [2023-12-02 16:13:09,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551088237] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:13:09,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976966720] [2023-12-02 16:13:09,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:09,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:13:09,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:13:09,622 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:13:09,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 16:13:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:09,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-02 16:13:09,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:13:09,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 16:13:09,982 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-12-02 16:13:09,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-12-02 16:13:10,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:10,108 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-12-02 16:13:10,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2023-12-02 16:13:10,755 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:13:10,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 44 [2023-12-02 16:13:10,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-12-02 16:13:10,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:10,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2023-12-02 16:13:10,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:10,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:13:10,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:13:11,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-12-02 16:13:11,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 16:13:11,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:13:11,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-02 16:13:11,202 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:13:11,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-12-02 16:13:11,280 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:13:11,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-12-02 16:13:11,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:13:11,351 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:13:11,390 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_957 (Array Int Int))) (= (select (select (store |c_#race| c_~datas~0.base v_ArrVal_957) |c_ULTIMATE.start_main_#t~mem25#1.base|) (+ |c_ULTIMATE.start_main_#t~mem25#1.offset| (* |c_ULTIMATE.start_main_~i~1#1| 4))) 0)) is different from false [2023-12-02 16:13:11,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:13:11,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2023-12-02 16:13:11,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2023-12-02 16:13:11,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-12-02 16:13:11,429 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_954 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| c_~datas~0.base v_ArrVal_954) |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|) c_~datas~0.base))) is different from false [2023-12-02 16:13:11,598 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_953 (Array Int Int)) (v_ArrVal_954 (Array Int Int))) (not (= (select (select (store (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|) v_ArrVal_953) c_~datas~0.base v_ArrVal_954) |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|) c_~datas~0.base))) is different from false [2023-12-02 16:13:11,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 119 [2023-12-02 16:13:11,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 50 [2023-12-02 16:13:11,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 46 [2023-12-02 16:13:11,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2023-12-02 16:13:12,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:13:12,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976966720] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:13:12,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [654856403] [2023-12-02 16:13:12,270 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 16:13:12,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:13:12,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19, 17] total 43 [2023-12-02 16:13:12,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850755619] [2023-12-02 16:13:12,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:13:12,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-02 16:13:12,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:13:12,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-02 16:13:12,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1460, Unknown=13, NotChecked=240, Total=1892 [2023-12-02 16:13:12,275 INFO L87 Difference]: Start difference. First operand 4332 states and 8722 transitions. Second operand has 44 states, 43 states have (on average 6.3023255813953485) internal successors, (271), 44 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:14,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:13:14,786 INFO L93 Difference]: Finished difference Result 4335 states and 8708 transitions. [2023-12-02 16:13:14,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-02 16:13:14,786 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 6.3023255813953485) internal successors, (271), 44 states have internal predecessors, (271), 0 states have call successors, (0), 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 111 [2023-12-02 16:13:14,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:13:14,791 INFO L225 Difference]: With dead ends: 4335 [2023-12-02 16:13:14,791 INFO L226 Difference]: Without dead ends: 3991 [2023-12-02 16:13:14,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 194 SyntacticMatches, 6 SemanticMatches, 63 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1024 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=571, Invalid=3205, Unknown=18, NotChecked=366, Total=4160 [2023-12-02 16:13:14,793 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1595 mSDsluCounter, 4116 mSDsCounter, 0 mSdLazyCounter, 1691 mSolverCounterSat, 56 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 4421 SdHoareTripleChecker+Invalid, 3470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1691 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 1716 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:13:14,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 4421 Invalid, 3470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1691 Invalid, 7 Unknown, 1716 Unchecked, 1.4s Time] [2023-12-02 16:13:14,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3991 states. [2023-12-02 16:13:14,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3991 to 3756. [2023-12-02 16:13:14,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3756 states, 3748 states have (on average 2.032017075773746) internal successors, (7616), 3755 states have internal predecessors, (7616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:14,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3756 states to 3756 states and 7616 transitions. [2023-12-02 16:13:14,844 INFO L78 Accepts]: Start accepts. Automaton has 3756 states and 7616 transitions. Word has length 111 [2023-12-02 16:13:14,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:13:14,845 INFO L495 AbstractCegarLoop]: Abstraction has 3756 states and 7616 transitions. [2023-12-02 16:13:14,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 6.3023255813953485) internal successors, (271), 44 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:14,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3756 states and 7616 transitions. [2023-12-02 16:13:14,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:13:14,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:13:14,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:13:14,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 16:13:15,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:13:15,049 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:13:15,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:13:15,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1531033093, now seen corresponding path program 6 times [2023-12-02 16:13:15,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:13:15,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341313362] [2023-12-02 16:13:15,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:15,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:13:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:15,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:13:15,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:13:15,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341313362] [2023-12-02 16:13:15,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341313362] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:13:15,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275058827] [2023-12-02 16:13:15,833 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 16:13:15,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:13:15,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:13:15,834 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:13:15,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 16:13:16,067 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 16:13:16,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:13:16,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 61 conjunts are in the unsatisfiable core [2023-12-02 16:13:16,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:13:16,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 16:13:16,208 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-12-02 16:13:16,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-12-02 16:13:17,239 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:13:17,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-12-02 16:13:17,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:17,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-12-02 16:13:17,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-12-02 16:13:17,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 16:13:17,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 16:13:17,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-02 16:13:18,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-12-02 16:13:18,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-12-02 16:13:18,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:18,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-12-02 16:13:18,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-12-02 16:13:18,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:13:18,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:13:18,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275058827] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:13:18,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:13:18,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [15] total 32 [2023-12-02 16:13:18,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30480655] [2023-12-02 16:13:18,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:13:18,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 16:13:18,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:13:18,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 16:13:18,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=923, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 16:13:18,334 INFO L87 Difference]: Start difference. First operand 3756 states and 7616 transitions. Second operand has 19 states, 18 states have (on average 6.166666666666667) internal successors, (111), 19 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:20,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:13:20,207 INFO L93 Difference]: Finished difference Result 6715 states and 13626 transitions. [2023-12-02 16:13:20,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 16:13:20,208 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.166666666666667) internal successors, (111), 19 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2023-12-02 16:13:20,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:13:20,219 INFO L225 Difference]: With dead ends: 6715 [2023-12-02 16:13:20,220 INFO L226 Difference]: Without dead ends: 6574 [2023-12-02 16:13:20,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=430, Invalid=2222, Unknown=0, NotChecked=0, Total=2652 [2023-12-02 16:13:20,222 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 1249 mSDsluCounter, 1799 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 16:13:20,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 2022 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 16:13:20,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6574 states. [2023-12-02 16:13:20,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6574 to 3755. [2023-12-02 16:13:20,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3755 states, 3747 states have (on average 2.0317587403255937) internal successors, (7613), 3754 states have internal predecessors, (7613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:20,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3755 states to 3755 states and 7613 transitions. [2023-12-02 16:13:20,298 INFO L78 Accepts]: Start accepts. Automaton has 3755 states and 7613 transitions. Word has length 111 [2023-12-02 16:13:20,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:13:20,298 INFO L495 AbstractCegarLoop]: Abstraction has 3755 states and 7613 transitions. [2023-12-02 16:13:20,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.166666666666667) internal successors, (111), 19 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:20,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3755 states and 7613 transitions. [2023-12-02 16:13:20,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:13:20,303 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:13:20,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:13:20,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-02 16:13:20,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:13:20,504 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:13:20,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:13:20,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1647010625, now seen corresponding path program 7 times [2023-12-02 16:13:20,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:13:20,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687470098] [2023-12-02 16:13:20,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:20,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:13:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:21,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:13:21,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:13:21,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687470098] [2023-12-02 16:13:21,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687470098] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:13:21,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668902962] [2023-12-02 16:13:21,240 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 16:13:21,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:13:21,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:13:21,242 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:13:21,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 16:13:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:21,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 16:13:21,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:13:21,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 16:13:21,447 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-12-02 16:13:21,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-12-02 16:13:21,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:21,539 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-12-02 16:13:21,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2023-12-02 16:13:21,868 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:13:21,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-12-02 16:13:21,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:13:22,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-02 16:13:22,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-12-02 16:13:22,202 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:13:22,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-12-02 16:13:22,272 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:13:22,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-12-02 16:13:22,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:13:22,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:13:22,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:13:22,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:13:22,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:13:22,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668902962] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:13:22,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:13:22,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [15] total 25 [2023-12-02 16:13:22,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373540952] [2023-12-02 16:13:22,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:13:22,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 16:13:22,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:13:22,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 16:13:22,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2023-12-02 16:13:22,398 INFO L87 Difference]: Start difference. First operand 3755 states and 7613 transitions. Second operand has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:23,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:13:23,333 INFO L93 Difference]: Finished difference Result 3750 states and 7604 transitions. [2023-12-02 16:13:23,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 16:13:23,334 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2023-12-02 16:13:23,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:13:23,338 INFO L225 Difference]: With dead ends: 3750 [2023-12-02 16:13:23,338 INFO L226 Difference]: Without dead ends: 3590 [2023-12-02 16:13:23,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=259, Invalid=1147, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 16:13:23,339 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 561 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 16:13:23,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 1249 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 16:13:23,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2023-12-02 16:13:23,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3563. [2023-12-02 16:13:23,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3563 states, 3556 states have (on average 2.0388076490438696) internal successors, (7250), 3562 states have internal predecessors, (7250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:23,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3563 states to 3563 states and 7250 transitions. [2023-12-02 16:13:23,385 INFO L78 Accepts]: Start accepts. Automaton has 3563 states and 7250 transitions. Word has length 111 [2023-12-02 16:13:23,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:13:23,385 INFO L495 AbstractCegarLoop]: Abstraction has 3563 states and 7250 transitions. [2023-12-02 16:13:23,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:23,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3563 states and 7250 transitions. [2023-12-02 16:13:23,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-02 16:13:23,389 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:13:23,389 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:13:23,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 16:13:23,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-12-02 16:13:23,590 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:13:23,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:13:23,590 INFO L85 PathProgramCache]: Analyzing trace with hash -602295719, now seen corresponding path program 1 times [2023-12-02 16:13:23,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:13:23,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693820366] [2023-12-02 16:13:23,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:23,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:13:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:23,692 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:13:23,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:13:23,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693820366] [2023-12-02 16:13:23,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693820366] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:13:23,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:13:23,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:13:23,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765497531] [2023-12-02 16:13:23,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:13:23,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:13:23,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:13:23,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:13:23,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:13:23,693 INFO L87 Difference]: Start difference. First operand 3563 states and 7250 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:23,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:13:23,714 INFO L93 Difference]: Finished difference Result 2566 states and 4985 transitions. [2023-12-02 16:13:23,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:13:23,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2023-12-02 16:13:23,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:13:23,717 INFO L225 Difference]: With dead ends: 2566 [2023-12-02 16:13:23,717 INFO L226 Difference]: Without dead ends: 2566 [2023-12-02 16:13:23,718 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 16:13:23,718 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 90 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:13:23,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 286 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:13:23,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2566 states. [2023-12-02 16:13:23,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2566 to 2566. [2023-12-02 16:13:23,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2564 states have (on average 1.9442277691107643) internal successors, (4985), 2565 states have internal predecessors, (4985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 4985 transitions. [2023-12-02 16:13:23,754 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 4985 transitions. Word has length 117 [2023-12-02 16:13:23,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:13:23,754 INFO L495 AbstractCegarLoop]: Abstraction has 2566 states and 4985 transitions. [2023-12-02 16:13:23,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:23,755 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 4985 transitions. [2023-12-02 16:13:23,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-02 16:13:23,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:13:23,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:13:23,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-02 16:13:23,759 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:13:23,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:13:23,760 INFO L85 PathProgramCache]: Analyzing trace with hash -768484250, now seen corresponding path program 1 times [2023-12-02 16:13:23,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:13:23,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593713507] [2023-12-02 16:13:23,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:23,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:13:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:23,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:13:23,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:13:23,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593713507] [2023-12-02 16:13:23,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593713507] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:13:23,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006048584] [2023-12-02 16:13:23,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:23,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:13:23,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:13:23,880 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:13:23,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 16:13:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:24,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:13:24,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:13:24,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:13:24,115 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:13:24,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:13:24,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006048584] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:13:24,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1765555397] [2023-12-02 16:13:24,197 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 16:13:24,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:13:24,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2023-12-02 16:13:24,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899628253] [2023-12-02 16:13:24,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:13:24,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 16:13:24,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:13:24,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 16:13:24,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-02 16:13:24,200 INFO L87 Difference]: Start difference. First operand 2566 states and 4985 transitions. Second operand has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 9 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:24,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:13:24,263 INFO L93 Difference]: Finished difference Result 2447 states and 4768 transitions. [2023-12-02 16:13:24,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 16:13:24,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 9 states have internal predecessors, (167), 0 states have call successors, (0), 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 118 [2023-12-02 16:13:24,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:13:24,267 INFO L225 Difference]: With dead ends: 2447 [2023-12-02 16:13:24,267 INFO L226 Difference]: Without dead ends: 2411 [2023-12-02 16:13:24,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 231 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-02 16:13:24,268 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 158 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:13:24,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 801 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:13:24,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2411 states. [2023-12-02 16:13:24,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2411 to 2411. [2023-12-02 16:13:24,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2411 states, 2410 states have (on average 1.9448132780082987) internal successors, (4687), 2410 states have internal predecessors, (4687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:24,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2411 states to 2411 states and 4687 transitions. [2023-12-02 16:13:24,304 INFO L78 Accepts]: Start accepts. Automaton has 2411 states and 4687 transitions. Word has length 118 [2023-12-02 16:13:24,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:13:24,305 INFO L495 AbstractCegarLoop]: Abstraction has 2411 states and 4687 transitions. [2023-12-02 16:13:24,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 9 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:24,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2411 states and 4687 transitions. [2023-12-02 16:13:24,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 16:13:24,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:13:24,310 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:13:24,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 16:13:24,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-12-02 16:13:24,510 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:13:24,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:13:24,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1178559686, now seen corresponding path program 1 times [2023-12-02 16:13:24,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:13:24,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361210209] [2023-12-02 16:13:24,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:24,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:13:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:24,681 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 16:13:24,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:13:24,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361210209] [2023-12-02 16:13:24,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361210209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:13:24,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:13:24,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:13:24,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138361510] [2023-12-02 16:13:24,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:13:24,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:13:24,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:13:24,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:13:24,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:13:24,683 INFO L87 Difference]: Start difference. First operand 2411 states and 4687 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:24,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:13:24,777 INFO L93 Difference]: Finished difference Result 3207 states and 6272 transitions. [2023-12-02 16:13:24,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:13:24,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2023-12-02 16:13:24,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:13:24,781 INFO L225 Difference]: With dead ends: 3207 [2023-12-02 16:13:24,781 INFO L226 Difference]: Without dead ends: 3207 [2023-12-02 16:13:24,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:13:24,782 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 111 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:13:24,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 479 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:13:24,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2023-12-02 16:13:24,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 2427. [2023-12-02 16:13:24,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 2426 states have (on average 1.944765045342127) internal successors, (4718), 2426 states have internal predecessors, (4718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:24,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 4718 transitions. [2023-12-02 16:13:24,819 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 4718 transitions. Word has length 120 [2023-12-02 16:13:24,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:13:24,819 INFO L495 AbstractCegarLoop]: Abstraction has 2427 states and 4718 transitions. [2023-12-02 16:13:24,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:24,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 4718 transitions. [2023-12-02 16:13:24,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 16:13:24,823 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:13:24,823 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:13:24,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-02 16:13:24,823 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:13:24,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:13:24,824 INFO L85 PathProgramCache]: Analyzing trace with hash -193939634, now seen corresponding path program 1 times [2023-12-02 16:13:24,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:13:24,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750718153] [2023-12-02 16:13:24,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:24,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:13:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:24,948 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 16:13:24,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:13:24,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750718153] [2023-12-02 16:13:24,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750718153] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:13:24,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042192236] [2023-12-02 16:13:24,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:24,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:13:24,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:13:24,950 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:13:24,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 16:13:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:25,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 16:13:25,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:13:25,255 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:13:25,255 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:13:25,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042192236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:13:25,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:13:25,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 10 [2023-12-02 16:13:25,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953037197] [2023-12-02 16:13:25,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:13:25,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 16:13:25,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:13:25,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 16:13:25,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-02 16:13:25,258 INFO L87 Difference]: Start difference. First operand 2427 states and 4718 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:25,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:13:25,403 INFO L93 Difference]: Finished difference Result 2795 states and 5431 transitions. [2023-12-02 16:13:25,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 16:13:25,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2023-12-02 16:13:25,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:13:25,406 INFO L225 Difference]: With dead ends: 2795 [2023-12-02 16:13:25,406 INFO L226 Difference]: Without dead ends: 2795 [2023-12-02 16:13:25,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-12-02 16:13:25,407 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 138 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:13:25,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 760 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:13:25,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2023-12-02 16:13:25,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 2379. [2023-12-02 16:13:25,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2379 states, 2378 states have (on average 1.9314550042052145) internal successors, (4593), 2378 states have internal predecessors, (4593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:25,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 4593 transitions. [2023-12-02 16:13:25,440 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 4593 transitions. Word has length 120 [2023-12-02 16:13:25,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:13:25,440 INFO L495 AbstractCegarLoop]: Abstraction has 2379 states and 4593 transitions. [2023-12-02 16:13:25,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:25,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 4593 transitions. [2023-12-02 16:13:25,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-02 16:13:25,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:13:25,444 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:13:25,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 16:13:25,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-02 16:13:25,644 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:13:25,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:13:25,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1853613256, now seen corresponding path program 1 times [2023-12-02 16:13:25,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:13:25,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826062442] [2023-12-02 16:13:25,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:25,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:13:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:13:25,675 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:13:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:13:25,728 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:13:25,728 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:13:25,729 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2023-12-02 16:13:25,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2023-12-02 16:13:25,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2023-12-02 16:13:25,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2023-12-02 16:13:25,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2023-12-02 16:13:25,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2023-12-02 16:13:25,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2023-12-02 16:13:25,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2023-12-02 16:13:25,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2023-12-02 16:13:25,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2023-12-02 16:13:25,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2023-12-02 16:13:25,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2023-12-02 16:13:25,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2023-12-02 16:13:25,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2023-12-02 16:13:25,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2023-12-02 16:13:25,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2023-12-02 16:13:25,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2023-12-02 16:13:25,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2023-12-02 16:13:25,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-02 16:13:25,737 INFO L445 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:13:25,738 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-02 16:13:25,739 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-12-02 16:13:25,767 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-02 16:13:25,772 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 239 places, 249 transitions, 514 flow [2023-12-02 16:13:30,050 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 209840 states, 209486 states have (on average 3.1005795136667844) internal successors, (649528), 209839 states have internal predecessors, (649528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:30,060 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:13:30,063 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;@7678ada7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:13:30,063 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-12-02 16:13:30,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 209840 states, 209486 states have (on average 3.1005795136667844) internal successors, (649528), 209839 states have internal predecessors, (649528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:30,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 16:13:30,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:13:30,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:13:30,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:13:30,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:13:30,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1581107677, now seen corresponding path program 1 times [2023-12-02 16:13:30,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:13:30,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604580822] [2023-12-02 16:13:30,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:30,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:13:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:30,562 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 16:13:30,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:13:30,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604580822] [2023-12-02 16:13:30,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604580822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:13:30,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:13:30,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:13:30,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584874946] [2023-12-02 16:13:30,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:13:30,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:13:30,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:13:30,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:13:30,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:13:30,882 INFO L87 Difference]: Start difference. First operand has 209840 states, 209486 states have (on average 3.1005795136667844) internal successors, (649528), 209839 states have internal predecessors, (649528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:33,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:13:33,407 INFO L93 Difference]: Finished difference Result 209839 states and 644964 transitions. [2023-12-02 16:13:33,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:13:33,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2023-12-02 16:13:33,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:13:34,344 INFO L225 Difference]: With dead ends: 209839 [2023-12-02 16:13:34,344 INFO L226 Difference]: Without dead ends: 209196 [2023-12-02 16:13:34,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:13:34,345 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 2 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:13:34,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 451 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:13:35,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209196 states. [2023-12-02 16:13:39,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209196 to 209196. [2023-12-02 16:13:40,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209196 states, 208847 states have (on average 3.07961809362835) internal successors, (643169), 209195 states have internal predecessors, (643169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:41,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209196 states to 209196 states and 643169 transitions. [2023-12-02 16:13:41,435 INFO L78 Accepts]: Start accepts. Automaton has 209196 states and 643169 transitions. Word has length 38 [2023-12-02 16:13:41,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:13:41,435 INFO L495 AbstractCegarLoop]: Abstraction has 209196 states and 643169 transitions. [2023-12-02 16:13:41,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:41,435 INFO L276 IsEmpty]: Start isEmpty. Operand 209196 states and 643169 transitions. [2023-12-02 16:13:41,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 16:13:41,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:13:41,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:13:41,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-02 16:13:41,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:13:41,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:13:41,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1181063058, now seen corresponding path program 1 times [2023-12-02 16:13:41,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:13:41,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219420573] [2023-12-02 16:13:41,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:41,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:13:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:41,458 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 16:13:41,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:13:41,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219420573] [2023-12-02 16:13:41,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219420573] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:13:41,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:13:41,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:13:41,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352508101] [2023-12-02 16:13:41,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:13:41,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:13:41,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:13:41,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:13:41,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:13:41,460 INFO L87 Difference]: Start difference. First operand 209196 states and 643169 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:43,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:13:43,693 INFO L93 Difference]: Finished difference Result 279765 states and 859050 transitions. [2023-12-02 16:13:43,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:13:43,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-12-02 16:13:43,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:13:44,914 INFO L225 Difference]: With dead ends: 279765 [2023-12-02 16:13:44,914 INFO L226 Difference]: Without dead ends: 279765 [2023-12-02 16:13:44,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:13:44,915 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 189 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:13:44,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 557 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:13:45,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279765 states. [2023-12-02 16:13:50,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279765 to 209690. [2023-12-02 16:13:51,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209690 states, 209385 states have (on average 3.0661222150583853) internal successors, (642000), 209689 states have internal predecessors, (642000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:52,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209690 states to 209690 states and 642000 transitions. [2023-12-02 16:13:52,369 INFO L78 Accepts]: Start accepts. Automaton has 209690 states and 642000 transitions. Word has length 46 [2023-12-02 16:13:52,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:13:52,369 INFO L495 AbstractCegarLoop]: Abstraction has 209690 states and 642000 transitions. [2023-12-02 16:13:52,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:52,369 INFO L276 IsEmpty]: Start isEmpty. Operand 209690 states and 642000 transitions. [2023-12-02 16:13:52,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 16:13:52,369 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:13:52,370 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] [2023-12-02 16:13:52,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-02 16:13:52,370 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:13:52,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:13:52,370 INFO L85 PathProgramCache]: Analyzing trace with hash -14479288, now seen corresponding path program 1 times [2023-12-02 16:13:52,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:13:52,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781847629] [2023-12-02 16:13:52,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:52,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:13:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:52,411 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 16:13:52,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:13:52,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781847629] [2023-12-02 16:13:52,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781847629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:13:52,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:13:52,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:13:52,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281707306] [2023-12-02 16:13:52,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:13:52,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:13:52,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:13:52,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:13:52,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:13:52,413 INFO L87 Difference]: Start difference. First operand 209690 states and 642000 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:13:54,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:13:54,040 INFO L93 Difference]: Finished difference Result 209704 states and 642013 transitions. [2023-12-02 16:13:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:13:54,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2023-12-02 16:13:54,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:13:54,832 INFO L225 Difference]: With dead ends: 209704 [2023-12-02 16:13:54,832 INFO L226 Difference]: Without dead ends: 209704 [2023-12-02 16:13:54,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:13:54,833 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 114 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:13:54,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 680 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:13:55,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209704 states. [2023-12-02 16:14:00,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209704 to 209691. [2023-12-02 16:14:01,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209691 states, 209386 states have (on average 3.066112347530398) internal successors, (642001), 209690 states have internal predecessors, (642001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:14:01,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209691 states to 209691 states and 642001 transitions. [2023-12-02 16:14:01,783 INFO L78 Accepts]: Start accepts. Automaton has 209691 states and 642001 transitions. Word has length 51 [2023-12-02 16:14:01,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:01,783 INFO L495 AbstractCegarLoop]: Abstraction has 209691 states and 642001 transitions. [2023-12-02 16:14:01,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:14:01,783 INFO L276 IsEmpty]: Start isEmpty. Operand 209691 states and 642001 transitions. [2023-12-02 16:14:01,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 16:14:01,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:01,784 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] [2023-12-02 16:14:01,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-02 16:14:01,784 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:14:01,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:01,785 INFO L85 PathProgramCache]: Analyzing trace with hash -2076789280, now seen corresponding path program 1 times [2023-12-02 16:14:01,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:01,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801067084] [2023-12-02 16:14:01,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:01,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:02,554 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 16:14:02,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:02,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801067084] [2023-12-02 16:14:02,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801067084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:02,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:02,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:14:02,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546631201] [2023-12-02 16:14:02,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:02,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:14:02,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:02,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:14:02,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:14:02,556 INFO L87 Difference]: Start difference. First operand 209691 states and 642001 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:14:04,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:04,945 INFO L93 Difference]: Finished difference Result 302035 states and 919661 transitions. [2023-12-02 16:14:04,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:14:04,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2023-12-02 16:14:04,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:06,355 INFO L225 Difference]: With dead ends: 302035 [2023-12-02 16:14:06,356 INFO L226 Difference]: Without dead ends: 302035 [2023-12-02 16:14:06,356 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 16:14:06,357 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 636 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:06,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 1023 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 16:14:07,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302035 states. [2023-12-02 16:14:13,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302035 to 235182. [2023-12-02 16:14:13,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235182 states, 234898 states have (on average 3.0642065917972907) internal successors, (719776), 235181 states have internal predecessors, (719776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:14:15,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235182 states to 235182 states and 719776 transitions. [2023-12-02 16:14:15,110 INFO L78 Accepts]: Start accepts. Automaton has 235182 states and 719776 transitions. Word has length 52 [2023-12-02 16:14:15,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:15,110 INFO L495 AbstractCegarLoop]: Abstraction has 235182 states and 719776 transitions. [2023-12-02 16:14:15,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:14:15,110 INFO L276 IsEmpty]: Start isEmpty. Operand 235182 states and 719776 transitions. [2023-12-02 16:14:15,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 16:14:15,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:15,110 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] [2023-12-02 16:14:15,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-02 16:14:15,111 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:14:15,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:15,111 INFO L85 PathProgramCache]: Analyzing trace with hash 2104474752, now seen corresponding path program 1 times [2023-12-02 16:14:15,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:15,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343862287] [2023-12-02 16:14:15,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:15,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:15,133 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 16:14:15,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:15,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343862287] [2023-12-02 16:14:15,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343862287] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:15,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:15,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:14:15,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682206570] [2023-12-02 16:14:15,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:15,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:14:15,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:15,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:14:15,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:14:15,135 INFO L87 Difference]: Start difference. First operand 235182 states and 719776 transitions. Second operand has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:14:16,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:16,777 INFO L93 Difference]: Finished difference Result 223657 states and 684603 transitions. [2023-12-02 16:14:16,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:14:16,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2023-12-02 16:14:16,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:17,632 INFO L225 Difference]: With dead ends: 223657 [2023-12-02 16:14:17,632 INFO L226 Difference]: Without dead ends: 222753 [2023-12-02 16:14:17,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:14:17,633 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 194 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:17,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 430 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:14:18,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222753 states. [2023-12-02 16:14:23,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222753 to 222678. [2023-12-02 16:14:23,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222678 states, 222500 states have (on average 3.064647191011236) internal successors, (681884), 222677 states have internal predecessors, (681884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:14:25,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222678 states to 222678 states and 681884 transitions. [2023-12-02 16:14:25,017 INFO L78 Accepts]: Start accepts. Automaton has 222678 states and 681884 transitions. Word has length 56 [2023-12-02 16:14:25,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:25,017 INFO L495 AbstractCegarLoop]: Abstraction has 222678 states and 681884 transitions. [2023-12-02 16:14:25,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:14:25,018 INFO L276 IsEmpty]: Start isEmpty. Operand 222678 states and 681884 transitions. [2023-12-02 16:14:25,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 16:14:25,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:25,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:25,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-02 16:14:25,019 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:14:25,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:25,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1184349591, now seen corresponding path program 1 times [2023-12-02 16:14:25,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:25,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577969371] [2023-12-02 16:14:25,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:25,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:25,072 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 16:14:25,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:25,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577969371] [2023-12-02 16:14:25,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577969371] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:25,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:25,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:14:25,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762074153] [2023-12-02 16:14:25,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:25,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:14:25,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:25,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:14:25,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:14:25,075 INFO L87 Difference]: Start difference. First operand 222678 states and 681884 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:14:26,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:26,909 INFO L93 Difference]: Finished difference Result 222687 states and 681894 transitions. [2023-12-02 16:14:26,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:14:26,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-12-02 16:14:26,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:27,804 INFO L225 Difference]: With dead ends: 222687 [2023-12-02 16:14:27,804 INFO L226 Difference]: Without dead ends: 222687 [2023-12-02 16:14:27,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:14:27,805 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 31 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:27,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 436 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:14:28,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222687 states. [2023-12-02 16:14:33,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222687 to 222679. [2023-12-02 16:14:34,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222679 states, 222501 states have (on average 3.0646379117397227) internal successors, (681885), 222678 states have internal predecessors, (681885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:14:35,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222679 states to 222679 states and 681885 transitions. [2023-12-02 16:14:35,088 INFO L78 Accepts]: Start accepts. Automaton has 222679 states and 681885 transitions. Word has length 60 [2023-12-02 16:14:35,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:35,088 INFO L495 AbstractCegarLoop]: Abstraction has 222679 states and 681885 transitions. [2023-12-02 16:14:35,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:14:35,088 INFO L276 IsEmpty]: Start isEmpty. Operand 222679 states and 681885 transitions. [2023-12-02 16:14:35,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 16:14:35,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:35,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:35,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-02 16:14:35,089 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:14:35,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:35,090 INFO L85 PathProgramCache]: Analyzing trace with hash 609091797, now seen corresponding path program 1 times [2023-12-02 16:14:35,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:35,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597643930] [2023-12-02 16:14:35,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:35,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:35,144 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 16:14:35,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:35,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597643930] [2023-12-02 16:14:35,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597643930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:35,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:35,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:14:35,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200583186] [2023-12-02 16:14:35,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:35,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:14:35,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:35,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:14:35,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:14:35,146 INFO L87 Difference]: Start difference. First operand 222679 states and 681885 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:14:36,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:36,965 INFO L93 Difference]: Finished difference Result 222686 states and 681892 transitions. [2023-12-02 16:14:36,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:14:36,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-12-02 16:14:36,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:37,756 INFO L225 Difference]: With dead ends: 222686 [2023-12-02 16:14:37,756 INFO L226 Difference]: Without dead ends: 222686 [2023-12-02 16:14:37,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:14:37,757 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 20 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:37,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 437 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:14:38,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222686 states. [2023-12-02 16:14:43,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222686 to 222677. [2023-12-02 16:14:44,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222677 states, 222499 states have (on average 3.064651975963937) internal successors, (681882), 222676 states have internal predecessors, (681882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:14:44,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222677 states to 222677 states and 681882 transitions. [2023-12-02 16:14:44,876 INFO L78 Accepts]: Start accepts. Automaton has 222677 states and 681882 transitions. Word has length 60 [2023-12-02 16:14:44,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:44,876 INFO L495 AbstractCegarLoop]: Abstraction has 222677 states and 681882 transitions. [2023-12-02 16:14:44,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:14:44,876 INFO L276 IsEmpty]: Start isEmpty. Operand 222677 states and 681882 transitions. [2023-12-02 16:14:44,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 16:14:44,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:44,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:44,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-02 16:14:44,877 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:14:44,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:44,878 INFO L85 PathProgramCache]: Analyzing trace with hash 268158050, now seen corresponding path program 1 times [2023-12-02 16:14:44,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:44,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442318640] [2023-12-02 16:14:44,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:44,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:44,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:14:44,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:44,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442318640] [2023-12-02 16:14:44,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442318640] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:44,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:44,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:14:44,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359363592] [2023-12-02 16:14:44,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:44,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:14:44,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:44,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:14:44,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:14:44,931 INFO L87 Difference]: Start difference. First operand 222677 states and 681882 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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 16:14:46,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:46,759 INFO L93 Difference]: Finished difference Result 222685 states and 681890 transitions. [2023-12-02 16:14:46,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:14:46,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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 16:14:46,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:47,605 INFO L225 Difference]: With dead ends: 222685 [2023-12-02 16:14:47,605 INFO L226 Difference]: Without dead ends: 222685 [2023-12-02 16:14:47,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:14:47,606 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 23 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:47,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 436 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:14:48,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222685 states. [2023-12-02 16:14:53,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222685 to 222679. [2023-12-02 16:14:53,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222679 states, 222501 states have (on average 3.0646334173778995) internal successors, (681884), 222678 states have internal predecessors, (681884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:14:54,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222679 states to 222679 states and 681884 transitions. [2023-12-02 16:14:54,735 INFO L78 Accepts]: Start accepts. Automaton has 222679 states and 681884 transitions. Word has length 61 [2023-12-02 16:14:54,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:54,735 INFO L495 AbstractCegarLoop]: Abstraction has 222679 states and 681884 transitions. [2023-12-02 16:14:54,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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 16:14:54,736 INFO L276 IsEmpty]: Start isEmpty. Operand 222679 states and 681884 transitions. [2023-12-02 16:14:54,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 16:14:54,736 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:54,736 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 16:14:54,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-02 16:14:54,736 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:14:54,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:54,737 INFO L85 PathProgramCache]: Analyzing trace with hash 30266230, now seen corresponding path program 1 times [2023-12-02 16:14:54,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:54,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475179371] [2023-12-02 16:14:54,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:54,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:54,787 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 16:14:54,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:54,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475179371] [2023-12-02 16:14:54,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475179371] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:54,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:54,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:14:54,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703184766] [2023-12-02 16:14:54,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:54,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:14:54,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:54,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:14:54,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:14:54,788 INFO L87 Difference]: Start difference. First operand 222679 states and 681884 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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 16:14:56,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:56,504 INFO L93 Difference]: Finished difference Result 222684 states and 681888 transitions. [2023-12-02 16:14:56,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:14:56,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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 16:14:56,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:57,369 INFO L225 Difference]: With dead ends: 222684 [2023-12-02 16:14:57,369 INFO L226 Difference]: Without dead ends: 222684 [2023-12-02 16:14:57,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:14:57,370 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 16 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:57,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 586 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:14:57,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222684 states. [2023-12-02 16:15:02,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222684 to 222676. [2023-12-02 16:15:03,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222676 states, 222498 states have (on average 3.064656760959649) internal successors, (681880), 222675 states have internal predecessors, (681880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:15:04,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222676 states to 222676 states and 681880 transitions. [2023-12-02 16:15:04,473 INFO L78 Accepts]: Start accepts. Automaton has 222676 states and 681880 transitions. Word has length 61 [2023-12-02 16:15:04,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:15:04,473 INFO L495 AbstractCegarLoop]: Abstraction has 222676 states and 681880 transitions. [2023-12-02 16:15:04,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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 16:15:04,473 INFO L276 IsEmpty]: Start isEmpty. Operand 222676 states and 681880 transitions. [2023-12-02 16:15:04,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 16:15:04,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:15:04,474 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 16:15:04,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-02 16:15:04,474 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:15:04,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:15:04,474 INFO L85 PathProgramCache]: Analyzing trace with hash -986713251, now seen corresponding path program 1 times [2023-12-02 16:15:04,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:15:04,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239048951] [2023-12-02 16:15:04,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:15:04,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:15:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:15:04,495 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 16:15:04,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:15:04,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239048951] [2023-12-02 16:15:04,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239048951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:15:04,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:15:04,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:15:04,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171653499] [2023-12-02 16:15:04,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:15:04,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:15:04,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:15:04,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:15:04,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:15:04,497 INFO L87 Difference]: Start difference. First operand 222676 states and 681880 transitions. Second operand has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 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 16:15:06,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:15:06,221 INFO L93 Difference]: Finished difference Result 229169 states and 701855 transitions. [2023-12-02 16:15:06,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:15:06,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 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 16:15:06,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:15:07,080 INFO L225 Difference]: With dead ends: 229169 [2023-12-02 16:15:07,080 INFO L226 Difference]: Without dead ends: 229169 [2023-12-02 16:15:07,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:15:07,081 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 95 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:15:07,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 514 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:15:07,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229169 states. [2023-12-02 16:15:12,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229169 to 223883. [2023-12-02 16:15:13,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223883 states, 223712 states have (on average 3.0647394864826207) internal successors, (685619), 223882 states have internal predecessors, (685619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:15:14,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223883 states to 223883 states and 685619 transitions. [2023-12-02 16:15:14,485 INFO L78 Accepts]: Start accepts. Automaton has 223883 states and 685619 transitions. Word has length 65 [2023-12-02 16:15:14,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:15:14,485 INFO L495 AbstractCegarLoop]: Abstraction has 223883 states and 685619 transitions. [2023-12-02 16:15:14,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 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 16:15:14,487 INFO L276 IsEmpty]: Start isEmpty. Operand 223883 states and 685619 transitions. [2023-12-02 16:15:14,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 16:15:14,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:15:14,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:15:14,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-02 16:15:14,488 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:15:14,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:15:14,489 INFO L85 PathProgramCache]: Analyzing trace with hash -376772189, now seen corresponding path program 1 times [2023-12-02 16:15:14,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:15:14,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281456808] [2023-12-02 16:15:14,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:15:14,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:15:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:15:14,805 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 16:15:14,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:15:14,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281456808] [2023-12-02 16:15:14,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281456808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:15:14,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:15:14,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:15:14,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30074678] [2023-12-02 16:15:14,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:15:14,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:15:14,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:15:14,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:15:14,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:15:14,807 INFO L87 Difference]: Start difference. First operand 223883 states and 685619 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:15:17,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:15:17,434 INFO L93 Difference]: Finished difference Result 296559 states and 908545 transitions. [2023-12-02 16:15:17,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:15:17,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-02 16:15:17,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:15:18,719 INFO L225 Difference]: With dead ends: 296559 [2023-12-02 16:15:18,719 INFO L226 Difference]: Without dead ends: 296559 [2023-12-02 16:15:18,719 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 16:15:18,720 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 524 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:15:18,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1361 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 16:15:19,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296559 states. [2023-12-02 16:15:24,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296559 to 240347. [2023-12-02 16:15:24,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240347 states, 240176 states have (on average 3.0640780094597297) internal successors, (735918), 240346 states have internal predecessors, (735918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:15:26,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240347 states to 240347 states and 735918 transitions. [2023-12-02 16:15:26,023 INFO L78 Accepts]: Start accepts. Automaton has 240347 states and 735918 transitions. Word has length 93 [2023-12-02 16:15:26,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:15:26,024 INFO L495 AbstractCegarLoop]: Abstraction has 240347 states and 735918 transitions. [2023-12-02 16:15:26,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:15:26,024 INFO L276 IsEmpty]: Start isEmpty. Operand 240347 states and 735918 transitions. [2023-12-02 16:15:26,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 16:15:26,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:15:26,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:15:26,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-02 16:15:26,026 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:15:26,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:15:26,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1309235741, now seen corresponding path program 1 times [2023-12-02 16:15:26,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:15:26,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674735502] [2023-12-02 16:15:26,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:15:26,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:15:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:15:26,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:15:26,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:15:26,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674735502] [2023-12-02 16:15:26,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674735502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:15:26,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:15:26,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:15:26,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117391250] [2023-12-02 16:15:26,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:15:26,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:15:26,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:15:26,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:15:26,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:15:26,240 INFO L87 Difference]: Start difference. First operand 240347 states and 735918 transitions. Second operand has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:15:27,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:15:27,799 INFO L93 Difference]: Finished difference Result 250948 states and 765964 transitions. [2023-12-02 16:15:27,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:15:27,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-02 16:15:27,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:15:28,902 INFO L225 Difference]: With dead ends: 250948 [2023-12-02 16:15:28,902 INFO L226 Difference]: Without dead ends: 249489 [2023-12-02 16:15:28,902 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 16:15:28,903 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 358 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:15:28,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1127 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:15:29,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249489 states. [2023-12-02 16:15:33,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249489 to 247221. [2023-12-02 16:15:33,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247221 states, 247053 states have (on average 3.0646541430381333) internal successors, (757132), 247220 states have internal predecessors, (757132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:15:34,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247221 states to 247221 states and 757132 transitions. [2023-12-02 16:15:34,472 INFO L78 Accepts]: Start accepts. Automaton has 247221 states and 757132 transitions. Word has length 102 [2023-12-02 16:15:34,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:15:34,472 INFO L495 AbstractCegarLoop]: Abstraction has 247221 states and 757132 transitions. [2023-12-02 16:15:34,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:15:34,472 INFO L276 IsEmpty]: Start isEmpty. Operand 247221 states and 757132 transitions. [2023-12-02 16:15:34,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 16:15:34,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:15:34,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:15:34,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-02 16:15:34,474 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:15:34,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:15:34,475 INFO L85 PathProgramCache]: Analyzing trace with hash 2028423572, now seen corresponding path program 1 times [2023-12-02 16:15:34,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:15:34,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970283310] [2023-12-02 16:15:34,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:15:34,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:15:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:15:35,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:15:35,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:15:35,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970283310] [2023-12-02 16:15:35,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970283310] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:15:35,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:15:35,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 16:15:35,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360565396] [2023-12-02 16:15:35,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:15:35,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 16:15:35,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:15:35,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 16:15:35,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-02 16:15:35,399 INFO L87 Difference]: Start difference. First operand 247221 states and 757132 transitions. Second operand has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:15:37,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:15:37,685 INFO L93 Difference]: Finished difference Result 312259 states and 956588 transitions. [2023-12-02 16:15:37,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 16:15:37,685 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-02 16:15:37,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:15:38,619 INFO L225 Difference]: With dead ends: 312259 [2023-12-02 16:15:38,619 INFO L226 Difference]: Without dead ends: 312259 [2023-12-02 16:15:38,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-02 16:15:38,620 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 913 mSDsluCounter, 2081 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 16:15:38,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 2683 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 16:15:39,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312259 states. [2023-12-02 16:15:44,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312259 to 246610. [2023-12-02 16:15:44,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246610 states, 246443 states have (on average 3.0651874875731915) internal successors, (755394), 246609 states have internal predecessors, (755394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:15:45,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246610 states to 246610 states and 755394 transitions. [2023-12-02 16:15:45,951 INFO L78 Accepts]: Start accepts. Automaton has 246610 states and 755394 transitions. Word has length 105 [2023-12-02 16:15:45,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:15:45,952 INFO L495 AbstractCegarLoop]: Abstraction has 246610 states and 755394 transitions. [2023-12-02 16:15:45,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:15:45,952 INFO L276 IsEmpty]: Start isEmpty. Operand 246610 states and 755394 transitions. [2023-12-02 16:15:45,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 16:15:45,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:15:45,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:15:45,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-02 16:15:45,955 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:15:45,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:15:45,955 INFO L85 PathProgramCache]: Analyzing trace with hash -362468858, now seen corresponding path program 1 times [2023-12-02 16:15:45,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:15:45,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061456830] [2023-12-02 16:15:45,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:15:45,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:15:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:15:46,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:15:46,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:15:46,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061456830] [2023-12-02 16:15:46,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061456830] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:15:46,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:15:46,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 16:15:46,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398648608] [2023-12-02 16:15:46,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:15:46,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 16:15:46,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:15:46,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 16:15:46,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-02 16:15:46,365 INFO L87 Difference]: Start difference. First operand 246610 states and 755394 transitions. Second operand has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:15:48,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:15:48,146 INFO L93 Difference]: Finished difference Result 239918 states and 734855 transitions. [2023-12-02 16:15:48,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 16:15:48,146 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-02 16:15:48,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:15:48,908 INFO L225 Difference]: With dead ends: 239918 [2023-12-02 16:15:48,908 INFO L226 Difference]: Without dead ends: 239278 [2023-12-02 16:15:48,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-02 16:15:48,909 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 539 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:15:48,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 869 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 16:15:49,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239278 states. [2023-12-02 16:15:53,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239278 to 213150. [2023-12-02 16:15:54,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213150 states, 213040 states have (on average 3.067081299286519) internal successors, (653411), 213149 states have internal predecessors, (653411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:15:55,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213150 states to 213150 states and 653411 transitions. [2023-12-02 16:15:55,308 INFO L78 Accepts]: Start accepts. Automaton has 213150 states and 653411 transitions. Word has length 105 [2023-12-02 16:15:55,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:15:55,308 INFO L495 AbstractCegarLoop]: Abstraction has 213150 states and 653411 transitions. [2023-12-02 16:15:55,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:15:55,308 INFO L276 IsEmpty]: Start isEmpty. Operand 213150 states and 653411 transitions. [2023-12-02 16:15:55,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-02 16:15:55,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:15:55,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:15:55,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-02 16:15:55,311 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting threadErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:15:55,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:15:55,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1060748241, now seen corresponding path program 1 times [2023-12-02 16:15:55,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:15:55,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097515268] [2023-12-02 16:15:55,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:15:55,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:15:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:15:55,353 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 16:15:55,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:15:55,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097515268] [2023-12-02 16:15:55,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097515268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:15:55,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:15:55,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:15:55,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536096685] [2023-12-02 16:15:55,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:15:55,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:15:55,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:15:55,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:15:55,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:15:55,355 INFO L87 Difference]: Start difference. First operand 213150 states and 653411 transitions. Second operand has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:15:56,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:15:56,411 INFO L93 Difference]: Finished difference Result 228531 states and 699889 transitions. [2023-12-02 16:15:56,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:15:56,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-02 16:15:56,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:15:57,628 INFO L225 Difference]: With dead ends: 228531 [2023-12-02 16:15:57,629 INFO L226 Difference]: Without dead ends: 219903 [2023-12-02 16:15:57,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:15:57,629 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 143 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:15:57,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 555 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:15:58,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219903 states. [2023-12-02 16:16:01,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219903 to 208212. [2023-12-02 16:16:02,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208212 states, 208115 states have (on average 3.064411503255412) internal successors, (637750), 208211 states have internal predecessors, (637750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:16:03,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208212 states to 208212 states and 637750 transitions. [2023-12-02 16:16:03,359 INFO L78 Accepts]: Start accepts. Automaton has 208212 states and 637750 transitions. Word has length 107 [2023-12-02 16:16:03,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:03,360 INFO L495 AbstractCegarLoop]: Abstraction has 208212 states and 637750 transitions. [2023-12-02 16:16:03,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:16:03,360 INFO L276 IsEmpty]: Start isEmpty. Operand 208212 states and 637750 transitions. [2023-12-02 16:16:03,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:16:03,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:03,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:16:03,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-02 16:16:03,362 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:16:03,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:03,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1785514155, now seen corresponding path program 1 times [2023-12-02 16:16:03,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:03,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050191109] [2023-12-02 16:16:03,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:03,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:16:04,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:04,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050191109] [2023-12-02 16:16:04,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050191109] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:16:04,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286410008] [2023-12-02 16:16:04,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:04,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:04,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:04,312 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:04,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 16:16:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:04,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 16:16:04,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:04,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 16:16:04,613 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-12-02 16:16:04,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-12-02 16:16:04,971 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2023-12-02 16:16:04,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24 [2023-12-02 16:16:05,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:05,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2023-12-02 16:16:05,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-02 16:16:05,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-12-02 16:16:05,197 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:16:05,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-12-02 16:16:05,276 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:16:05,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-12-02 16:16:05,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 16:16:05,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:05,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:16:05,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:05,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:16:05,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:05,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:16:05,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:05,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:16:05,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:16:05,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:16:05,625 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:16:05,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286410008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:16:05,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:16:05,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [15] total 26 [2023-12-02 16:16:05,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430931968] [2023-12-02 16:16:05,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:16:05,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 16:16:05,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:05,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 16:16:05,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=589, Unknown=0, NotChecked=0, Total=702 [2023-12-02 16:16:05,627 INFO L87 Difference]: Start difference. First operand 208212 states and 637750 transitions. Second operand has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:16:09,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:09,816 INFO L93 Difference]: Finished difference Result 258413 states and 791405 transitions. [2023-12-02 16:16:09,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-02 16:16:09,817 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2023-12-02 16:16:09,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:10,806 INFO L225 Difference]: With dead ends: 258413 [2023-12-02 16:16:10,807 INFO L226 Difference]: Without dead ends: 258223 [2023-12-02 16:16:10,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=428, Invalid=1642, Unknown=0, NotChecked=0, Total=2070 [2023-12-02 16:16:10,808 INFO L413 NwaCegarLoop]: 633 mSDtfsCounter, 1951 mSDsluCounter, 3717 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1951 SdHoareTripleChecker+Valid, 4350 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:10,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1951 Valid, 4350 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-02 16:16:11,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258223 states. [2023-12-02 16:16:15,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258223 to 208570. [2023-12-02 16:16:16,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208570 states, 208473 states have (on average 3.064401625150499) internal successors, (638845), 208569 states have internal predecessors, (638845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:16:17,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208570 states to 208570 states and 638845 transitions. [2023-12-02 16:16:17,308 INFO L78 Accepts]: Start accepts. Automaton has 208570 states and 638845 transitions. Word has length 111 [2023-12-02 16:16:17,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:17,308 INFO L495 AbstractCegarLoop]: Abstraction has 208570 states and 638845 transitions. [2023-12-02 16:16:17,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:16:17,309 INFO L276 IsEmpty]: Start isEmpty. Operand 208570 states and 638845 transitions. [2023-12-02 16:16:17,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:16:17,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:17,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:16:17,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 16:16:17,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-12-02 16:16:17,512 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:16:17,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:17,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1063539077, now seen corresponding path program 2 times [2023-12-02 16:16:17,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:17,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367302994] [2023-12-02 16:16:17,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:17,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:18,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:16:18,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:18,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367302994] [2023-12-02 16:16:18,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367302994] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:16:18,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188117033] [2023-12-02 16:16:18,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 16:16:18,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:18,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:18,281 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:18,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 16:16:18,446 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 16:16:18,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:16:18,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 16:16:18,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:18,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 16:16:18,522 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-12-02 16:16:18,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-12-02 16:16:18,849 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:16:18,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2023-12-02 16:16:18,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:18,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2023-12-02 16:16:18,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-02 16:16:18,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-12-02 16:16:19,049 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:16:19,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-12-02 16:16:19,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 16:16:19,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:19,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 35 [2023-12-02 16:16:19,235 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:16:19,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-12-02 16:16:19,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:19,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:16:19,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:19,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:16:19,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:19,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:16:19,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:16:19,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:16:19,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:16:19,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188117033] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:16:19,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:16:19,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [15] total 26 [2023-12-02 16:16:19,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003820252] [2023-12-02 16:16:19,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:16:19,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 16:16:19,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:19,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 16:16:19,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2023-12-02 16:16:19,391 INFO L87 Difference]: Start difference. First operand 208570 states and 638845 transitions. Second operand has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:16:23,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:23,087 INFO L93 Difference]: Finished difference Result 262308 states and 802912 transitions. [2023-12-02 16:16:23,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-02 16:16:23,087 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2023-12-02 16:16:23,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:24,246 INFO L225 Difference]: With dead ends: 262308 [2023-12-02 16:16:24,246 INFO L226 Difference]: Without dead ends: 262166 [2023-12-02 16:16:24,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=435, Invalid=1727, Unknown=0, NotChecked=0, Total=2162 [2023-12-02 16:16:24,247 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 1865 mSDsluCounter, 4669 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1865 SdHoareTripleChecker+Valid, 5339 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:24,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1865 Valid, 5339 Invalid, 2151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-02 16:16:24,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262166 states. [2023-12-02 16:16:29,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262166 to 209313. [2023-12-02 16:16:29,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209313 states, 209216 states have (on average 3.0639626032425817) internal successors, (641030), 209312 states have internal predecessors, (641030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:16:29,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209313 states to 209313 states and 641030 transitions. [2023-12-02 16:16:29,963 INFO L78 Accepts]: Start accepts. Automaton has 209313 states and 641030 transitions. Word has length 111 [2023-12-02 16:16:29,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:29,963 INFO L495 AbstractCegarLoop]: Abstraction has 209313 states and 641030 transitions. [2023-12-02 16:16:29,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:16:29,964 INFO L276 IsEmpty]: Start isEmpty. Operand 209313 states and 641030 transitions. [2023-12-02 16:16:29,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:16:29,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:29,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:16:29,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 16:16:30,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-12-02 16:16:30,166 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:16:30,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:30,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1155250803, now seen corresponding path program 3 times [2023-12-02 16:16:30,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:30,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593239639] [2023-12-02 16:16:30,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:30,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:31,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:16:31,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:31,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593239639] [2023-12-02 16:16:31,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593239639] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:16:31,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635984757] [2023-12-02 16:16:31,342 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 16:16:31,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:31,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:31,343 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:31,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 16:16:31,695 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 16:16:31,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:16:31,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 56 conjunts are in the unsatisfiable core [2023-12-02 16:16:31,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:31,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 16:16:31,802 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-12-02 16:16:31,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-12-02 16:16:32,392 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:16:32,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2023-12-02 16:16:32,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:32,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2023-12-02 16:16:32,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 16:16:32,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-02 16:16:32,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 16:16:32,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-12-02 16:16:33,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:33,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-12-02 16:16:33,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-12-02 16:16:33,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:33,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-12-02 16:16:33,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:33,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-12-02 16:16:33,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:33,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-12-02 16:16:33,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-12-02 16:16:33,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:16:33,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:16:33,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635984757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:16:33,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:16:33,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [15] total 32 [2023-12-02 16:16:33,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224097531] [2023-12-02 16:16:33,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:16:33,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 16:16:33,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:33,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 16:16:33,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=929, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 16:16:33,311 INFO L87 Difference]: Start difference. First operand 209313 states and 641030 transitions. Second operand has 19 states, 18 states have (on average 6.166666666666667) internal successors, (111), 19 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:16:40,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:40,340 INFO L93 Difference]: Finished difference Result 534303 states and 1637510 transitions. [2023-12-02 16:16:40,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-02 16:16:40,341 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.166666666666667) internal successors, (111), 19 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2023-12-02 16:16:40,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:42,211 INFO L225 Difference]: With dead ends: 534303 [2023-12-02 16:16:42,211 INFO L226 Difference]: Without dead ends: 534160 [2023-12-02 16:16:42,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1158 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=827, Invalid=3595, Unknown=0, NotChecked=0, Total=4422 [2023-12-02 16:16:42,213 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 3665 mSDsluCounter, 8251 mSDsCounter, 0 mSdLazyCounter, 3451 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3665 SdHoareTripleChecker+Valid, 9069 SdHoareTripleChecker+Invalid, 3629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 3451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:42,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3665 Valid, 9069 Invalid, 3629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 3451 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-02 16:16:43,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534160 states. [2023-12-02 16:16:51,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534160 to 333995. [2023-12-02 16:16:51,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333995 states, 333898 states have (on average 3.0892518074382) internal successors, (1031495), 333994 states have internal predecessors, (1031495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:16:53,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333995 states to 333995 states and 1031495 transitions. [2023-12-02 16:16:53,385 INFO L78 Accepts]: Start accepts. Automaton has 333995 states and 1031495 transitions. Word has length 111 [2023-12-02 16:16:53,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:53,385 INFO L495 AbstractCegarLoop]: Abstraction has 333995 states and 1031495 transitions. [2023-12-02 16:16:53,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.166666666666667) internal successors, (111), 19 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:16:53,385 INFO L276 IsEmpty]: Start isEmpty. Operand 333995 states and 1031495 transitions. [2023-12-02 16:16:53,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:16:53,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:53,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:16:53,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-02 16:16:53,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-12-02 16:16:53,591 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:16:53,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:53,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1171701637, now seen corresponding path program 4 times [2023-12-02 16:16:53,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:53,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727174690] [2023-12-02 16:16:53,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:53,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:54,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:16:54,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:54,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727174690] [2023-12-02 16:16:54,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727174690] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:16:54,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730881473] [2023-12-02 16:16:54,215 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 16:16:54,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:54,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:54,216 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:54,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-02 16:16:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:54,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 16:16:54,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:54,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 16:16:54,465 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-12-02 16:16:54,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-12-02 16:16:54,763 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2023-12-02 16:16:54,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24 [2023-12-02 16:16:54,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:54,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2023-12-02 16:16:54,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-02 16:16:54,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 16:16:54,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:54,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2023-12-02 16:16:54,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:54,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2023-12-02 16:16:54,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:54,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2023-12-02 16:16:55,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:16:55,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2023-12-02 16:16:55,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2023-12-02 16:16:55,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-12-02 16:16:55,035 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:16:55,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-12-02 16:16:55,046 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:16:55,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-12-02 16:16:55,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:16:55,055 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:16:55,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730881473] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:16:55,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:16:55,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [15] total 23 [2023-12-02 16:16:55,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717116235] [2023-12-02 16:16:55,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:16:55,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 16:16:55,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:55,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 16:16:55,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2023-12-02 16:16:55,057 INFO L87 Difference]: Start difference. First operand 333995 states and 1031495 transitions. Second operand has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:17:00,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:17:00,299 INFO L93 Difference]: Finished difference Result 461086 states and 1432420 transitions. [2023-12-02 16:17:00,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-02 16:17:00,300 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2023-12-02 16:17:00,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:17:02,477 INFO L225 Difference]: With dead ends: 461086 [2023-12-02 16:17:02,477 INFO L226 Difference]: Without dead ends: 459866 [2023-12-02 16:17:02,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=452, Invalid=1618, Unknown=0, NotChecked=0, Total=2070 [2023-12-02 16:17:02,479 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 1933 mSDsluCounter, 5540 mSDsCounter, 0 mSdLazyCounter, 2327 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1933 SdHoareTripleChecker+Valid, 6289 SdHoareTripleChecker+Invalid, 2490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 2327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:17:02,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1933 Valid, 6289 Invalid, 2490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 2327 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-02 16:17:03,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459866 states. [2023-12-02 16:17:11,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459866 to 332285. [2023-12-02 16:17:12,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332285 states, 332188 states have (on average 3.089635989259094) internal successors, (1026340), 332284 states have internal predecessors, (1026340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:17:14,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332285 states to 332285 states and 1026340 transitions. [2023-12-02 16:17:14,068 INFO L78 Accepts]: Start accepts. Automaton has 332285 states and 1026340 transitions. Word has length 111 [2023-12-02 16:17:14,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:17:14,069 INFO L495 AbstractCegarLoop]: Abstraction has 332285 states and 1026340 transitions. [2023-12-02 16:17:14,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:17:14,069 INFO L276 IsEmpty]: Start isEmpty. Operand 332285 states and 1026340 transitions. [2023-12-02 16:17:14,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:17:14,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:17:14,073 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:17:14,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-12-02 16:17:14,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-12-02 16:17:14,274 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:17:14,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:17:14,274 INFO L85 PathProgramCache]: Analyzing trace with hash -896057055, now seen corresponding path program 5 times [2023-12-02 16:17:14,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:17:14,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867983824] [2023-12-02 16:17:14,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:17:14,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:17:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:17:14,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:17:14,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:17:14,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867983824] [2023-12-02 16:17:14,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867983824] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:17:14,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132898428] [2023-12-02 16:17:14,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 16:17:14,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:17:14,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:17:14,990 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:17:14,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-02 16:17:15,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 16:17:15,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:17:15,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 16:17:15,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:17:15,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 16:17:15,751 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-12-02 16:17:15,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-12-02 16:17:16,079 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:17:16,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2023-12-02 16:17:16,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:17:16,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2023-12-02 16:17:16,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 16:17:16,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-02 16:17:16,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2023-12-02 16:17:16,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-12-02 16:17:16,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:17:16,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-12-02 16:17:16,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:17:16,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-12-02 16:17:16,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:17:16,252 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:17:16,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132898428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:17:16,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:17:16,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [15] total 21 [2023-12-02 16:17:16,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685830272] [2023-12-02 16:17:16,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:17:16,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 16:17:16,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:17:16,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 16:17:16,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2023-12-02 16:17:16,254 INFO L87 Difference]: Start difference. First operand 332285 states and 1026340 transitions. Second operand has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:17:21,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:17:21,185 INFO L93 Difference]: Finished difference Result 440982 states and 1371789 transitions. [2023-12-02 16:17:21,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 16:17:21,198 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2023-12-02 16:17:21,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:17:22,883 INFO L225 Difference]: With dead ends: 440982 [2023-12-02 16:17:22,883 INFO L226 Difference]: Without dead ends: 440781 [2023-12-02 16:17:22,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=442, Invalid=1538, Unknown=0, NotChecked=0, Total=1980 [2023-12-02 16:17:22,885 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 2028 mSDsluCounter, 5152 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2028 SdHoareTripleChecker+Valid, 5980 SdHoareTripleChecker+Invalid, 2148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-02 16:17:22,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2028 Valid, 5980 Invalid, 2148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-02 16:17:24,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440781 states. [2023-12-02 16:17:31,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440781 to 327934. [2023-12-02 16:17:31,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327934 states, 327837 states have (on average 3.0907097124485645) internal successors, (1013249), 327933 states have internal predecessors, (1013249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:17:33,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327934 states to 327934 states and 1013249 transitions. [2023-12-02 16:17:33,170 INFO L78 Accepts]: Start accepts. Automaton has 327934 states and 1013249 transitions. Word has length 111 [2023-12-02 16:17:33,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:17:33,170 INFO L495 AbstractCegarLoop]: Abstraction has 327934 states and 1013249 transitions. [2023-12-02 16:17:33,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:17:33,170 INFO L276 IsEmpty]: Start isEmpty. Operand 327934 states and 1013249 transitions. [2023-12-02 16:17:33,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:17:33,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:17:33,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:17:33,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-02 16:17:33,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-12-02 16:17:33,375 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:17:33,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:17:33,375 INFO L85 PathProgramCache]: Analyzing trace with hash -516591710, now seen corresponding path program 1 times [2023-12-02 16:17:33,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:17:33,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023676380] [2023-12-02 16:17:33,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:17:33,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:17:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:17:34,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:17:34,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:17:34,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023676380] [2023-12-02 16:17:34,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023676380] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:17:34,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458740973] [2023-12-02 16:17:34,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:17:34,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:17:34,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:17:34,476 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:17:34,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-02 16:17:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:17:34,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 16:17:34,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:17:34,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 16:17:34,747 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-12-02 16:17:34,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-12-02 16:17:35,082 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:17:35,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2023-12-02 16:17:35,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:17:35,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2023-12-02 16:17:35,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 16:17:35,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-02 16:17:35,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-12-02 16:17:35,209 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:17:35,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-12-02 16:17:35,222 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:17:35,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-12-02 16:17:35,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-12-02 16:17:35,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:17:35,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:17:35,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458740973] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:17:35,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:17:35,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [15] total 21 [2023-12-02 16:17:35,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002071288] [2023-12-02 16:17:35,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:17:35,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 16:17:35,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:17:35,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 16:17:35,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2023-12-02 16:17:35,246 INFO L87 Difference]: Start difference. First operand 327934 states and 1013249 transitions. Second operand has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:17:37,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:17:37,924 INFO L93 Difference]: Finished difference Result 324684 states and 1003306 transitions. [2023-12-02 16:17:37,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 16:17:37,925 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2023-12-02 16:17:37,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:17:39,035 INFO L225 Difference]: With dead ends: 324684 [2023-12-02 16:17:39,035 INFO L226 Difference]: Without dead ends: 318904 [2023-12-02 16:17:39,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=204, Invalid=852, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 16:17:39,036 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 1525 mSDsluCounter, 3204 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 3746 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 16:17:39,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 3746 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 16:17:40,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318904 states. [2023-12-02 16:17:45,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318904 to 307694. [2023-12-02 16:17:46,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307694 states, 307615 states have (on average 3.0970693886839067) internal successors, (952705), 307693 states have internal predecessors, (952705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:17:47,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307694 states to 307694 states and 952705 transitions. [2023-12-02 16:17:47,107 INFO L78 Accepts]: Start accepts. Automaton has 307694 states and 952705 transitions. Word has length 111 [2023-12-02 16:17:47,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:17:47,107 INFO L495 AbstractCegarLoop]: Abstraction has 307694 states and 952705 transitions. [2023-12-02 16:17:47,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:17:47,107 INFO L276 IsEmpty]: Start isEmpty. Operand 307694 states and 952705 transitions. [2023-12-02 16:17:47,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-02 16:17:47,111 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:17:47,111 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:17:47,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-02 16:17:47,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-12-02 16:17:47,312 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:17:47,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:17:47,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1729706741, now seen corresponding path program 1 times [2023-12-02 16:17:47,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:17:47,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194497812] [2023-12-02 16:17:47,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:17:47,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:17:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:17:47,387 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:17:47,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:17:47,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194497812] [2023-12-02 16:17:47,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194497812] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:17:47,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:17:47,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:17:47,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720555007] [2023-12-02 16:17:47,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:17:47,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:17:47,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:17:47,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:17:47,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:17:47,389 INFO L87 Difference]: Start difference. First operand 307694 states and 952705 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:17:48,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:17:48,772 INFO L93 Difference]: Finished difference Result 165517 states and 490421 transitions. [2023-12-02 16:17:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:17:48,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 117 [2023-12-02 16:17:48,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:17:49,321 INFO L225 Difference]: With dead ends: 165517 [2023-12-02 16:17:49,321 INFO L226 Difference]: Without dead ends: 165517 [2023-12-02 16:17:49,322 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 16:17:49,322 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 170 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:17:49,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 446 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:17:49,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165517 states. [2023-12-02 16:17:52,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165517 to 152517. [2023-12-02 16:17:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152517 states, 152492 states have (on average 2.9554140545077776) internal successors, (450677), 152516 states have internal predecessors, (450677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:17:52,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152517 states to 152517 states and 450677 transitions. [2023-12-02 16:17:52,969 INFO L78 Accepts]: Start accepts. Automaton has 152517 states and 450677 transitions. Word has length 117 [2023-12-02 16:17:53,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:17:53,329 INFO L495 AbstractCegarLoop]: Abstraction has 152517 states and 450677 transitions. [2023-12-02 16:17:53,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:17:53,329 INFO L276 IsEmpty]: Start isEmpty. Operand 152517 states and 450677 transitions. [2023-12-02 16:17:53,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 16:17:53,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:17:53,340 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:17:53,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-02 16:17:53,340 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:17:53,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:17:53,340 INFO L85 PathProgramCache]: Analyzing trace with hash 871870078, now seen corresponding path program 1 times [2023-12-02 16:17:53,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:17:53,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931327330] [2023-12-02 16:17:53,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:17:53,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:17:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:17:53,506 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 16:17:53,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:17:53,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931327330] [2023-12-02 16:17:53,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931327330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:17:53,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:17:53,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:17:53,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683180728] [2023-12-02 16:17:53,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:17:53,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:17:53,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:17:53,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:17:53,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:17:53,508 INFO L87 Difference]: Start difference. First operand 152517 states and 450677 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:17:54,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:17:54,949 INFO L93 Difference]: Finished difference Result 226123 states and 673687 transitions. [2023-12-02 16:17:54,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:17:54,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2023-12-02 16:17:54,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:17:55,674 INFO L225 Difference]: With dead ends: 226123 [2023-12-02 16:17:55,674 INFO L226 Difference]: Without dead ends: 226123 [2023-12-02 16:17:55,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:17:55,675 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 236 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:17:55,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 1068 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:17:56,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226123 states. [2023-12-02 16:17:59,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226123 to 158741. [2023-12-02 16:17:59,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158741 states, 158716 states have (on average 2.9545288439728825) internal successors, (468931), 158740 states have internal predecessors, (468931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:00,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158741 states to 158741 states and 468931 transitions. [2023-12-02 16:18:00,426 INFO L78 Accepts]: Start accepts. Automaton has 158741 states and 468931 transitions. Word has length 133 [2023-12-02 16:18:00,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:18:00,426 INFO L495 AbstractCegarLoop]: Abstraction has 158741 states and 468931 transitions. [2023-12-02 16:18:00,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:00,426 INFO L276 IsEmpty]: Start isEmpty. Operand 158741 states and 468931 transitions. [2023-12-02 16:18:00,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 16:18:00,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:18:00,435 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:18:00,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-02 16:18:00,435 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:18:00,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:18:00,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1096232214, now seen corresponding path program 1 times [2023-12-02 16:18:00,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:18:00,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808761051] [2023-12-02 16:18:00,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:18:00,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:18:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:18:00,557 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 16:18:00,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:18:00,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808761051] [2023-12-02 16:18:00,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808761051] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:18:00,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134269477] [2023-12-02 16:18:00,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:18:00,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:18:00,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:18:00,559 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:18:00,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-02 16:18:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:18:00,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 16:18:00,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:18:00,901 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:18:00,901 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:18:00,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134269477] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:18:00,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:18:00,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 10 [2023-12-02 16:18:00,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029125894] [2023-12-02 16:18:00,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:18:00,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 16:18:00,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:18:00,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 16:18:00,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-02 16:18:00,903 INFO L87 Difference]: Start difference. First operand 158741 states and 468931 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:01,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:18:01,712 INFO L93 Difference]: Finished difference Result 162357 states and 478845 transitions. [2023-12-02 16:18:01,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 16:18:01,713 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2023-12-02 16:18:01,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:18:02,626 INFO L225 Difference]: With dead ends: 162357 [2023-12-02 16:18:02,626 INFO L226 Difference]: Without dead ends: 162357 [2023-12-02 16:18:02,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 131 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-12-02 16:18:02,627 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 387 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:18:02,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 1202 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:18:02,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162357 states. [2023-12-02 16:18:05,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162357 to 151549. [2023-12-02 16:18:05,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151549 states, 151524 states have (on average 2.949710936881286) internal successors, (446952), 151548 states have internal predecessors, (446952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:06,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151549 states to 151549 states and 446952 transitions. [2023-12-02 16:18:06,211 INFO L78 Accepts]: Start accepts. Automaton has 151549 states and 446952 transitions. Word has length 133 [2023-12-02 16:18:06,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:18:06,212 INFO L495 AbstractCegarLoop]: Abstraction has 151549 states and 446952 transitions. [2023-12-02 16:18:06,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:06,212 INFO L276 IsEmpty]: Start isEmpty. Operand 151549 states and 446952 transitions. [2023-12-02 16:18:06,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-02 16:18:06,219 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:18:06,219 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:18:06,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-12-02 16:18:06,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2023-12-02 16:18:06,420 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:18:06,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:18:06,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1440166745, now seen corresponding path program 1 times [2023-12-02 16:18:06,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:18:06,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118900406] [2023-12-02 16:18:06,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:18:06,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:18:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:18:06,686 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 16:18:06,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:18:06,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118900406] [2023-12-02 16:18:06,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118900406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:18:06,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:18:06,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:18:06,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277870975] [2023-12-02 16:18:06,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:18:06,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:18:06,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:18:06,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:18:06,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:18:06,688 INFO L87 Difference]: Start difference. First operand 151549 states and 446952 transitions. Second operand has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:08,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:18:08,235 INFO L93 Difference]: Finished difference Result 219166 states and 650812 transitions. [2023-12-02 16:18:08,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:18:08,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2023-12-02 16:18:08,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:18:08,874 INFO L225 Difference]: With dead ends: 219166 [2023-12-02 16:18:08,874 INFO L226 Difference]: Without dead ends: 219166 [2023-12-02 16:18:08,874 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 16:18:08,875 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 484 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:18:08,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1235 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 16:18:09,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219166 states. [2023-12-02 16:18:13,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219166 to 165089. [2023-12-02 16:18:13,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165089 states, 165064 states have (on average 2.952897058110793) internal successors, (487417), 165088 states have internal predecessors, (487417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:13,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165089 states to 165089 states and 487417 transitions. [2023-12-02 16:18:13,860 INFO L78 Accepts]: Start accepts. Automaton has 165089 states and 487417 transitions. Word has length 134 [2023-12-02 16:18:13,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:18:13,861 INFO L495 AbstractCegarLoop]: Abstraction has 165089 states and 487417 transitions. [2023-12-02 16:18:13,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:13,861 INFO L276 IsEmpty]: Start isEmpty. Operand 165089 states and 487417 transitions. [2023-12-02 16:18:13,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-02 16:18:13,882 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:18:13,882 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:18:13,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-02 16:18:13,882 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:18:13,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:18:13,882 INFO L85 PathProgramCache]: Analyzing trace with hash 911031214, now seen corresponding path program 1 times [2023-12-02 16:18:13,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:18:13,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248834174] [2023-12-02 16:18:13,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:18:13,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:18:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:18:13,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:18:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:18:13,994 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:18:13,994 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:18:13,994 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr1ASSERT_VIOLATIONDATA_RACE (21 of 22 remaining) [2023-12-02 16:18:13,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2023-12-02 16:18:13,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2023-12-02 16:18:13,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2023-12-02 16:18:13,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2023-12-02 16:18:13,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2023-12-02 16:18:13,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2023-12-02 16:18:13,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2023-12-02 16:18:13,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2023-12-02 16:18:13,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2023-12-02 16:18:13,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 22 remaining) [2023-12-02 16:18:13,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2023-12-02 16:18:13,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2023-12-02 16:18:13,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2023-12-02 16:18:13,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2023-12-02 16:18:13,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2023-12-02 16:18:13,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2023-12-02 16:18:13,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2023-12-02 16:18:13,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2023-12-02 16:18:13,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2023-12-02 16:18:13,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2023-12-02 16:18:13,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2023-12-02 16:18:13,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-02 16:18:14,000 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:18:14,006 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-12-02 16:18:14,006 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:18:14,099 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-12-02 16:18:14,101 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc11 [2023-12-02 16:18:14,101 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-12-02 16:18:14,101 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc12 [2023-12-02 16:18:14,102 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret16 could not be translated [2023-12-02 16:18:14,103 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-12-02 16:18:14,104 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-12-02 16:18:14,104 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated [2023-12-02 16:18:14,104 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-12-02 16:18:14,104 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre21 could not be translated [2023-12-02 16:18:14,105 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem22 [2023-12-02 16:18:14,105 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre21 could not be translated [2023-12-02 16:18:14,105 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem22 [2023-12-02 16:18:14,106 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre21 could not be translated [2023-12-02 16:18:14,106 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem22 [2023-12-02 16:18:14,107 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-12-02 16:18:14,107 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-12-02 16:18:14,108 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-12-02 16:18:14,108 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-12-02 16:18:14,109 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-12-02 16:18:14,109 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret16 could not be translated [2023-12-02 16:18:14,109 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-12-02 16:18:14,110 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-12-02 16:18:14,110 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-12-02 16:18:14,110 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-12-02 16:18:14,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-12-02 16:18:14,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-12-02 16:18:14,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-12-02 16:18:14,112 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated [2023-12-02 16:18:14,112 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-12-02 16:18:14,112 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-12-02 16:18:14,112 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-12-02 16:18:14,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-12-02 16:18:14,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem22 [2023-12-02 16:18:14,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre21 could not be translated [2023-12-02 16:18:14,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-12-02 16:18:14,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-12-02 16:18:14,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre21 could not be translated [2023-12-02 16:18:14,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-12-02 16:18:14,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-12-02 16:18:14,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem22 [2023-12-02 16:18:14,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre21 could not be translated [2023-12-02 16:18:14,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-12-02 16:18:14,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem22 [2023-12-02 16:18:14,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-12-02 16:18:14,116 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-12-02 16:18:14,116 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-12-02 16:18:14,116 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-12-02 16:18:14,116 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-12-02 16:18:14,117 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-12-02 16:18:14,117 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-12-02 16:18:14,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:18:14 BasicIcfg [2023-12-02 16:18:14,128 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:18:14,129 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:18:14,129 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:18:14,130 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:18:14,130 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:12:21" (3/4) ... [2023-12-02 16:18:14,133 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 16:18:14,135 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:18:14,135 INFO L158 Benchmark]: Toolchain (without parser) took 353806.18ms. Allocated memory was 172.0MB in the beginning and 16.1GB in the end (delta: 15.9GB). Free memory was 120.6MB in the beginning and 12.3GB in the end (delta: -12.2GB). Peak memory consumption was 3.8GB. Max. memory is 16.1GB. [2023-12-02 16:18:14,136 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 172.0MB. Free memory was 140.0MB in the beginning and 139.8MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:18:14,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.60ms. Allocated memory is still 172.0MB. Free memory was 120.0MB in the beginning and 89.7MB in the end (delta: 30.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-12-02 16:18:14,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.56ms. Allocated memory is still 172.0MB. Free memory was 89.7MB in the beginning and 87.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:18:14,137 INFO L158 Benchmark]: Boogie Preprocessor took 46.42ms. Allocated memory is still 172.0MB. Free memory was 87.0MB in the beginning and 84.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:18:14,137 INFO L158 Benchmark]: RCFGBuilder took 668.83ms. Allocated memory was 172.0MB in the beginning and 213.9MB in the end (delta: 41.9MB). Free memory was 84.9MB in the beginning and 173.9MB in the end (delta: -89.0MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2023-12-02 16:18:14,137 INFO L158 Benchmark]: TraceAbstraction took 352315.49ms. Allocated memory was 213.9MB in the beginning and 16.1GB in the end (delta: 15.9GB). Free memory was 172.9MB in the beginning and 12.3GB in the end (delta: -12.1GB). Peak memory consumption was 3.8GB. Max. memory is 16.1GB. [2023-12-02 16:18:14,138 INFO L158 Benchmark]: Witness Printer took 5.63ms. Allocated memory is still 16.1GB. Free memory is still 12.3GB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:18:14,139 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 172.0MB. Free memory was 140.0MB in the beginning and 139.8MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.60ms. Allocated memory is still 172.0MB. Free memory was 120.0MB in the beginning and 89.7MB in the end (delta: 30.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.56ms. Allocated memory is still 172.0MB. Free memory was 89.7MB in the beginning and 87.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.42ms. Allocated memory is still 172.0MB. Free memory was 87.0MB in the beginning and 84.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 668.83ms. Allocated memory was 172.0MB in the beginning and 213.9MB in the end (delta: 41.9MB). Free memory was 84.9MB in the beginning and 173.9MB in the end (delta: -89.0MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * TraceAbstraction took 352315.49ms. Allocated memory was 213.9MB in the beginning and 16.1GB in the end (delta: 15.9GB). Free memory was 172.9MB in the beginning and 12.3GB in the end (delta: -12.1GB). Peak memory consumption was 3.8GB. Max. memory is 16.1GB. * Witness Printer took 5.63ms. Allocated memory is still 16.1GB. Free memory is still 12.3GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc11 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc12 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem22 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem22 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem22 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem22 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem22 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem22 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1048]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: overapproximation of bitwiseAnd at line 1063. Possible FailurePath: [L1043] 0 int threads_mask = -1; VAL [threads_mask=-1] [L1044] 0 pthread_mutex_t threads_mask_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [threads_mask=-1, threads_mask_mutex={1:0}] [L1045] 0 int *datas; VAL [datas={0:0}, threads_mask=-1, threads_mask_mutex={1:0}] [L1055] 0 int threads_total = __VERIFIER_nondet_int(); VAL [datas={0:0}, threads_mask=-1, threads_mask_mutex={1:0}, threads_total=31] [L1056] CALL 0 assume_abort_if_not(threads_total >= 0) [L1040] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, datas={0:0}, threads_mask=-1, threads_mask_mutex={1:0}] [L1056] RET 0 assume_abort_if_not(threads_total >= 0) [L1057] CALL 0 assume_abort_if_not(threads_total < 32) [L1040] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, datas={0:0}, threads_mask=-1, threads_mask_mutex={1:0}] [L1057] RET 0 assume_abort_if_not(threads_total < 32) [L1058] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [datas={0:0}, threads_mask=-1, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1058] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [datas={0:0}, threads_mask=-1, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1059] 0 datas = malloc(threads_total * sizeof(int)) VAL [datas={5:0}, threads_mask=-1, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1060] 0 int i = 0; VAL [datas={5:0}, i=0, threads_mask=-1, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1060] COND TRUE 0 i < threads_total VAL [datas={5:0}, i=0, threads_mask=-1, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1062] EXPR 0 ffs(threads_mask) VAL [datas={5:0}, i=0, threads_mask=-1, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1062] 0 int j = ffs(threads_mask) - 1; VAL [datas={5:0}, i=0, j=0, threads_mask=-1, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1063] 0 threads_mask &= ~(1 << j) VAL [datas={5:0}, i=0, j=0, threads_mask=-1, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1063] EXPR 0 1 << j VAL [datas={5:0}, i=0, j=0, threads_mask=-1, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1063] 0 threads_mask &= ~(1 << j) VAL [datas={5:0}, i=0, j=0, threads_mask=-2, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1065] EXPR 0 \read(*tids) VAL [datas={5:0}, i=0, j=0, threads_mask=-2, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1065] EXPR 0 tids[i] VAL [datas={5:0}, i=0, j=0, threads_mask=-2, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1065] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, (void*)j) VAL [arg={0:0}, datas={5:0}, i=0, j=0, threads_mask=-2, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1047] 1 int j = (int)arg; VAL [arg={0:0}, arg={0:0}, datas={5:0}, j=0, threads_mask=-2, threads_mask_mutex={1:0}] [L1048] EXPR 1 datas[j] VAL [arg={0:0}, arg={0:0}, datas={5:0}, j=0, threads_mask=-2, threads_mask_mutex={1:0}] [L1048] 1 datas[j] = __VERIFIER_nondet_int() VAL [arg={0:0}, arg={0:0}, datas={5:0}, j=0, threads_mask=-2, threads_mask_mutex={1:0}] [L1060] 0 i++ VAL [arg={0:0}, arg={0:0}, datas={5:0}, i=1, j=0, j=0, threads_mask=-2, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1060] COND TRUE 0 i < threads_total VAL [arg={0:0}, arg={0:0}, datas={5:0}, i=1, j=0, j=0, threads_mask=-2, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1062] EXPR 0 ffs(threads_mask) VAL [arg={0:0}, arg={0:0}, datas={5:0}, i=1, j=0, j=0, threads_mask=-2, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1062] 0 int j = ffs(threads_mask) - 1; VAL [arg={0:0}, arg={0:0}, datas={5:0}, i=1, j=0, j=0, threads_mask=-2, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1048] 1 datas[j] = __VERIFIER_nondet_int() VAL [arg={0:0}, arg={0:0}, datas={5:0}, j=0, threads_mask=-2, threads_mask_mutex={1:0}] [L1063] 0 threads_mask &= ~(1 << j) VAL [arg={0:0}, arg={0:0}, datas={5:0}, i=1, j=0, j=0, threads_mask=-2, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1063] EXPR 0 1 << j VAL [arg={0:0}, arg={0:0}, datas={5:0}, i=1, j=0, j=0, threads_mask=-2, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1063] 0 threads_mask &= ~(1 << j) VAL [arg={0:0}, arg={0:0}, datas={5:0}, i=1, j=0, j=0, threads_mask=-2, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1065] EXPR 0 \read(*tids) VAL [arg={0:0}, arg={0:0}, datas={5:0}, i=1, j=0, j=0, threads_mask=-2, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1065] EXPR 0 tids[i] VAL [arg={0:0}, arg={0:0}, datas={5:0}, i=1, j=0, j=0, threads_mask=-2, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1065] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, (void*)j) VAL [arg={0:0}, arg={0:0}, datas={5:0}, i=1, j=0, j=0, threads_mask=-2, threads_mask_mutex={1:0}, threads_total=31, tids={7:0}] [L1047] 2 int j = (int)arg; VAL [arg={0:0}, arg={0:0}, datas={5:0}, j=0, threads_mask=-2, threads_mask_mutex={1:0}] [L1048] EXPR 2 datas[j] VAL [arg={0:0}, arg={0:0}, datas={5:0}, j=0, threads_mask=-2, threads_mask_mutex={1:0}] [L1048] 2 datas[j] = __VERIFIER_nondet_int() VAL [arg={0:0}, arg={0:0}, datas={5:0}, j=0, threads_mask=-2, threads_mask_mutex={1:0}] - UnprovableResult [Line: 1059]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1062]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1068]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1063]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1070]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1071]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1068]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1063]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1065]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1065]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1048]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1050]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1050]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 235 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 63.8s, OverallIterations: 28, TraceHistogramMax: 2, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 27.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 15953 SdHoareTripleChecker+Valid, 13.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15953 mSDsluCounter, 37065 SdHoareTripleChecker+Invalid, 11.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 11682 IncrementalHoareTripleChecker+Unchecked, 30263 mSDsCounter, 1062 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14560 IncrementalHoareTripleChecker+Invalid, 27311 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1062 mSolverCounterUnsat, 6802 mSDtfsCounter, 14560 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1956 GetRequests, 1393 SyntacticMatches, 26 SemanticMatches, 537 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 9266 ImplicationChecksByTransitivity, 19.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4672occurred in iteration=4, InterpolantAutomatonStates: 354, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 27 MinimizatonAttempts, 15762 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 28.0s InterpolantComputationTime, 3672 NumberOfCodeBlocks, 3672 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 3851 ConstructedInterpolants, 128 QuantifiedInterpolants, 44953 SizeOfPredicates, 114 NumberOfNonLiveVariables, 3021 ConjunctsInSsa, 407 ConjunctsInUnsatCore, 40 InterpolantComputations, 24 PerfectInterpolantSequences, 110/126 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 282 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 288.2s, OverallIterations: 26, TraceHistogramMax: 2, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.3s, AutomataDifference: 88.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18041 SdHoareTripleChecker+Valid, 13.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18041 mSDsluCounter, 50869 SdHoareTripleChecker+Invalid, 11.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39808 mSDsCounter, 1044 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15823 IncrementalHoareTripleChecker+Invalid, 16867 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1044 mSolverCounterUnsat, 11061 mSDtfsCounter, 15823 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1153 GetRequests, 796 SyntacticMatches, 2 SemanticMatches, 355 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3223 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=333995occurred in iteration=18, InterpolantAutomatonStates: 272, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 176.3s AutomataMinimizationTime, 25 MinimizatonAttempts, 1003857 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 13.7s InterpolantComputationTime, 3187 NumberOfCodeBlocks, 3187 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 3012 ConstructedInterpolants, 0 QuantifiedInterpolants, 28759 SizeOfPredicates, 57 NumberOfNonLiveVariables, 2157 ConjunctsInSsa, 238 ConjunctsInUnsatCore, 32 InterpolantComputations, 25 PerfectInterpolantSequences, 144/151 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 16:18:14,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/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_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-bitmask.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/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 3787427d85789c6543b359d801a5f9325d8405a4b765c9b89d348aba34fa2c55 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:18:17,202 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:18:17,278 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf [2023-12-02 16:18:17,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:18:17,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:18:17,309 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:18:17,310 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:18:17,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:18:17,311 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:18:17,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:18:17,312 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:18:17,313 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:18:17,313 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:18:17,314 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:18:17,314 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:18:17,315 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:18:17,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:18:17,316 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:18:17,317 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:18:17,317 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:18:17,318 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:18:17,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:18:17,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:18:17,321 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:18:17,322 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 16:18:17,322 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 16:18:17,322 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 16:18:17,322 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 16:18:17,323 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:18:17,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:18:17,324 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:18:17,324 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:18:17,325 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 16:18:17,325 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:18:17,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:18:17,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:18:17,326 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:18:17,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:18:17,326 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 16:18:17,326 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 16:18:17,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:18:17,327 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:18:17,327 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:18:17,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:18:17,327 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_63656c9f-7928-4dab-b0f6-8269adc12092/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3787427d85789c6543b359d801a5f9325d8405a4b765c9b89d348aba34fa2c55 [2023-12-02 16:18:17,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:18:17,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:18:17,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:18:17,687 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:18:17,687 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:18:17,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-bitmask.i [2023-12-02 16:18:20,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:18:20,828 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:18:20,828 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/sv-benchmarks/c/pthread-race-challenges/per-thread-index-bitmask.i [2023-12-02 16:18:20,847 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/data/132777639/c17e2101f5664ec6b0c4827fa95663e7/FLAG38446df04 [2023-12-02 16:18:20,861 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/data/132777639/c17e2101f5664ec6b0c4827fa95663e7 [2023-12-02 16:18:20,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:18:20,865 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:18:20,867 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:18:20,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:18:20,872 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:18:20,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:18:20" (1/1) ... [2023-12-02 16:18:20,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a0d79f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:20, skipping insertion in model container [2023-12-02 16:18:20,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:18:20" (1/1) ... [2023-12-02 16:18:20,943 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:18:21,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:18:21,418 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:18:21,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:18:21,530 WARN L675 CHandler]: The function ffs is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:18:21,537 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:18:21,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:21 WrapperNode [2023-12-02 16:18:21,538 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:18:21,538 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:18:21,538 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:18:21,538 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:18:21,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:21" (1/1) ... [2023-12-02 16:18:21,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:21" (1/1) ... [2023-12-02 16:18:21,594 INFO L138 Inliner]: procedures = 282, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 117 [2023-12-02 16:18:21,595 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:18:21,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:18:21,596 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:18:21,596 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:18:21,605 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:21" (1/1) ... [2023-12-02 16:18:21,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:21" (1/1) ... [2023-12-02 16:18:21,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:21" (1/1) ... [2023-12-02 16:18:21,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:21" (1/1) ... [2023-12-02 16:18:21,626 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:21" (1/1) ... [2023-12-02 16:18:21,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:21" (1/1) ... [2023-12-02 16:18:21,634 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:21" (1/1) ... [2023-12-02 16:18:21,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:21" (1/1) ... [2023-12-02 16:18:21,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:18:21,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:18:21,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:18:21,644 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:18:21,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:21" (1/1) ... [2023-12-02 16:18:21,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:18:21,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:18:21,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:18:21,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:18:21,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 16:18:21,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 16:18:21,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 16:18:21,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 16:18:21,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 16:18:21,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 16:18:21,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-12-02 16:18:21,721 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 16:18:21,721 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 16:18:21,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 16:18:21,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:18:21,722 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2023-12-02 16:18:21,722 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-12-02 16:18:21,722 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-12-02 16:18:21,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:18:21,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:18:21,724 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 16:18:21,881 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:18:21,884 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:18:22,251 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:18:22,272 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:18:22,272 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 16:18:22,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:18:22 BoogieIcfgContainer [2023-12-02 16:18:22,274 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:18:22,276 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:18:22,277 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:18:22,280 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:18:22,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:18:20" (1/3) ... [2023-12-02 16:18:22,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6425cae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:18:22, skipping insertion in model container [2023-12-02 16:18:22,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:21" (2/3) ... [2023-12-02 16:18:22,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6425cae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:18:22, skipping insertion in model container [2023-12-02 16:18:22,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:18:22" (3/3) ... [2023-12-02 16:18:22,283 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-index-bitmask.i [2023-12-02 16:18:22,291 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 16:18:22,301 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:18:22,301 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-12-02 16:18:22,301 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 16:18:22,385 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-12-02 16:18:22,417 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 160 places, 162 transitions, 331 flow [2023-12-02 16:18:22,516 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2575 states, 2511 states have (on average 1.9908403026682597) internal successors, (4999), 2574 states have internal predecessors, (4999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:22,535 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:18:22,541 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;@ac673aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:18:22,541 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-12-02 16:18:22,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 2575 states, 2511 states have (on average 1.9908403026682597) internal successors, (4999), 2574 states have internal predecessors, (4999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:22,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 16:18:22,558 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:18:22,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:18:22,559 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:18:22,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:18:22,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1117381860, now seen corresponding path program 1 times [2023-12-02 16:18:22,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:18:22,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793137311] [2023-12-02 16:18:22,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:18:22,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:22,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:18:22,581 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:18:22,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 16:18:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:18:22,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:18:22,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:18:22,761 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 16:18:22,762 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:18:22,762 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:18:22,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793137311] [2023-12-02 16:18:22,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793137311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:18:22,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:18:22,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:18:22,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752791843] [2023-12-02 16:18:22,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:18:22,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:18:22,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:18:22,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:18:22,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:18:22,805 INFO L87 Difference]: Start difference. First operand has 2575 states, 2511 states have (on average 1.9908403026682597) internal successors, (4999), 2574 states have internal predecessors, (4999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:22,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:18:22,901 INFO L93 Difference]: Finished difference Result 2574 states and 4930 transitions. [2023-12-02 16:18:22,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:18:22,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2023-12-02 16:18:22,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:18:22,935 INFO L225 Difference]: With dead ends: 2574 [2023-12-02 16:18:22,935 INFO L226 Difference]: Without dead ends: 2523 [2023-12-02 16:18:22,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 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 16:18:22,940 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 2 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:18:22,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 288 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:18:22,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2023-12-02 16:18:23,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2523. [2023-12-02 16:18:23,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2462 states have (on average 1.9622258326563768) internal successors, (4831), 2522 states have internal predecessors, (4831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:23,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4831 transitions. [2023-12-02 16:18:23,087 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4831 transitions. Word has length 38 [2023-12-02 16:18:23,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:18:23,087 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 4831 transitions. [2023-12-02 16:18:23,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:23,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4831 transitions. [2023-12-02 16:18:23,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 16:18:23,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:18:23,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:18:23,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:18:23,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:23,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:18:23,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:18:23,295 INFO L85 PathProgramCache]: Analyzing trace with hash -2114722650, now seen corresponding path program 1 times [2023-12-02 16:18:23,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:18:23,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [724211326] [2023-12-02 16:18:23,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:18:23,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:23,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:18:23,305 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:18:23,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 16:18:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:18:23,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:18:23,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:18:23,426 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 16:18:23,426 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:18:23,427 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:18:23,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [724211326] [2023-12-02 16:18:23,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [724211326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:18:23,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:18:23,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:18:23,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109968483] [2023-12-02 16:18:23,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:18:23,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:18:23,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:18:23,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:18:23,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:18:23,430 INFO L87 Difference]: Start difference. First operand 2523 states and 4831 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:23,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:18:23,517 INFO L93 Difference]: Finished difference Result 2555 states and 4884 transitions. [2023-12-02 16:18:23,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:18:23,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-12-02 16:18:23,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:18:23,535 INFO L225 Difference]: With dead ends: 2555 [2023-12-02 16:18:23,535 INFO L226 Difference]: Without dead ends: 2555 [2023-12-02 16:18:23,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 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 16:18:23,537 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 99 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:18:23,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 363 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:18:23,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2555 states. [2023-12-02 16:18:23,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2555 to 2448. [2023-12-02 16:18:23,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2401 states have (on average 1.9491878384006665) internal successors, (4680), 2447 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:23,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 4680 transitions. [2023-12-02 16:18:23,603 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 4680 transitions. Word has length 46 [2023-12-02 16:18:23,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:18:23,604 INFO L495 AbstractCegarLoop]: Abstraction has 2448 states and 4680 transitions. [2023-12-02 16:18:23,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:23,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 4680 transitions. [2023-12-02 16:18:23,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 16:18:23,606 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:18:23,606 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] [2023-12-02 16:18:23,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 16:18:23,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:23,811 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:18:23,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:18:23,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1979668670, now seen corresponding path program 1 times [2023-12-02 16:18:23,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:18:23,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677196389] [2023-12-02 16:18:23,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:18:23,813 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:23,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:18:23,814 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:18:23,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-02 16:18:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:18:23,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 16:18:23,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:18:24,330 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 16:18:24,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:18:24,330 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:18:24,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677196389] [2023-12-02 16:18:24,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677196389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:18:24,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:18:24,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 16:18:24,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864003755] [2023-12-02 16:18:24,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:18:24,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 16:18:24,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:18:24,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 16:18:24,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-02 16:18:24,333 INFO L87 Difference]: Start difference. First operand 2448 states and 4680 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:24,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:18:24,761 INFO L93 Difference]: Finished difference Result 2462 states and 4693 transitions. [2023-12-02 16:18:24,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 16:18:24,761 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2023-12-02 16:18:24,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:18:24,777 INFO L225 Difference]: With dead ends: 2462 [2023-12-02 16:18:24,777 INFO L226 Difference]: Without dead ends: 2462 [2023-12-02 16:18:24,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2023-12-02 16:18:24,779 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 450 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:18:24,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 996 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 16:18:24,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2462 states. [2023-12-02 16:18:24,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2462 to 2449. [2023-12-02 16:18:24,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2449 states, 2402 states have (on average 1.9487926727726894) internal successors, (4681), 2448 states have internal predecessors, (4681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:24,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 4681 transitions. [2023-12-02 16:18:24,859 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 4681 transitions. Word has length 51 [2023-12-02 16:18:24,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:18:24,859 INFO L495 AbstractCegarLoop]: Abstraction has 2449 states and 4681 transitions. [2023-12-02 16:18:24,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:24,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 4681 transitions. [2023-12-02 16:18:24,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 16:18:24,861 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:18:24,861 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] [2023-12-02 16:18:24,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-02 16:18:25,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:25,063 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:18:25,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:18:25,063 INFO L85 PathProgramCache]: Analyzing trace with hash 460206983, now seen corresponding path program 1 times [2023-12-02 16:18:25,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:18:25,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276630125] [2023-12-02 16:18:25,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:18:25,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:25,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:18:25,065 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:18:25,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-02 16:18:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:18:25,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 16:18:25,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:18:25,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 16:18:25,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2023-12-02 16:18:25,230 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:18:25,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2023-12-02 16:18:25,275 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:18:25,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2023-12-02 16:18:25,326 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 16:18:25,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:18:25,327 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:18:25,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276630125] [2023-12-02 16:18:25,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276630125] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:18:25,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:18:25,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:18:25,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277943930] [2023-12-02 16:18:25,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:18:25,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:18:25,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:18:25,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:18:25,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:18:25,329 INFO L87 Difference]: Start difference. First operand 2449 states and 4681 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:25,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:18:25,763 INFO L93 Difference]: Finished difference Result 3114 states and 5917 transitions. [2023-12-02 16:18:25,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:18:25,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2023-12-02 16:18:25,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:18:25,785 INFO L225 Difference]: With dead ends: 3114 [2023-12-02 16:18:25,785 INFO L226 Difference]: Without dead ends: 3114 [2023-12-02 16:18:25,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:18:25,786 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 208 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:18:25,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 395 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 16:18:25,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3114 states. [2023-12-02 16:18:25,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3114 to 2681. [2023-12-02 16:18:25,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2641 states have (on average 1.9447179098826202) internal successors, (5136), 2680 states have internal predecessors, (5136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:25,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 5136 transitions. [2023-12-02 16:18:25,873 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 5136 transitions. Word has length 52 [2023-12-02 16:18:25,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:18:25,873 INFO L495 AbstractCegarLoop]: Abstraction has 2681 states and 5136 transitions. [2023-12-02 16:18:25,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:25,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 5136 transitions. [2023-12-02 16:18:25,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 16:18:25,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:18:25,875 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] [2023-12-02 16:18:25,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-02 16:18:26,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:26,076 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:18:26,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:18:26,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1625465520, now seen corresponding path program 1 times [2023-12-02 16:18:26,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:18:26,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269889906] [2023-12-02 16:18:26,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:18:26,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:26,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:18:26,078 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:18:26,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-02 16:18:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:18:26,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:18:26,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:18:26,182 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 16:18:26,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:18:26,183 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:18:26,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269889906] [2023-12-02 16:18:26,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269889906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:18:26,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:18:26,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:18:26,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929786786] [2023-12-02 16:18:26,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:18:26,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:18:26,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:18:26,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:18:26,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:18:26,185 INFO L87 Difference]: Start difference. First operand 2681 states and 5136 transitions. Second operand has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:26,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:18:26,247 INFO L93 Difference]: Finished difference Result 2682 states and 5137 transitions. [2023-12-02 16:18:26,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:18:26,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-02 16:18:26,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:18:26,269 INFO L225 Difference]: With dead ends: 2682 [2023-12-02 16:18:26,269 INFO L226 Difference]: Without dead ends: 2682 [2023-12-02 16:18:26,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 16:18:26,270 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 30 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:18:26,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 302 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:18:26,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2023-12-02 16:18:26,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2670. [2023-12-02 16:18:26,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2670 states, 2634 states have (on average 1.941533788914199) internal successors, (5114), 2669 states have internal predecessors, (5114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:26,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 5114 transitions. [2023-12-02 16:18:26,342 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 5114 transitions. Word has length 55 [2023-12-02 16:18:26,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:18:26,342 INFO L495 AbstractCegarLoop]: Abstraction has 2670 states and 5114 transitions. [2023-12-02 16:18:26,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:26,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 5114 transitions. [2023-12-02 16:18:26,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 16:18:26,344 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:18:26,344 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] [2023-12-02 16:18:26,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-02 16:18:26,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:26,548 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:18:26,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:18:26,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1959451456, now seen corresponding path program 1 times [2023-12-02 16:18:26,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:18:26,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [507770278] [2023-12-02 16:18:26,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:18:26,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:26,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:18:26,550 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:18:26,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-02 16:18:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:18:26,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:18:26,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:18:26,631 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 16:18:26,631 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:18:26,631 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:18:26,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [507770278] [2023-12-02 16:18:26,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [507770278] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:18:26,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:18:26,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:18:26,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387996906] [2023-12-02 16:18:26,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:18:26,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:18:26,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:18:26,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:18:26,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:18:26,633 INFO L87 Difference]: Start difference. First operand 2670 states and 5114 transitions. Second operand has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:26,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:18:26,672 INFO L93 Difference]: Finished difference Result 2578 states and 4923 transitions. [2023-12-02 16:18:26,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:18:26,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2023-12-02 16:18:26,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:18:26,683 INFO L225 Difference]: With dead ends: 2578 [2023-12-02 16:18:26,683 INFO L226 Difference]: Without dead ends: 2488 [2023-12-02 16:18:26,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 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 16:18:26,684 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 109 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:18:26,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 306 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:18:26,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2023-12-02 16:18:26,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2488. [2023-12-02 16:18:26,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2461 states have (on average 1.934173100365705) internal successors, (4760), 2487 states have internal predecessors, (4760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:26,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 4760 transitions. [2023-12-02 16:18:26,747 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 4760 transitions. Word has length 56 [2023-12-02 16:18:26,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:18:26,748 INFO L495 AbstractCegarLoop]: Abstraction has 2488 states and 4760 transitions. [2023-12-02 16:18:26,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:26,748 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 4760 transitions. [2023-12-02 16:18:26,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 16:18:26,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:18:26,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:18:26,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-02 16:18:26,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:26,959 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:18:26,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:18:26,960 INFO L85 PathProgramCache]: Analyzing trace with hash -916230937, now seen corresponding path program 1 times [2023-12-02 16:18:26,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:18:26,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659350358] [2023-12-02 16:18:26,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:18:26,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:26,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:18:26,961 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:18:26,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-02 16:18:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:18:27,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 16:18:27,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:18:27,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2023-12-02 16:18:27,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2023-12-02 16:18:27,178 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:18:27,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 52 [2023-12-02 16:18:27,246 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:18:27,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 71 [2023-12-02 16:18:27,321 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 16:18:27,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:18:27,321 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:18:27,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659350358] [2023-12-02 16:18:27,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659350358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:18:27,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:18:27,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:18:27,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498120846] [2023-12-02 16:18:27,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:18:27,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:18:27,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:18:27,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:18:27,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:18:27,324 INFO L87 Difference]: Start difference. First operand 2488 states and 4760 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:28,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:18:28,403 INFO L93 Difference]: Finished difference Result 2696 states and 5156 transitions. [2023-12-02 16:18:28,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:18:28,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2023-12-02 16:18:28,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:18:28,416 INFO L225 Difference]: With dead ends: 2696 [2023-12-02 16:18:28,417 INFO L226 Difference]: Without dead ends: 2696 [2023-12-02 16:18:28,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:18:28,418 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 228 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:18:28,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 720 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-02 16:18:28,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2023-12-02 16:18:28,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2602. [2023-12-02 16:18:28,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2602 states, 2575 states have (on average 1.9316504854368932) internal successors, (4974), 2601 states have internal predecessors, (4974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:28,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2602 states to 2602 states and 4974 transitions. [2023-12-02 16:18:28,476 INFO L78 Accepts]: Start accepts. Automaton has 2602 states and 4974 transitions. Word has length 80 [2023-12-02 16:18:28,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:18:28,477 INFO L495 AbstractCegarLoop]: Abstraction has 2602 states and 4974 transitions. [2023-12-02 16:18:28,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:28,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states and 4974 transitions. [2023-12-02 16:18:28,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 16:18:28,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:18:28,481 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] [2023-12-02 16:18:28,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-02 16:18:28,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:28,686 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:18:28,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:18:28,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1621811167, now seen corresponding path program 1 times [2023-12-02 16:18:28,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:18:28,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288997303] [2023-12-02 16:18:28,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:18:28,687 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:28,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:18:28,688 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:18:28,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-02 16:18:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:18:28,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 16:18:28,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:18:28,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-02 16:18:28,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2023-12-02 16:18:28,918 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:18:28,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 46 [2023-12-02 16:18:28,987 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:18:28,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 63 [2023-12-02 16:18:29,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:18:29,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:18:29,063 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:18:29,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288997303] [2023-12-02 16:18:29,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288997303] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:18:29,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:18:29,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:18:29,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017021993] [2023-12-02 16:18:29,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:18:29,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:18:29,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:18:29,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:18:29,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:18:29,065 INFO L87 Difference]: Start difference. First operand 2602 states and 4974 transitions. Second operand has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:29,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:18:29,684 INFO L93 Difference]: Finished difference Result 2706 states and 5153 transitions. [2023-12-02 16:18:29,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:18:29,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2023-12-02 16:18:29,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:18:29,696 INFO L225 Difference]: With dead ends: 2706 [2023-12-02 16:18:29,696 INFO L226 Difference]: Without dead ends: 2585 [2023-12-02 16:18:29,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:18:29,697 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 104 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:18:29,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 629 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 16:18:29,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2585 states. [2023-12-02 16:18:29,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2585 to 2566. [2023-12-02 16:18:29,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2540 states have (on average 1.9311023622047243) internal successors, (4905), 2565 states have internal predecessors, (4905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:29,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 4905 transitions. [2023-12-02 16:18:29,746 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 4905 transitions. Word has length 90 [2023-12-02 16:18:29,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:18:29,747 INFO L495 AbstractCegarLoop]: Abstraction has 2566 states and 4905 transitions. [2023-12-02 16:18:29,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:29,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 4905 transitions. [2023-12-02 16:18:29,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 16:18:29,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:18:29,750 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] [2023-12-02 16:18:29,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-02 16:18:29,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:29,951 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:18:29,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:18:29,951 INFO L85 PathProgramCache]: Analyzing trace with hash 651776046, now seen corresponding path program 1 times [2023-12-02 16:18:29,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:18:29,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371558439] [2023-12-02 16:18:29,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:18:29,952 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:29,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:18:29,953 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:18:29,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-02 16:18:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:18:30,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:18:30,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:18:30,061 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 16:18:30,061 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:18:30,061 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:18:30,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371558439] [2023-12-02 16:18:30,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371558439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:18:30,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:18:30,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:18:30,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148123755] [2023-12-02 16:18:30,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:18:30,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:18:30,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:18:30,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:18:30,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:18:30,064 INFO L87 Difference]: Start difference. First operand 2566 states and 4905 transitions. Second operand has 3 states, 2 states have (on average 45.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:30,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:18:30,113 INFO L93 Difference]: Finished difference Result 2540 states and 4851 transitions. [2023-12-02 16:18:30,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:18:30,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 45.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2023-12-02 16:18:30,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:18:30,122 INFO L225 Difference]: With dead ends: 2540 [2023-12-02 16:18:30,122 INFO L226 Difference]: Without dead ends: 2034 [2023-12-02 16:18:30,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 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 16:18:30,123 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 73 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:18:30,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 331 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:18:30,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2034 states. [2023-12-02 16:18:30,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2034 to 2010. [2023-12-02 16:18:30,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 1993 states have (on average 1.8866031108881083) internal successors, (3760), 2009 states have internal predecessors, (3760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:30,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 3760 transitions. [2023-12-02 16:18:30,179 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 3760 transitions. Word has length 90 [2023-12-02 16:18:30,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:18:30,179 INFO L495 AbstractCegarLoop]: Abstraction has 2010 states and 3760 transitions. [2023-12-02 16:18:30,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 45.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:30,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 3760 transitions. [2023-12-02 16:18:30,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 16:18:30,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:18:30,182 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] [2023-12-02 16:18:30,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-02 16:18:30,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:30,383 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:18:30,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:18:30,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1645863572, now seen corresponding path program 1 times [2023-12-02 16:18:30,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:18:30,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782831775] [2023-12-02 16:18:30,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:18:30,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:30,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:18:30,385 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:18:30,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-02 16:18:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:18:30,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 16:18:30,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:18:30,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2023-12-02 16:18:31,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2023-12-02 16:18:31,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:18:31,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 52 [2023-12-02 16:18:31,235 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:18:31,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 71 [2023-12-02 16:18:31,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:18:31,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 53 [2023-12-02 16:18:31,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:18:31,590 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:18:31,591 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:18:31,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782831775] [2023-12-02 16:18:31,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782831775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:18:31,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:18:31,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 16:18:31,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969932764] [2023-12-02 16:18:31,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:18:31,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 16:18:31,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:18:31,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 16:18:31,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-02 16:18:31,593 INFO L87 Difference]: Start difference. First operand 2010 states and 3760 transitions. Second operand has 10 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:37,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:18:37,377 INFO L93 Difference]: Finished difference Result 1982 states and 3698 transitions. [2023-12-02 16:18:37,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 16:18:37,378 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2023-12-02 16:18:37,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:18:37,384 INFO L225 Difference]: With dead ends: 1982 [2023-12-02 16:18:37,384 INFO L226 Difference]: Without dead ends: 1963 [2023-12-02 16:18:37,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-02 16:18:37,385 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 436 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:18:37,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 1028 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-02 16:18:37,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1963 states. [2023-12-02 16:18:37,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1963 to 1881. [2023-12-02 16:18:37,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1881 states, 1868 states have (on average 1.88169164882227) internal successors, (3515), 1880 states have internal predecessors, (3515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:37,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 3515 transitions. [2023-12-02 16:18:37,414 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 3515 transitions. Word has length 92 [2023-12-02 16:18:37,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:18:37,414 INFO L495 AbstractCegarLoop]: Abstraction has 1881 states and 3515 transitions. [2023-12-02 16:18:37,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:37,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 3515 transitions. [2023-12-02 16:18:37,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 16:18:37,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:18:37,416 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] [2023-12-02 16:18:37,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-12-02 16:18:37,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:37,616 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:18:37,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:18:37,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1964101063, now seen corresponding path program 1 times [2023-12-02 16:18:37,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:18:37,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924552241] [2023-12-02 16:18:37,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:18:37,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:37,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:18:37,618 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:18:37,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-02 16:18:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:18:37,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 16:18:37,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:18:38,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 16:18:38,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2023-12-02 16:18:38,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:18:38,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2023-12-02 16:18:38,353 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:18:38,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2023-12-02 16:18:38,442 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:18:38,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2023-12-02 16:18:38,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:18:38,543 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:18:38,543 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:18:38,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924552241] [2023-12-02 16:18:38,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924552241] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:18:38,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:18:38,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 16:18:38,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496057981] [2023-12-02 16:18:38,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:18:38,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 16:18:38,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:18:38,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 16:18:38,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-02 16:18:38,545 INFO L87 Difference]: Start difference. First operand 1881 states and 3515 transitions. Second operand has 10 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:40,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:18:40,574 INFO L93 Difference]: Finished difference Result 1821 states and 3395 transitions. [2023-12-02 16:18:40,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 16:18:40,575 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2023-12-02 16:18:40,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:18:40,579 INFO L225 Difference]: With dead ends: 1821 [2023-12-02 16:18:40,579 INFO L226 Difference]: Without dead ends: 1678 [2023-12-02 16:18:40,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-02 16:18:40,580 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 400 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:18:40,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 370 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-02 16:18:40,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2023-12-02 16:18:40,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1570. [2023-12-02 16:18:40,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1560 states have (on average 1.8826923076923077) internal successors, (2937), 1569 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:40,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 2937 transitions. [2023-12-02 16:18:40,607 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 2937 transitions. Word has length 92 [2023-12-02 16:18:40,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:18:40,607 INFO L495 AbstractCegarLoop]: Abstraction has 1570 states and 2937 transitions. [2023-12-02 16:18:40,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:40,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 2937 transitions. [2023-12-02 16:18:40,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 16:18:40,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:18:40,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:18:40,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-02 16:18:40,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:40,810 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:18:40,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:18:40,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1821297699, now seen corresponding path program 1 times [2023-12-02 16:18:40,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:18:40,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623091530] [2023-12-02 16:18:40,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:18:40,814 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:40,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:18:40,817 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:18:40,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-02 16:18:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:18:41,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 16:18:41,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:18:41,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-12-02 16:18:41,050 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-12-02 16:18:41,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-12-02 16:18:41,163 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-12-02 16:18:41,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2023-12-02 16:18:41,880 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:18:41,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-12-02 16:18:42,182 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:18:42,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2023-12-02 16:18:42,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-02 16:18:42,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2023-12-02 16:18:42,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2023-12-02 16:18:42,581 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:18:42,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 52 [2023-12-02 16:18:42,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:18:42,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 71 [2023-12-02 16:18:43,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:18:43,258 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:18:43,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2023-12-02 16:18:43,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2023-12-02 16:18:43,443 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:18:43,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2023-12-02 16:18:43,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2023-12-02 16:18:43,627 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:18:43,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2023-12-02 16:18:43,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2023-12-02 16:18:43,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:18:43,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 53 [2023-12-02 16:18:44,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 53 [2023-12-02 16:18:44,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:18:44,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:18:44,513 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:18:44,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623091530] [2023-12-02 16:18:44,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1623091530] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:18:44,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:18:44,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-02 16:18:44,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381792852] [2023-12-02 16:18:44,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:18:44,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 16:18:44,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:18:44,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 16:18:44,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-12-02 16:18:44,515 INFO L87 Difference]: Start difference. First operand 1570 states and 2937 transitions. Second operand has 15 states, 14 states have (on average 7.0) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:57,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:18:57,096 INFO L93 Difference]: Finished difference Result 1590 states and 2962 transitions. [2023-12-02 16:18:57,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 16:18:57,099 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.0) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-02 16:18:57,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:18:57,101 INFO L225 Difference]: With dead ends: 1590 [2023-12-02 16:18:57,102 INFO L226 Difference]: Without dead ends: 1574 [2023-12-02 16:18:57,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 80 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=191, Invalid=621, Unknown=0, NotChecked=0, Total=812 [2023-12-02 16:18:57,102 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 469 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:18:57,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 1822 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2023-12-02 16:18:57,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2023-12-02 16:18:57,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1566. [2023-12-02 16:18:57,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1556 states have (on average 1.8817480719794344) internal successors, (2928), 1565 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:57,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 2928 transitions. [2023-12-02 16:18:57,128 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 2928 transitions. Word has length 98 [2023-12-02 16:18:57,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:18:57,128 INFO L495 AbstractCegarLoop]: Abstraction has 1566 states and 2928 transitions. [2023-12-02 16:18:57,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.0) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:18:57,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 2928 transitions. [2023-12-02 16:18:57,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 16:18:57,131 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:18:57,131 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, 1, 1] [2023-12-02 16:18:57,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-02 16:18:57,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:57,332 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:18:57,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:18:57,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2063297593, now seen corresponding path program 2 times [2023-12-02 16:18:57,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:18:57,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71491078] [2023-12-02 16:18:57,333 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 16:18:57,333 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:18:57,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:18:57,334 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:18:57,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-02 16:18:57,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 16:18:57,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:18:57,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-02 16:18:57,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:18:57,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-12-02 16:18:57,594 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-12-02 16:18:57,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-12-02 16:18:57,714 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-12-02 16:18:57,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2023-12-02 16:18:58,370 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:18:58,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-12-02 16:18:58,610 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:18:58,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2023-12-02 16:18:58,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-02 16:18:58,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2023-12-02 16:18:58,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2023-12-02 16:18:58,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:18:58,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 52 [2023-12-02 16:18:59,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:18:59,246 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:18:59,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 71 [2023-12-02 16:18:59,463 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:18:59,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2023-12-02 16:18:59,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2023-12-02 16:18:59,629 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:18:59,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2023-12-02 16:18:59,639 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:18:59,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 21 [2023-12-02 16:18:59,828 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:18:59,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2023-12-02 16:18:59,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2023-12-02 16:18:59,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:18:59,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 53 [2023-12-02 16:19:00,342 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:19:00,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 87 [2023-12-02 16:19:00,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:19:00,600 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:19:00,600 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:19:00,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71491078] [2023-12-02 16:19:00,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [71491078] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:19:00,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:19:00,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-02 16:19:00,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182483438] [2023-12-02 16:19:00,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:19:00,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 16:19:00,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:19:00,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 16:19:00,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-12-02 16:19:00,602 INFO L87 Difference]: Start difference. First operand 1566 states and 2928 transitions. Second operand has 15 states, 14 states have (on average 7.0) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:19:05,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:19:07,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:19:11,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:19:14,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:19:16,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:19:19,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:19:21,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:19:24,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:19:26,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:19:30,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:19:32,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:19:34,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:19:37,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:19:39,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:19:41,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:19:43,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:19:43,383 INFO L93 Difference]: Finished difference Result 1613 states and 3004 transitions. [2023-12-02 16:19:43,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 16:19:43,385 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.0) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-02 16:19:43,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:19:43,389 INFO L225 Difference]: With dead ends: 1613 [2023-12-02 16:19:43,389 INFO L226 Difference]: Without dead ends: 1600 [2023-12-02 16:19:43,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 80 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2023-12-02 16:19:43,390 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 510 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 72 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:19:43,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 1804 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1252 Invalid, 14 Unknown, 0 Unchecked, 40.0s Time] [2023-12-02 16:19:43,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2023-12-02 16:19:43,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1580. [2023-12-02 16:19:43,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1570 states have (on average 1.8777070063694268) internal successors, (2948), 1579 states have internal predecessors, (2948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:19:43,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 2948 transitions. [2023-12-02 16:19:43,426 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 2948 transitions. Word has length 98 [2023-12-02 16:19:43,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:19:43,426 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 2948 transitions. [2023-12-02 16:19:43,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.0) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:19:43,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 2948 transitions. [2023-12-02 16:19:43,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 16:19:43,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:19:43,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:19:43,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-02 16:19:43,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:19:43,630 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:19:43,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:19:43,631 INFO L85 PathProgramCache]: Analyzing trace with hash -649763491, now seen corresponding path program 3 times [2023-12-02 16:19:43,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:19:43,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779502245] [2023-12-02 16:19:43,631 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 16:19:43,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:19:43,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:19:43,632 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:19:43,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-02 16:19:43,856 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 16:19:43,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:19:43,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 16:19:43,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:19:43,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-12-02 16:19:43,907 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-12-02 16:19:43,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-12-02 16:19:44,015 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-12-02 16:19:44,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2023-12-02 16:19:44,735 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:19:44,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-12-02 16:19:45,038 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:19:45,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2023-12-02 16:19:45,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-02 16:19:45,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2023-12-02 16:19:45,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2023-12-02 16:19:45,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:19:45,568 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:19:45,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 52 [2023-12-02 16:19:45,734 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:19:45,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 71 [2023-12-02 16:19:45,964 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:19:45,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2023-12-02 16:19:46,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2023-12-02 16:19:46,151 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:19:46,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2023-12-02 16:19:46,160 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:19:46,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 21 [2023-12-02 16:19:46,334 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:19:46,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2023-12-02 16:19:46,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2023-12-02 16:19:46,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:19:46,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 53 [2023-12-02 16:19:46,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 53 [2023-12-02 16:19:47,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:19:47,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:19:47,052 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:19:47,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779502245] [2023-12-02 16:19:47,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779502245] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:19:47,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:19:47,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-02 16:19:47,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312985056] [2023-12-02 16:19:47,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:19:47,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 16:19:47,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:19:47,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 16:19:47,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-12-02 16:19:47,054 INFO L87 Difference]: Start difference. First operand 1580 states and 2948 transitions. Second operand has 15 states, 14 states have (on average 7.0) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:19:56,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:19:59,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:20:02,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:20:02,116 INFO L93 Difference]: Finished difference Result 1646 states and 3060 transitions. [2023-12-02 16:20:02,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 16:20:02,118 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.0) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-02 16:20:02,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:20:02,120 INFO L225 Difference]: With dead ends: 1646 [2023-12-02 16:20:02,120 INFO L226 Difference]: Without dead ends: 1632 [2023-12-02 16:20:02,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 80 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=177, Invalid=635, Unknown=0, NotChecked=0, Total=812 [2023-12-02 16:20:02,121 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 396 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:20:02,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1515 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2023-12-02 16:20:02,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2023-12-02 16:20:02,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1594. [2023-12-02 16:20:02,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1594 states, 1584 states have (on average 1.8781565656565657) internal successors, (2975), 1593 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:20:02,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1594 states to 1594 states and 2975 transitions. [2023-12-02 16:20:02,141 INFO L78 Accepts]: Start accepts. Automaton has 1594 states and 2975 transitions. Word has length 98 [2023-12-02 16:20:02,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:20:02,142 INFO L495 AbstractCegarLoop]: Abstraction has 1594 states and 2975 transitions. [2023-12-02 16:20:02,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.0) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:20:02,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1594 states and 2975 transitions. [2023-12-02 16:20:02,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 16:20:02,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:20:02,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:20:02,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-02 16:20:02,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:20:02,344 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:20:02,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:20:02,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1723669063, now seen corresponding path program 4 times [2023-12-02 16:20:02,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:20:02,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040891065] [2023-12-02 16:20:02,345 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 16:20:02,345 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:20:02,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:20:02,346 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:20:02,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-02 16:20:02,491 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 16:20:02,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:20:02,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 16:20:02,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:20:02,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-12-02 16:20:02,539 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-12-02 16:20:02,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-12-02 16:20:02,628 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-12-02 16:20:02,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2023-12-02 16:20:03,213 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:20:03,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-12-02 16:20:03,458 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:20:03,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2023-12-02 16:20:03,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-02 16:20:03,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2023-12-02 16:20:03,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:20:03,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2023-12-02 16:20:03,855 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:20:03,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 52 [2023-12-02 16:20:04,009 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:20:04,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 71 [2023-12-02 16:20:04,183 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:20:04,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2023-12-02 16:20:04,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2023-12-02 16:20:04,394 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:20:04,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2023-12-02 16:20:04,403 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:20:04,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 21 [2023-12-02 16:20:04,636 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:20:04,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2023-12-02 16:20:04,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2023-12-02 16:20:04,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:20:04,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 53 [2023-12-02 16:20:05,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 53 [2023-12-02 16:20:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:20:05,268 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:20:05,268 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:20:05,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040891065] [2023-12-02 16:20:05,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040891065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:20:05,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:20:05,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-02 16:20:05,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247116194] [2023-12-02 16:20:05,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:20:05,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 16:20:05,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:20:05,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 16:20:05,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-12-02 16:20:05,270 INFO L87 Difference]: Start difference. First operand 1594 states and 2975 transitions. Second operand has 15 states, 14 states have (on average 7.0) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:20:14,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:20:14,724 INFO L93 Difference]: Finished difference Result 1679 states and 3123 transitions. [2023-12-02 16:20:14,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 16:20:14,726 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.0) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-02 16:20:14,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:20:14,730 INFO L225 Difference]: With dead ends: 1679 [2023-12-02 16:20:14,730 INFO L226 Difference]: Without dead ends: 1664 [2023-12-02 16:20:14,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 80 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=160, Invalid=596, Unknown=0, NotChecked=0, Total=756 [2023-12-02 16:20:14,731 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 490 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:20:14,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 979 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-12-02 16:20:14,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2023-12-02 16:20:14,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1608. [2023-12-02 16:20:14,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1598 states have (on average 1.8785982478097623) internal successors, (3002), 1607 states have internal predecessors, (3002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:20:14,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 3002 transitions. [2023-12-02 16:20:14,764 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 3002 transitions. Word has length 98 [2023-12-02 16:20:14,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:20:14,765 INFO L495 AbstractCegarLoop]: Abstraction has 1608 states and 3002 transitions. [2023-12-02 16:20:14,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.0) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:20:14,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 3002 transitions. [2023-12-02 16:20:14,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 16:20:14,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:20:14,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:20:14,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-12-02 16:20:14,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:20:14,968 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:20:14,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:20:14,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1650992861, now seen corresponding path program 5 times [2023-12-02 16:20:14,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:20:14,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930377775] [2023-12-02 16:20:14,969 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-02 16:20:14,969 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:20:14,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:20:14,970 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:20:14,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-02 16:20:15,102 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 16:20:15,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:20:15,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 16:20:15,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:20:15,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-12-02 16:20:15,158 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-12-02 16:20:15,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-12-02 16:20:15,265 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-12-02 16:20:15,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2023-12-02 16:20:15,918 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:20:15,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-12-02 16:20:16,134 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:20:16,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2023-12-02 16:20:16,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-02 16:20:16,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:20:16,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2023-12-02 16:20:16,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2023-12-02 16:20:16,489 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:20:16,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 52 [2023-12-02 16:20:16,657 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:20:16,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 71 [2023-12-02 16:20:16,836 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:20:16,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2023-12-02 16:20:16,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2023-12-02 16:20:17,059 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:20:17,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2023-12-02 16:20:17,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2023-12-02 16:20:17,253 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:20:17,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2023-12-02 16:20:17,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2023-12-02 16:20:17,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:20:17,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 53 [2023-12-02 16:20:17,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 53 [2023-12-02 16:20:17,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:20:17,924 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:20:17,924 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:20:17,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930377775] [2023-12-02 16:20:17,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930377775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:20:17,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:20:17,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-02 16:20:17,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384519181] [2023-12-02 16:20:17,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:20:17,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 16:20:17,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:20:17,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 16:20:17,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-12-02 16:20:17,925 INFO L87 Difference]: Start difference. First operand 1608 states and 3002 transitions. Second operand has 15 states, 14 states have (on average 7.0) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:20:25,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:20:27,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:20:30,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:20:31,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:20:31,096 INFO L93 Difference]: Finished difference Result 1604 states and 2992 transitions. [2023-12-02 16:20:31,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 16:20:31,098 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.0) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-02 16:20:31,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:20:31,101 INFO L225 Difference]: With dead ends: 1604 [2023-12-02 16:20:31,101 INFO L226 Difference]: Without dead ends: 1589 [2023-12-02 16:20:31,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 81 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=148, Invalid=554, Unknown=0, NotChecked=0, Total=702 [2023-12-02 16:20:31,102 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 324 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:20:31,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 1075 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 821 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2023-12-02 16:20:31,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2023-12-02 16:20:31,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1522. [2023-12-02 16:20:31,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 1514 states have (on average 1.880449141347424) internal successors, (2847), 1521 states have internal predecessors, (2847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:20:31,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 2847 transitions. [2023-12-02 16:20:31,130 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 2847 transitions. Word has length 98 [2023-12-02 16:20:31,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:20:31,130 INFO L495 AbstractCegarLoop]: Abstraction has 1522 states and 2847 transitions. [2023-12-02 16:20:31,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.0) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:20:31,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 2847 transitions. [2023-12-02 16:20:31,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 16:20:31,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:20:31,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:20:31,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-02 16:20:31,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:20:31,333 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:20:31,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:20:31,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1673529584, now seen corresponding path program 1 times [2023-12-02 16:20:31,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:20:31,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727797182] [2023-12-02 16:20:31,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:20:31,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:20:31,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:20:31,334 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:20:31,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-02 16:20:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:20:31,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 16:20:31,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:20:31,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-12-02 16:20:31,527 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-12-02 16:20:31,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-12-02 16:20:31,624 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-12-02 16:20:31,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2023-12-02 16:20:32,241 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:20:32,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-12-02 16:20:32,477 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:20:32,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2023-12-02 16:20:32,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-02 16:20:32,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:20:32,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-02 16:20:32,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2023-12-02 16:20:32,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:20:32,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 46 [2023-12-02 16:20:33,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 35 [2023-12-02 16:20:33,295 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:20:33,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 63 [2023-12-02 16:20:33,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:20:33,483 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:20:33,483 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:20:33,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727797182] [2023-12-02 16:20:33,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727797182] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:20:33,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:20:33,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-02 16:20:33,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326571108] [2023-12-02 16:20:33,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:20:33,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 16:20:33,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:20:33,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 16:20:33,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-12-02 16:20:33,484 INFO L87 Difference]: Start difference. First operand 1522 states and 2847 transitions. Second operand has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:20:43,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:20:46,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:20:49,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:20:49,769 INFO L93 Difference]: Finished difference Result 1601 states and 2981 transitions. [2023-12-02 16:20:49,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 16:20:49,771 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-02 16:20:49,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:20:49,773 INFO L225 Difference]: With dead ends: 1601 [2023-12-02 16:20:49,773 INFO L226 Difference]: Without dead ends: 1462 [2023-12-02 16:20:49,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2023-12-02 16:20:49,774 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 380 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-12-02 16:20:49,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 1167 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 547 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2023-12-02 16:20:49,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2023-12-02 16:20:49,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1462. [2023-12-02 16:20:49,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1454 states have (on average 1.875515818431912) internal successors, (2727), 1461 states have internal predecessors, (2727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:20:49,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 2727 transitions. [2023-12-02 16:20:49,791 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 2727 transitions. Word has length 98 [2023-12-02 16:20:49,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:20:49,791 INFO L495 AbstractCegarLoop]: Abstraction has 1462 states and 2727 transitions. [2023-12-02 16:20:49,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:20:49,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 2727 transitions. [2023-12-02 16:20:49,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 16:20:49,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:20:49,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:20:49,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-02 16:20:49,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:20:49,993 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:20:49,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:20:49,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1821542804, now seen corresponding path program 2 times [2023-12-02 16:20:49,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:20:49,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423573792] [2023-12-02 16:20:49,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 16:20:49,994 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:20:49,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:20:49,995 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:20:49,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-02 16:20:50,152 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 16:20:50,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:20:50,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 16:20:50,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:20:50,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-12-02 16:20:50,201 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-12-02 16:20:50,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-12-02 16:20:50,311 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-12-02 16:20:50,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2023-12-02 16:20:50,890 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 16:20:50,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-12-02 16:20:51,150 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 16:20:51,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2023-12-02 16:20:51,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-02 16:20:51,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:20:51,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-02 16:20:51,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2023-12-02 16:20:51,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2023-12-02 16:20:51,699 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:20:51,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 46 [2023-12-02 16:20:51,856 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:20:51,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 63 [2023-12-02 16:20:52,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:20:52,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:20:52,044 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:20:52,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423573792] [2023-12-02 16:20:52,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423573792] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:20:52,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:20:52,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-02 16:20:52,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267526634] [2023-12-02 16:20:52,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:20:52,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 16:20:52,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:20:52,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 16:20:52,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-12-02 16:20:52,046 INFO L87 Difference]: Start difference. First operand 1462 states and 2727 transitions. Second operand has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:20:56,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:21:00,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:21:07,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:21:08,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:21:11,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:21:15,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:21:16,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:21:17,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:17,073 INFO L93 Difference]: Finished difference Result 1442 states and 2688 transitions. [2023-12-02 16:21:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 16:21:17,075 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-02 16:21:17,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:17,077 INFO L225 Difference]: With dead ends: 1442 [2023-12-02 16:21:17,077 INFO L226 Difference]: Without dead ends: 1290 [2023-12-02 16:21:17,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 86 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2023-12-02 16:21:17,078 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 413 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 24 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:17,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 1113 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 497 Invalid, 4 Unknown, 0 Unchecked, 16.2s Time] [2023-12-02 16:21:17,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2023-12-02 16:21:17,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1290. [2023-12-02 16:21:17,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 1283 states have (on average 1.8830865159781762) internal successors, (2416), 1289 states have internal predecessors, (2416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:17,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 2416 transitions. [2023-12-02 16:21:17,091 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 2416 transitions. Word has length 98 [2023-12-02 16:21:17,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:17,092 INFO L495 AbstractCegarLoop]: Abstraction has 1290 states and 2416 transitions. [2023-12-02 16:21:17,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:17,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 2416 transitions. [2023-12-02 16:21:17,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-02 16:21:17,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:17,093 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:21:17,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-02 16:21:17,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:21:17,294 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:21:17,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:17,294 INFO L85 PathProgramCache]: Analyzing trace with hash 199605764, now seen corresponding path program 1 times [2023-12-02 16:21:17,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:21:17,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47429972] [2023-12-02 16:21:17,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:17,295 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:21:17,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:21:17,296 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:21:17,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-02 16:21:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:17,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:21:17,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:21:17,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-12-02 16:21:17,428 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:21:17,428 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:21:17,428 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:21:17,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47429972] [2023-12-02 16:21:17,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47429972] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:21:17,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:21:17,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:21:17,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925602625] [2023-12-02 16:21:17,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:21:17,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:21:17,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:21:17,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:21:17,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:21:17,430 INFO L87 Difference]: Start difference. First operand 1290 states and 2416 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:17,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:17,452 INFO L93 Difference]: Finished difference Result 1040 states and 1903 transitions. [2023-12-02 16:21:17,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:21:17,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 100 [2023-12-02 16:21:17,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:17,454 INFO L225 Difference]: With dead ends: 1040 [2023-12-02 16:21:17,454 INFO L226 Difference]: Without dead ends: 1040 [2023-12-02 16:21:17,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 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 16:21:17,455 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 40 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:17,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 248 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:21:17,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2023-12-02 16:21:17,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1040. [2023-12-02 16:21:17,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 1038 states have (on average 1.8333333333333333) internal successors, (1903), 1039 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:17,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1903 transitions. [2023-12-02 16:21:17,466 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1903 transitions. Word has length 100 [2023-12-02 16:21:17,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:17,466 INFO L495 AbstractCegarLoop]: Abstraction has 1040 states and 1903 transitions. [2023-12-02 16:21:17,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:17,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1903 transitions. [2023-12-02 16:21:17,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 16:21:17,467 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:17,468 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:21:17,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-02 16:21:17,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:21:17,668 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 16:21:17,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:17,669 INFO L85 PathProgramCache]: Analyzing trace with hash 381870235, now seen corresponding path program 1 times [2023-12-02 16:21:17,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:21:17,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1295105157] [2023-12-02 16:21:17,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:17,669 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:21:17,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:21:17,670 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:21:17,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-02 16:21:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:21:17,837 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:21:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:21:17,946 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 16:21:17,946 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:21:17,947 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2023-12-02 16:21:17,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2023-12-02 16:21:17,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2023-12-02 16:21:17,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2023-12-02 16:21:17,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2023-12-02 16:21:17,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2023-12-02 16:21:17,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2023-12-02 16:21:17,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2023-12-02 16:21:17,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2023-12-02 16:21:17,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2023-12-02 16:21:17,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2023-12-02 16:21:17,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2023-12-02 16:21:17,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2023-12-02 16:21:17,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2023-12-02 16:21:17,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2023-12-02 16:21:17,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2023-12-02 16:21:17,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2023-12-02 16:21:17,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2023-12-02 16:21:17,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-02 16:21:18,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:21:18,153 INFO L445 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:21:18,155 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-02 16:21:18,155 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-12-02 16:21:18,185 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-02 16:21:18,189 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 194 places, 195 transitions, 406 flow [2023-12-02 16:21:20,277 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 82895 states, 82541 states have (on average 2.915326928435565) internal successors, (240634), 82894 states have internal predecessors, (240634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:20,278 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:21:20,279 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;@ac673aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:21:20,279 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-12-02 16:21:20,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 82895 states, 82541 states have (on average 2.915326928435565) internal successors, (240634), 82894 states have internal predecessors, (240634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:20,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 16:21:20,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:20,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:21:20,366 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:21:20,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:20,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1562389508, now seen corresponding path program 1 times [2023-12-02 16:21:20,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:21:20,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270819462] [2023-12-02 16:21:20,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:20,368 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:21:20,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:21:20,369 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:21:20,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-02 16:21:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:20,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:21:20,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:21:20,496 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 16:21:20,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:21:20,496 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:21:20,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270819462] [2023-12-02 16:21:20,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270819462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:21:20,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:21:20,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:21:20,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546761129] [2023-12-02 16:21:20,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:21:20,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:21:20,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:21:20,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:21:20,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:21:20,613 INFO L87 Difference]: Start difference. First operand has 82895 states, 82541 states have (on average 2.915326928435565) internal successors, (240634), 82894 states have internal predecessors, (240634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:21,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:21,502 INFO L93 Difference]: Finished difference Result 82894 states and 238485 transitions. [2023-12-02 16:21:21,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:21:21,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2023-12-02 16:21:21,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:21,753 INFO L225 Difference]: With dead ends: 82894 [2023-12-02 16:21:21,753 INFO L226 Difference]: Without dead ends: 82507 [2023-12-02 16:21:21,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 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 16:21:21,754 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 2 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:21,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 343 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:21:22,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82507 states. [2023-12-02 16:21:23,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82507 to 82507. [2023-12-02 16:21:23,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82507 states, 82158 states have (on average 2.889870736872855) internal successors, (237426), 82506 states have internal predecessors, (237426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:24,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82507 states to 82507 states and 237426 transitions. [2023-12-02 16:21:24,399 INFO L78 Accepts]: Start accepts. Automaton has 82507 states and 237426 transitions. Word has length 38 [2023-12-02 16:21:24,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:24,399 INFO L495 AbstractCegarLoop]: Abstraction has 82507 states and 237426 transitions. [2023-12-02 16:21:24,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:24,399 INFO L276 IsEmpty]: Start isEmpty. Operand 82507 states and 237426 transitions. [2023-12-02 16:21:24,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 16:21:24,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:24,400 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] [2023-12-02 16:21:24,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2023-12-02 16:21:24,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:21:24,601 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-12-02 16:21:24,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:24,601 INFO L85 PathProgramCache]: Analyzing trace with hash -41034426, now seen corresponding path program 1 times [2023-12-02 16:21:24,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:21:24,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608395621] [2023-12-02 16:21:24,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:24,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:21:24,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:21:24,603 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:21:24,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63656c9f-7928-4dab-b0f6-8269adc12092/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-02 16:21:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:24,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:21:24,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:21:24,698 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 16:21:24,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:21:24,698 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:21:24,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608395621] [2023-12-02 16:21:24,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608395621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:21:24,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:21:24,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:21:24,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890679527] [2023-12-02 16:21:24,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:21:24,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:21:24,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:21:24,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:21:24,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:21:24,700 INFO L87 Difference]: Start difference. First operand 82507 states and 237426 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:25,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:25,449 INFO L93 Difference]: Finished difference Result 95464 states and 273717 transitions. [2023-12-02 16:21:25,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:21:25,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-12-02 16:21:25,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:25,790 INFO L225 Difference]: With dead ends: 95464 [2023-12-02 16:21:25,791 INFO L226 Difference]: Without dead ends: 95464 [2023-12-02 16:21:25,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 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 16:21:25,792 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 135 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:25,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 441 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:21:26,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95464 states.