./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/config/GemCutterReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-DataRace-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a0270befea30c9963adb19613f3074c8c29d9100e1f0592dc0c89cf3d3dda0df --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-17 22:50:11,758 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 22:50:11,838 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2023-11-17 22:50:11,845 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-17 22:50:11,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-17 22:50:11,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 22:50:11,879 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-17 22:50:11,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-17 22:50:11,880 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 22:50:11,881 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 22:50:11,882 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 22:50:11,883 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 22:50:11,883 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 22:50:11,884 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 22:50:11,885 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 22:50:11,886 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 22:50:11,886 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 22:50:11,887 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 22:50:11,888 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 22:50:11,889 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 22:50:11,889 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 22:50:11,890 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 22:50:11,891 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-17 22:50:11,892 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-17 22:50:11,892 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 22:50:11,893 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 22:50:11,893 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 22:50:11,894 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 22:50:11,895 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 22:50:11,895 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 22:50:11,896 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 22:50:11,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:50:11,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 22:50:11,897 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 22:50:11,897 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 22:50:11,898 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 22:50:11,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 22:50:11,898 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-17 22:50:11,899 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-17 22:50:11,899 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-17 22:50:11,899 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-17 22:50:11,900 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-17 22:50:11,901 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-17 22:50:11,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0270befea30c9963adb19613f3074c8c29d9100e1f0592dc0c89cf3d3dda0df [2023-11-17 22:50:12,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 22:50:12,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 22:50:12,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 22:50:12,293 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 22:50:12,293 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 22:50:12,295 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i [2023-11-17 22:50:15,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 22:50:16,143 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 22:50:16,144 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i [2023-11-17 22:50:16,170 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/data/8099ddaef/81451f3102c643829c54206c2124e0b1/FLAG52ad3d920 [2023-11-17 22:50:16,189 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/data/8099ddaef/81451f3102c643829c54206c2124e0b1 [2023-11-17 22:50:16,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 22:50:16,194 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-17 22:50:16,196 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 22:50:16,197 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 22:50:16,203 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 22:50:16,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:50:16" (1/1) ... [2023-11-17 22:50:16,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ab26b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:16, skipping insertion in model container [2023-11-17 22:50:16,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:50:16" (1/1) ... [2023-11-17 22:50:16,269 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 22:50:16,935 WARN L1588 CHandler]: Possible shadowing of function new [2023-11-17 22:50:16,937 WARN L1588 CHandler]: Possible shadowing of function new [2023-11-17 22:50:16,942 WARN L1588 CHandler]: Possible shadowing of function new [2023-11-17 22:50:16,946 WARN L1588 CHandler]: Possible shadowing of function new [2023-11-17 22:50:16,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:50:16,993 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 22:50:17,041 WARN L1588 CHandler]: Possible shadowing of function new [2023-11-17 22:50:17,043 WARN L1588 CHandler]: Possible shadowing of function new [2023-11-17 22:50:17,049 WARN L1588 CHandler]: Possible shadowing of function new [2023-11-17 22:50:17,053 WARN L1588 CHandler]: Possible shadowing of function new [2023-11-17 22:50:17,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:50:17,157 INFO L206 MainTranslator]: Completed translation [2023-11-17 22:50:17,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:17 WrapperNode [2023-11-17 22:50:17,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 22:50:17,160 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 22:50:17,160 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 22:50:17,160 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 22:50:17,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:17" (1/1) ... [2023-11-17 22:50:17,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:17" (1/1) ... [2023-11-17 22:50:17,295 INFO L138 Inliner]: procedures = 272, calls = 35, calls flagged for inlining = 9, calls inlined = 8, statements flattened = 220 [2023-11-17 22:50:17,298 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 22:50:17,299 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 22:50:17,299 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 22:50:17,299 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 22:50:17,311 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:17" (1/1) ... [2023-11-17 22:50:17,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:17" (1/1) ... [2023-11-17 22:50:17,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:17" (1/1) ... [2023-11-17 22:50:17,321 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:17" (1/1) ... [2023-11-17 22:50:17,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:17" (1/1) ... [2023-11-17 22:50:17,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:17" (1/1) ... [2023-11-17 22:50:17,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:17" (1/1) ... [2023-11-17 22:50:17,361 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:17" (1/1) ... [2023-11-17 22:50:17,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 22:50:17,369 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 22:50:17,369 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 22:50:17,369 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 22:50:17,370 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:17" (1/1) ... [2023-11-17 22:50:17,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:50:17,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:17,426 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 22:50:17,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 22:50:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-11-17 22:50:17,485 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-11-17 22:50:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 22:50:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-17 22:50:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 22:50:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 22:50:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 22:50:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 22:50:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 22:50:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 22:50:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-17 22:50:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 22:50:17,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 22:50:17,491 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 22:50:17,748 INFO L236 CfgBuilder]: Building ICFG [2023-11-17 22:50:17,750 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 22:50:18,367 INFO L277 CfgBuilder]: Performing block encoding [2023-11-17 22:50:18,381 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 22:50:18,381 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-17 22:50:18,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:50:18 BoogieIcfgContainer [2023-11-17 22:50:18,388 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 22:50:18,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 22:50:18,391 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 22:50:18,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 22:50:18,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 10:50:16" (1/3) ... [2023-11-17 22:50:18,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74763790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:50:18, skipping insertion in model container [2023-11-17 22:50:18,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:17" (2/3) ... [2023-11-17 22:50:18,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74763790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:50:18, skipping insertion in model container [2023-11-17 22:50:18,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:50:18" (3/3) ... [2023-11-17 22:50:18,399 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_22-nocollapse.i [2023-11-17 22:50:18,410 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-17 22:50:18,424 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 22:50:18,424 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-17 22:50:18,424 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 22:50:18,572 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-17 22:50:18,637 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:50:18,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 22:50:18,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:18,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-17 22:50:18,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-17 22:50:18,731 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 22:50:18,748 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-17 22:50:18,759 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=PARTIAL_ORDER_FA, 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;@1f1b11e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:50:18,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-17 22:50:18,838 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-17 22:50:18,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:18,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1455794857, now seen corresponding path program 1 times [2023-11-17 22:50:18,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:18,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339747441] [2023-11-17 22:50:18,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:18,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:50:19,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:19,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:19,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339747441] [2023-11-17 22:50:19,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339747441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:50:19,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:50:19,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 22:50:19,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766110629] [2023-11-17 22:50:19,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:50:19,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 22:50:19,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:19,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 22:50:19,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 22:50:19,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:19,311 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:19,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:19,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:19,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:19,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 22:50:19,332 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-17 22:50:19,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:19,334 INFO L85 PathProgramCache]: Analyzing trace with hash -61733952, now seen corresponding path program 1 times [2023-11-17 22:50:19,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:19,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369806467] [2023-11-17 22:50:19,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:19,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:50:20,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:20,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:20,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369806467] [2023-11-17 22:50:20,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369806467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:50:20,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:50:20,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 22:50:20,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137334619] [2023-11-17 22:50:20,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:50:20,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:50:20,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:20,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:50:20,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-17 22:50:20,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:20,181 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:20,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:20,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:20,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:20,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:20,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:20,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 22:50:20,296 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-17 22:50:20,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:20,297 INFO L85 PathProgramCache]: Analyzing trace with hash 733747461, now seen corresponding path program 1 times [2023-11-17 22:50:20,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:20,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121162825] [2023-11-17 22:50:20,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:20,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:50:20,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:20,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:20,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121162825] [2023-11-17 22:50:20,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121162825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:50:20,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:50:20,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 22:50:20,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986442658] [2023-11-17 22:50:20,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:50:20,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:50:20,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:20,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:50:20,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-17 22:50:20,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:20,986 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:20,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:20,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:20,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:20,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:21,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:21,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 22:50:21,152 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-17 22:50:21,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:21,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1043542521, now seen corresponding path program 1 times [2023-11-17 22:50:21,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:21,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117998117] [2023-11-17 22:50:21,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:21,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:21,207 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-17 22:50:21,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [932795620] [2023-11-17 22:50:21,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:21,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:21,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:21,230 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:50:21,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-17 22:50:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:50:21,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-17 22:50:21,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:50:21,554 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 [2023-11-17 22:50:21,575 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 20 [2023-11-17 22:50:21,620 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:21,621 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 32 [2023-11-17 22:50:21,675 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:21,675 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 44 [2023-11-17 22:50:21,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:21,711 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:50:21,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:21,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117998117] [2023-11-17 22:50:21,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 22:50:21,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932795620] [2023-11-17 22:50:21,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932795620] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:50:21,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:50:21,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 22:50:21,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654844012] [2023-11-17 22:50:21,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:50:21,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:50:21,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:21,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:50:21,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-17 22:50:21,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:21,717 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:21,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:21,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:21,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:21,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:21,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:22,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:22,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:22,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:22,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:22,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-17 22:50:22,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:22,253 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-17 22:50:22,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:22,254 INFO L85 PathProgramCache]: Analyzing trace with hash -755983104, now seen corresponding path program 1 times [2023-11-17 22:50:22,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:22,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638875237] [2023-11-17 22:50:22,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:22,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:22,296 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-17 22:50:22,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [846752739] [2023-11-17 22:50:22,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:22,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:22,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:22,308 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:50:22,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-17 22:50:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:50:22,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-17 22:50:22,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:50:22,554 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 [2023-11-17 22:50:22,567 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 20 [2023-11-17 22:50:22,593 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:22,594 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 32 [2023-11-17 22:50:22,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:22,631 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 44 [2023-11-17 22:50:22,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:22,662 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:50:22,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:22,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638875237] [2023-11-17 22:50:22,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 22:50:22,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846752739] [2023-11-17 22:50:22,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846752739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:50:22,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:50:22,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 22:50:22,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423591825] [2023-11-17 22:50:22,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:50:22,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:50:22,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:22,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:50:22,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-17 22:50:22,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:22,667 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:22,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:22,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:22,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:22,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:22,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:22,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:22,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-17 22:50:23,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:23,076 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-17 22:50:23,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:23,076 INFO L85 PathProgramCache]: Analyzing trace with hash 927530913, now seen corresponding path program 1 times [2023-11-17 22:50:23,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:23,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053210697] [2023-11-17 22:50:23,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:23,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:23,137 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-17 22:50:23,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [338821448] [2023-11-17 22:50:23,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:23,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:23,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:23,140 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:50:23,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-17 22:50:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:50:23,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-17 22:50:23,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:50:23,463 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 13 treesize of output 9 [2023-11-17 22:50:23,482 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 23 treesize of output 22 [2023-11-17 22:50:23,508 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:23,509 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 32 treesize of output 34 [2023-11-17 22:50:23,546 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:23,547 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 41 treesize of output 46 [2023-11-17 22:50:23,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:23,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:50:23,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:23,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053210697] [2023-11-17 22:50:23,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 22:50:23,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338821448] [2023-11-17 22:50:23,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338821448] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:50:23,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:50:23,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 22:50:23,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666749915] [2023-11-17 22:50:23,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:50:23,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:50:23,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:23,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:50:23,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-17 22:50:23,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:23,584 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:23,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.2) internal successors, (106), 6 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:23,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:23,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:23,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:23,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:23,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:23,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:23,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:23,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:23,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-17 22:50:24,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-17 22:50:24,084 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-17 22:50:24,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:24,085 INFO L85 PathProgramCache]: Analyzing trace with hash -726970218, now seen corresponding path program 1 times [2023-11-17 22:50:24,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:24,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623140880] [2023-11-17 22:50:24,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:24,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:24,135 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-17 22:50:24,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [484066703] [2023-11-17 22:50:24,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:24,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:24,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:24,138 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:50:24,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-17 22:50:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:50:24,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-17 22:50:24,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:50:24,612 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 [2023-11-17 22:50:24,650 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 [2023-11-17 22:50:24,695 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:24,696 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 [2023-11-17 22:50:24,761 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:24,762 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 [2023-11-17 22:50:24,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:24,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:50:24,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:24,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623140880] [2023-11-17 22:50:24,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 22:50:24,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484066703] [2023-11-17 22:50:24,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484066703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:50:24,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:50:24,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-17 22:50:24,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029102744] [2023-11-17 22:50:24,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:50:24,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-17 22:50:24,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:24,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-17 22:50:24,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-17 22:50:24,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:24,818 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:24,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.5) internal successors, (114), 13 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:24,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:24,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:24,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:24,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:24,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:24,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:24,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:25,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:25,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:25,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:25,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:25,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:25,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:25,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:50:25,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-17 22:50:25,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-17 22:50:25,556 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-17 22:50:25,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:25,557 INFO L85 PathProgramCache]: Analyzing trace with hash -469425224, now seen corresponding path program 1 times [2023-11-17 22:50:25,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:25,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471508924] [2023-11-17 22:50:25,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:25,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:25,614 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-17 22:50:25,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [395091344] [2023-11-17 22:50:25,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:25,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:25,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:25,617 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:50:25,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-17 22:50:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:50:25,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-17 22:50:25,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:50:26,104 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 [2023-11-17 22:50:26,144 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 [2023-11-17 22:50:26,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:26,188 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 [2023-11-17 22:50:26,239 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:26,240 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 [2023-11-17 22:50:26,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:26,281 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:50:26,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:26,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471508924] [2023-11-17 22:50:26,282 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 22:50:26,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395091344] [2023-11-17 22:50:26,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395091344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:50:26,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:50:26,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-17 22:50:26,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005923923] [2023-11-17 22:50:26,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:50:26,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-17 22:50:26,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:26,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-17 22:50:26,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-17 22:50:26,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:26,292 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:26,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.166666666666666) internal successors, (122), 13 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:26,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:26,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:26,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:26,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:26,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:26,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:26,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:50:26,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:26,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:26,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:26,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:26,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:26,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:26,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:26,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:50:26,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:50:26,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-17 22:50:26,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-17 22:50:26,955 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-17 22:50:26,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:26,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1302089286, now seen corresponding path program 1 times [2023-11-17 22:50:26,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:26,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050422270] [2023-11-17 22:50:26,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:26,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:27,004 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-17 22:50:27,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1085651319] [2023-11-17 22:50:27,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:27,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:27,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:27,006 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:50:27,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-17 22:50:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:50:27,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-17 22:50:27,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:50:27,335 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 [2023-11-17 22:50:27,375 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 20 [2023-11-17 22:50:27,399 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:27,399 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 32 [2023-11-17 22:50:27,432 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:27,433 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 44 [2023-11-17 22:50:27,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:27,461 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:50:27,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:27,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050422270] [2023-11-17 22:50:27,462 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 22:50:27,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085651319] [2023-11-17 22:50:27,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085651319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:50:27,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:50:27,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 22:50:27,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794133817] [2023-11-17 22:50:27,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:50:27,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:50:27,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:27,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:50:27,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-17 22:50:27,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:27,468 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:27,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.0) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:27,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:27,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:27,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:27,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:27,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:27,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:27,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:50:27,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:50:27,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:27,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:27,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-17 22:50:27,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-17 22:50:27,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:27,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2023-11-17 22:50:27,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-11-17 22:50:27,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-11-17 22:50:27,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-11-17 22:50:27,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-11-17 22:50:27,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-11-17 22:50:27,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-11-17 22:50:27,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-11-17 22:50:27,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-11-17 22:50:27,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-11-17 22:50:27,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-11-17 22:50:27,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-11-17 22:50:27,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-17 22:50:28,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-17 22:50:28,107 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 22:50:28,109 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/3) [2023-11-17 22:50:28,117 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:50:28,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 22:50:28,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:28,119 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-17 22:50:28,124 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 22:50:28,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == fThread1of1ForFork0 ======== [2023-11-17 22:50:28,125 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=PARTIAL_ORDER_FA, 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;@1f1b11e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:50:28,125 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-17 22:50:28,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2023-11-17 22:50:28,310 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-17 22:50:28,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:28,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1324196725, now seen corresponding path program 1 times [2023-11-17 22:50:28,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:28,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81570832] [2023-11-17 22:50:28,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:28,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:50:28,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:28,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:28,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81570832] [2023-11-17 22:50:28,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81570832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:50:28,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:50:28,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 22:50:28,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046179933] [2023-11-17 22:50:28,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:50:28,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 22:50:28,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:28,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 22:50:28,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 22:50:28,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:28,351 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:28,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 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) [2023-11-17 22:50:28,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:28,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:28,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-17 22:50:28,377 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-17 22:50:28,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:28,378 INFO L85 PathProgramCache]: Analyzing trace with hash 747473554, now seen corresponding path program 1 times [2023-11-17 22:50:28,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:28,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370057680] [2023-11-17 22:50:28,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:28,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:50:28,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:28,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:28,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370057680] [2023-11-17 22:50:28,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370057680] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:50:28,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:50:28,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 22:50:28,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220561054] [2023-11-17 22:50:28,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:50:28,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 22:50:28,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:28,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 22:50:28,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 22:50:28,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:28,445 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:28,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:28,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:28,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:28,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:28,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:28,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-17 22:50:28,500 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-17 22:50:28,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:28,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1469548455, now seen corresponding path program 1 times [2023-11-17 22:50:28,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:28,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565788637] [2023-11-17 22:50:28,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:28,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:50:28,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:28,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:28,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565788637] [2023-11-17 22:50:28,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565788637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:50:28,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:50:28,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 22:50:28,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361155729] [2023-11-17 22:50:28,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:50:28,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 22:50:28,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:28,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 22:50:28,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 22:50:28,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:28,638 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:28,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:28,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:28,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:28,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:28,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:28,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:28,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:28,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-17 22:50:28,689 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-17 22:50:28,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:28,690 INFO L85 PathProgramCache]: Analyzing trace with hash -461009026, now seen corresponding path program 1 times [2023-11-17 22:50:28,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:28,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67404041] [2023-11-17 22:50:28,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:28,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:28,733 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-17 22:50:28,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [313625613] [2023-11-17 22:50:28,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:28,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:28,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:28,736 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:50:28,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-17 22:50:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:50:29,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-17 22:50:29,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:50:29,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:29,262 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:50:29,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:29,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:29,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67404041] [2023-11-17 22:50:29,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 22:50:29,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313625613] [2023-11-17 22:50:29,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313625613] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:50:29,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-17 22:50:29,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-17 22:50:29,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892127185] [2023-11-17 22:50:29,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-17 22:50:29,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 22:50:29,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:29,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 22:50:29,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-17 22:50:29,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:29,439 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:29,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 33.25) internal successors, (266), 8 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:29,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:29,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:29,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:29,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:29,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:29,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:29,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:29,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:50:29,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-17 22:50:29,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:29,781 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-17 22:50:29,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:29,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1035446942, now seen corresponding path program 2 times [2023-11-17 22:50:29,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:29,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201289416] [2023-11-17 22:50:29,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:29,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:29,911 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-17 22:50:29,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1603304103] [2023-11-17 22:50:29,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 22:50:29,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:29,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:29,921 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:50:29,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-17 22:50:30,336 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-17 22:50:30,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:50:30,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-17 22:50:30,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:50:30,378 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 [2023-11-17 22:50:30,391 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 [2023-11-17 22:50:30,417 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:30,417 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 [2023-11-17 22:50:30,461 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:30,462 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 [2023-11-17 22:50:30,490 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2023-11-17 22:50:30,490 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:50:30,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:30,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201289416] [2023-11-17 22:50:30,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 22:50:30,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603304103] [2023-11-17 22:50:30,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603304103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:50:30,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:50:30,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 22:50:30,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134377876] [2023-11-17 22:50:30,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:50:30,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:50:30,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:30,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:50:30,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-17 22:50:30,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:30,495 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:30,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 34.6) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:30,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:30,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:30,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:30,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:50:30,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:30,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:30,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:30,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:30,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:50:30,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:30,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-17 22:50:31,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-17 22:50:31,137 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-17 22:50:31,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:31,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1893793254, now seen corresponding path program 1 times [2023-11-17 22:50:31,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:31,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794064408] [2023-11-17 22:50:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:31,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:31,234 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-17 22:50:31,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1234598043] [2023-11-17 22:50:31,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:31,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:31,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:31,236 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:50:31,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-17 22:50:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:50:31,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-17 22:50:31,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:50:32,492 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 1 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:32,492 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:50:33,074 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 1 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:33,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:33,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794064408] [2023-11-17 22:50:33,075 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 22:50:33,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234598043] [2023-11-17 22:50:33,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234598043] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:50:33,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-17 22:50:33,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-17 22:50:33,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636074719] [2023-11-17 22:50:33,077 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-17 22:50:33,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-17 22:50:33,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:33,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-17 22:50:33,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-17 22:50:33,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:33,084 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:33,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 40.0) internal successors, (640), 16 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:33,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:33,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:33,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:33,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:50:33,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:33,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:33,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:33,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:33,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:33,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:50:33,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:33,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:50:33,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-17 22:50:33,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:33,669 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-17 22:50:33,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:33,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1178231770, now seen corresponding path program 2 times [2023-11-17 22:50:33,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:33,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706832367] [2023-11-17 22:50:33,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:33,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:33,844 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-17 22:50:33,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1315883973] [2023-11-17 22:50:33,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 22:50:33,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:33,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:33,846 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:50:33,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-17 22:50:34,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-17 22:50:34,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:50:34,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-17 22:50:34,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:50:34,537 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 [2023-11-17 22:50:34,549 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 20 [2023-11-17 22:50:34,567 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:34,567 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 32 [2023-11-17 22:50:34,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:34,645 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 44 [2023-11-17 22:50:34,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1919 trivial. 0 not checked. [2023-11-17 22:50:34,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:50:34,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:34,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706832367] [2023-11-17 22:50:34,677 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 22:50:34,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315883973] [2023-11-17 22:50:34,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315883973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:50:34,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:50:34,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 22:50:34,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445911149] [2023-11-17 22:50:34,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:50:34,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:50:34,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:34,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:50:34,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-17 22:50:34,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:34,682 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:34,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 36.6) internal successors, (183), 6 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:34,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:34,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:34,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:34,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:50:34,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:34,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:50:34,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:35,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:35,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:35,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:35,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:50:35,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:35,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:50:35,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:35,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-17 22:50:35,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-17 22:50:35,229 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting fErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-17 22:50:35,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:35,229 INFO L85 PathProgramCache]: Analyzing trace with hash 603272875, now seen corresponding path program 1 times [2023-11-17 22:50:35,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:35,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307300376] [2023-11-17 22:50:35,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:35,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:35,412 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-17 22:50:35,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [882523261] [2023-11-17 22:50:35,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:35,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:35,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:35,415 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:50:35,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-17 22:50:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:50:36,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 2905 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-17 22:50:36,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:50:37,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 1 proven. 1918 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:37,924 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:50:39,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 1 proven. 1918 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:39,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:39,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307300376] [2023-11-17 22:50:39,277 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 22:50:39,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882523261] [2023-11-17 22:50:39,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882523261] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:50:39,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-17 22:50:39,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2023-11-17 22:50:39,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371454569] [2023-11-17 22:50:39,279 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-17 22:50:39,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-17 22:50:39,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:39,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-17 22:50:39,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2023-11-17 22:50:39,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:39,288 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:39,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 43.0) internal successors, (1376), 32 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:39,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:39,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:39,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:39,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:50:39,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:39,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:50:39,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:39,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:40,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:40,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:40,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:50:40,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:40,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:50:40,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:40,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-17 22:50:40,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-17 22:50:40,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-17 22:50:40,565 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting fErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-17 22:50:40,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:40,566 INFO L85 PathProgramCache]: Analyzing trace with hash -540093653, now seen corresponding path program 2 times [2023-11-17 22:50:40,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:40,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771445319] [2023-11-17 22:50:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:40,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:40,963 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-17 22:50:40,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [499019736] [2023-11-17 22:50:40,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 22:50:40,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:40,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:40,965 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:50:40,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-17 22:50:42,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-17 22:50:42,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:50:42,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-17 22:50:42,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:50:42,312 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 [2023-11-17 22:50:42,325 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 20 [2023-11-17 22:50:42,345 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:42,346 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 32 [2023-11-17 22:50:42,369 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:42,370 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 44 [2023-11-17 22:50:42,477 INFO L134 CoverageAnalysis]: Checked inductivity of 9571 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9571 trivial. 0 not checked. [2023-11-17 22:50:42,477 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:50:42,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:42,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771445319] [2023-11-17 22:50:42,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 22:50:42,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499019736] [2023-11-17 22:50:42,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499019736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:50:42,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:50:42,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 22:50:42,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080478588] [2023-11-17 22:50:42,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:50:42,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:50:42,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:42,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:50:42,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-17 22:50:42,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:42,485 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:42,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 38.2) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:42,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:42,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:50:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:50:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:42,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-11-17 22:50:42,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:42,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:42,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:42,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:50:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:50:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-17 22:50:43,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:43,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-17 22:50:43,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-17 22:50:43,225 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting fErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-17 22:50:43,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:43,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1154399028, now seen corresponding path program 1 times [2023-11-17 22:50:43,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:43,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949619348] [2023-11-17 22:50:43,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:43,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:43,643 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-17 22:50:43,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [737469904] [2023-11-17 22:50:43,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:43,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:43,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:43,645 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:50:43,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-17 22:50:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:50:46,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 5888 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-17 22:50:46,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:50:48,452 INFO L134 CoverageAnalysis]: Checked inductivity of 9571 backedges. 1 proven. 9570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:48,453 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:50:51,140 INFO L134 CoverageAnalysis]: Checked inductivity of 9571 backedges. 1 proven. 9570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:50:51,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:51,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949619348] [2023-11-17 22:50:51,141 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 22:50:51,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737469904] [2023-11-17 22:50:51,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737469904] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:50:51,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-17 22:50:51,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 61 [2023-11-17 22:50:51,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064822776] [2023-11-17 22:50:51,144 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-17 22:50:51,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-11-17 22:50:51,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:51,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-11-17 22:50:51,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=960, Invalid=2700, Unknown=0, NotChecked=0, Total=3660 [2023-11-17 22:50:51,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:51,166 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:51,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 45.08196721311475) internal successors, (2750), 61 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:51,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:51,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:51,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:51,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:50:51,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:51,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:50:51,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:51,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-11-17 22:50:51,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:51,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:54,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:54,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:54,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:54,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:50:54,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:54,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:50:54,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:54,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-17 22:50:54,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:54,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2023-11-17 22:50:54,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-17 22:50:54,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:54,519 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting fErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-17 22:50:54,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:50:54,521 INFO L85 PathProgramCache]: Analyzing trace with hash -977710535, now seen corresponding path program 2 times [2023-11-17 22:50:54,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:50:54,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348043032] [2023-11-17 22:50:54,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:50:54,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:50:55,156 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-17 22:50:55,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1911369873] [2023-11-17 22:50:55,157 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 22:50:55,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:50:55,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:55,158 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:50:55,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-17 22:50:57,478 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-17 22:50:57,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:50:57,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-17 22:50:57,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:50:57,804 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 13 treesize of output 9 [2023-11-17 22:50:57,814 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 23 treesize of output 22 [2023-11-17 22:50:57,835 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:57,835 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 32 treesize of output 34 [2023-11-17 22:50:57,863 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 22:50:57,863 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 41 treesize of output 46 [2023-11-17 22:50:57,910 INFO L134 CoverageAnalysis]: Checked inductivity of 39616 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39616 trivial. 0 not checked. [2023-11-17 22:50:57,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:50:57,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:50:57,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348043032] [2023-11-17 22:50:57,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 22:50:57,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911369873] [2023-11-17 22:50:57,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911369873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:50:57,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:50:57,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 22:50:57,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328681625] [2023-11-17 22:50:57,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:50:57,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:50:57,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:50:57,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:50:57,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-17 22:50:57,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:57,920 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:50:57,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 40.0) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:50:57,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:50:57,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:57,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:50:57,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:50:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:50:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-11-17 22:50:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:50:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2023-11-17 22:50:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:51:00,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:51:00,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:51:00,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:51:00,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:51:00,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:51:00,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:51:00,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:51:00,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-17 22:51:00,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:51:00,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2023-11-17 22:51:00,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:51:00,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ea9f83-363c-4d3b-964e-8b6567d71a73/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0