./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-binomial-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-binomial-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/config/svcomp-DataRace-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx --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 f3721357e68fd557f222f8a0ce5068ab4a46e5f8573d31ce219014656501246c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:27:23,287 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:27:23,361 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2023-12-02 20:27:23,366 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 20:27:23,367 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 20:27:23,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:27:23,391 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 20:27:23,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 20:27:23,392 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 20:27:23,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 20:27:23,394 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 20:27:23,395 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 20:27:23,395 INFO L153 SettingsManager]: * Use SBE=true [2023-12-02 20:27:23,396 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:27:23,397 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 20:27:23,397 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 20:27:23,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 20:27:23,398 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 20:27:23,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:27:23,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 20:27:23,400 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:27:23,401 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 20:27:23,401 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 20:27:23,402 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 20:27:23,402 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 20:27:23,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 20:27:23,403 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:27:23,404 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:27:23,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 20:27:23,404 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-02 20:27:23,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 20:27:23,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:27:23,406 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:27:23,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:27:23,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 20:27:23,406 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-02 20:27:23,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 20:27:23,407 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 20:27:23,407 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-12-02 20:27:23,407 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-12-02 20:27:23,407 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 20:27:23,408 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-12-02 20:27:23,408 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-12-02 20:27:23,408 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_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3721357e68fd557f222f8a0ce5068ab4a46e5f8573d31ce219014656501246c [2023-12-02 20:27:23,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:27:23,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:27:23,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:27:23,679 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:27:23,680 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:27:23,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/../../sv-benchmarks/c/pthread-race-challenges/thread-join-binomial-race.i [2023-12-02 20:27:26,641 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:27:26,924 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:27:26,925 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/sv-benchmarks/c/pthread-race-challenges/thread-join-binomial-race.i [2023-12-02 20:27:26,946 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/data/eaffd229f/b4b86c47858e4d11afd04c08f6506e83/FLAGe3d6d5b2a [2023-12-02 20:27:26,964 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/data/eaffd229f/b4b86c47858e4d11afd04c08f6506e83 [2023-12-02 20:27:26,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:27:26,969 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:27:26,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:27:26,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:27:26,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:27:26,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:27:26" (1/1) ... [2023-12-02 20:27:26,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6af2dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:27:26, skipping insertion in model container [2023-12-02 20:27:26,979 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:27:26" (1/1) ... [2023-12-02 20:27:27,049 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:27:27,562 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:27:27,578 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 20:27:27,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:27:27,715 INFO L206 MainTranslator]: Completed translation [2023-12-02 20:27:27,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:27:27 WrapperNode [2023-12-02 20:27:27,716 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:27:27,717 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 20:27:27,717 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 20:27:27,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 20:27:27,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:27:27" (1/1) ... [2023-12-02 20:27:27,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:27:27" (1/1) ... [2023-12-02 20:27:27,781 INFO L138 Inliner]: procedures = 268, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2023-12-02 20:27:27,782 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 20:27:27,783 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 20:27:27,783 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 20:27:27,783 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 20:27:27,794 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:27:27" (1/1) ... [2023-12-02 20:27:27,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:27:27" (1/1) ... [2023-12-02 20:27:27,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:27:27" (1/1) ... [2023-12-02 20:27:27,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:27:27" (1/1) ... [2023-12-02 20:27:27,814 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:27:27" (1/1) ... [2023-12-02 20:27:27,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:27:27" (1/1) ... [2023-12-02 20:27:27,821 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:27:27" (1/1) ... [2023-12-02 20:27:27,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:27:27" (1/1) ... [2023-12-02 20:27:27,829 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 20:27:27,830 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 20:27:27,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 20:27:27,830 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 20:27:27,831 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:27:27" (1/1) ... [2023-12-02 20:27:27,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:27:27,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:27:27,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 20:27:27,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 20:27:27,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 20:27:27,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 20:27:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 20:27:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 20:27:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 20:27:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 20:27:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 20:27:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 20:27:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 20:27:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 20:27:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 20:27:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-12-02 20:27:27,941 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-12-02 20:27:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 20:27:27,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 20:27:27,943 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 20:27:28,092 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 20:27:28,094 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 20:27:28,468 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 20:27:28,489 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 20:27:28,490 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 20:27:28,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:27:28 BoogieIcfgContainer [2023-12-02 20:27:28,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 20:27:28,495 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 20:27:28,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 20:27:28,499 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 20:27:28,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:27:26" (1/3) ... [2023-12-02 20:27:28,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c401bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:27:28, skipping insertion in model container [2023-12-02 20:27:28,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:27:27" (2/3) ... [2023-12-02 20:27:28,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c401bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:27:28, skipping insertion in model container [2023-12-02 20:27:28,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:27:28" (3/3) ... [2023-12-02 20:27:28,503 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-binomial-race.i [2023-12-02 20:27:28,511 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 20:27:28,520 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 20:27:28,521 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-12-02 20:27:28,521 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 20:27:28,627 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-12-02 20:27:28,684 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:27:28,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-12-02 20:27:28,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:27:28,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-12-02 20:27:28,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-12-02 20:27:28,734 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-12-02 20:27:28,746 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread1of1ForFork0 ======== [2023-12-02 20:27:28,753 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;@33587932, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:27:28,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-02 20:27:28,996 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:27:29,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:29,002 INFO L85 PathProgramCache]: Analyzing trace with hash -589813167, now seen corresponding path program 1 times [2023-12-02 20:27:29,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:29,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100651859] [2023-12-02 20:27:29,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:29,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:27:29,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:29,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100651859] [2023-12-02 20:27:29,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100651859] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:27:29,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:27:29,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:27:29,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630845891] [2023-12-02 20:27:29,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:29,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 20:27:29,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:29,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 20:27:29,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 20:27:29,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:29,319 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:29,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:29,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:29,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:29,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 20:27:29,354 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:27:29,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:29,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1938478496, now seen corresponding path program 1 times [2023-12-02 20:27:29,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:29,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095995229] [2023-12-02 20:27:29,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:29,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:27:29,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:29,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095995229] [2023-12-02 20:27:29,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095995229] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:27:29,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:27:29,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:27:29,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997219397] [2023-12-02 20:27:29,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:29,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:27:29,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:29,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:27:29,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:27:29,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:29,545 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:29,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.0) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:29,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:29,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:29,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:29,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:29,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 20:27:29,665 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:27:29,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:29,666 INFO L85 PathProgramCache]: Analyzing trace with hash 373110652, now seen corresponding path program 1 times [2023-12-02 20:27:29,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:29,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983154294] [2023-12-02 20:27:29,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:29,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:29,711 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:27:29,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [88165027] [2023-12-02 20:27:29,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:29,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:27:29,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:27:29,734 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:27:29,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 20:27:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:29,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 20:27:29,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:27:29,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:27:29,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:27:29,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:29,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983154294] [2023-12-02 20:27:29,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:27:29,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88165027] [2023-12-02 20:27:29,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88165027] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:27:29,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:27:29,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:27:29,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068344707] [2023-12-02 20:27:29,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:29,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:27:29,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:29,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:27:29,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:27:29,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:29,931 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:29,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 43.5) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:29,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:29,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:29,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:30,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:30,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:30,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:30,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-02 20:27:30,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-12-02 20:27:30,225 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:27:30,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:30,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1375615751, now seen corresponding path program 1 times [2023-12-02 20:27:30,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:30,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783498435] [2023-12-02 20:27:30,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:30,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:30,266 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:27:30,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2003426382] [2023-12-02 20:27:30,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:30,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:27:30,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:27:30,269 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:27:30,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 20:27:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:30,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 20:27:30,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:27:30,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 20:27:30,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-02 20:27:30,735 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:27:30,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-12-02 20:27:30,782 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:27:30,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-12-02 20:27:30,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:27:30,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:27:30,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:30,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783498435] [2023-12-02 20:27:30,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:27:30,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003426382] [2023-12-02 20:27:30,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003426382] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:27:30,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:27:30,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 20:27:30,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18768098] [2023-12-02 20:27:30,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:30,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 20:27:30,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:30,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 20:27:30,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-02 20:27:30,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:30,824 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:30,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:30,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:30,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:30,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:30,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:27:31,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 20:27:31,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:27:31,377 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr3ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:27:31,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:31,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1659480163, now seen corresponding path program 1 times [2023-12-02 20:27:31,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:31,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629089124] [2023-12-02 20:27:31,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:31,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:31,413 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:27:31,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [726292575] [2023-12-02 20:27:31,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:31,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:27:31,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:27:31,415 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:27:31,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 20:27:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:31,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 20:27:31,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:27:31,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 42 [2023-12-02 20:27:31,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-12-02 20:27:31,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2023-12-02 20:27:31,682 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 96 treesize of output 80 [2023-12-02 20:27:31,691 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:27:31,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 154 [2023-12-02 20:27:31,745 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:27:31,747 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:27:31,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 76 treesize of output 30 [2023-12-02 20:27:31,874 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 124 treesize of output 104 [2023-12-02 20:27:31,885 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:27:31,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 208 [2023-12-02 20:27:32,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 72 treesize of output 51 [2023-12-02 20:27:32,109 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 152 treesize of output 128 [2023-12-02 20:27:32,123 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:27:32,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 128 treesize of output 262 [2023-12-02 20:27:32,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 69 [2023-12-02 20:27:32,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:27:32,342 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:27:32,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:32,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629089124] [2023-12-02 20:27:32,343 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:27:32,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726292575] [2023-12-02 20:27:32,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726292575] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:27:32,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:27:32,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 20:27:32,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463079847] [2023-12-02 20:27:32,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:32,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 20:27:32,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:32,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 20:27:32,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 20:27:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:32,348 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:32,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:32,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:32,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:32,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:32,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:27:32,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:34,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:34,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:34,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:34,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:27:34,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:27:34,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-12-02 20:27:34,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2023-12-02 20:27:34,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-12-02 20:27:34,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-12-02 20:27:34,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 20:27:34,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:27:34,616 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-02 20:27:34,617 INFO L307 ceAbstractionStarter]: Result for error location threadThread1of1ForFork0 was SAFE,SAFE,SAFE,SAFE (1/2) [2023-12-02 20:27:34,624 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:27:34,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-12-02 20:27:34,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:27:34,626 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-12-02 20:27:34,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2023-12-02 20:27:34,638 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-12-02 20:27:34,638 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-12-02 20:27:34,639 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;@33587932, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:27:34,639 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-12-02 20:27:34,667 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-12-02 20:27:34,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:34,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1697247302, now seen corresponding path program 1 times [2023-12-02 20:27:34,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:34,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889290302] [2023-12-02 20:27:34,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:34,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:34,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:27:34,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:34,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889290302] [2023-12-02 20:27:34,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889290302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:27:34,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:27:34,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:27:34,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193389924] [2023-12-02 20:27:34,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:34,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:27:34,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:34,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:27:34,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:27:34,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:34,701 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:34,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:34,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:34,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:34,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 20:27:34,715 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-12-02 20:27:34,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:34,715 INFO L85 PathProgramCache]: Analyzing trace with hash -481627170, now seen corresponding path program 1 times [2023-12-02 20:27:34,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:34,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199420011] [2023-12-02 20:27:34,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:34,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:34,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:27:34,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:34,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199420011] [2023-12-02 20:27:34,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199420011] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:27:34,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:27:34,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:27:34,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060679401] [2023-12-02 20:27:34,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:34,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:27:34,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:34,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:27:34,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:27:34,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:34,748 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:34,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:34,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:34,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:34,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:34,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:34,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 20:27:34,767 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-12-02 20:27:34,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:34,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1521003898, now seen corresponding path program 1 times [2023-12-02 20:27:34,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:34,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304493902] [2023-12-02 20:27:34,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:34,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:35,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:27:35,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:35,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304493902] [2023-12-02 20:27:35,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304493902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:27:35,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:27:35,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 20:27:35,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561315680] [2023-12-02 20:27:35,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:35,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 20:27:35,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:35,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 20:27:35,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 20:27:35,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:35,206 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:35,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:35,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:35,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:35,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:35,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:35,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:35,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:27:35,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 20:27:35,250 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-12-02 20:27:35,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:35,251 INFO L85 PathProgramCache]: Analyzing trace with hash -310557650, now seen corresponding path program 1 times [2023-12-02 20:27:35,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:35,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167008578] [2023-12-02 20:27:35,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:35,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:35,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:27:35,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:35,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167008578] [2023-12-02 20:27:35,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167008578] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:27:35,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:27:35,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 20:27:35,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329228884] [2023-12-02 20:27:35,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:35,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 20:27:35,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:35,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 20:27:35,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 20:27:35,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:35,618 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:35,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:35,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:35,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:35,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:27:35,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:35,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:35,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:35,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:27:35,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:27:35,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 20:27:35,759 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-12-02 20:27:35,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:35,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1149405514, now seen corresponding path program 1 times [2023-12-02 20:27:35,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:35,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350758480] [2023-12-02 20:27:35,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:35,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 20:27:35,793 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 20:27:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 20:27:35,840 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-02 20:27:35,841 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 20:27:35,841 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2023-12-02 20:27:35,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-12-02 20:27:35,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2023-12-02 20:27:35,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-12-02 20:27:35,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-12-02 20:27:35,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-12-02 20:27:35,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-12-02 20:27:35,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-12-02 20:27:35,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-12-02 20:27:35,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-12-02 20:27:35,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-12-02 20:27:35,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 20:27:35,850 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-02 20:27:35,850 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (2/2) [2023-12-02 20:27:35,851 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-02 20:27:35,851 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-12-02 20:27:35,900 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-12-02 20:27:35,905 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:27:35,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-12-02 20:27:35,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:27:35,907 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-12-02 20:27:35,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2023-12-02 20:27:35,915 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-12-02 20:27:35,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread1of2ForFork0 ======== [2023-12-02 20:27:35,916 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;@33587932, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:27:35,916 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-02 20:27:36,034 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:27:36,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:36,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1395038901, now seen corresponding path program 1 times [2023-12-02 20:27:36,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:36,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110948075] [2023-12-02 20:27:36,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:36,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:36,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:27:36,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:36,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110948075] [2023-12-02 20:27:36,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110948075] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:27:36,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:27:36,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:27:36,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147672121] [2023-12-02 20:27:36,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:36,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 20:27:36,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:36,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 20:27:36,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 20:27:36,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:36,072 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:36,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:36,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:36,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:36,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 20:27:36,087 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:27:36,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:36,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2001015895, now seen corresponding path program 1 times [2023-12-02 20:27:36,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:36,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889916206] [2023-12-02 20:27:36,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:36,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:36,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:27:36,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:36,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889916206] [2023-12-02 20:27:36,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889916206] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:27:36,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:27:36,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:27:36,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717534716] [2023-12-02 20:27:36,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:36,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:27:36,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:36,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:27:36,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:27:36,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:36,145 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:36,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.0) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:36,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:36,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:36,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:36,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:36,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 20:27:36,643 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:27:36,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:36,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1728475189, now seen corresponding path program 1 times [2023-12-02 20:27:36,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:36,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324313964] [2023-12-02 20:27:36,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:36,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:36,707 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:27:36,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1351673731] [2023-12-02 20:27:36,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:36,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:27:36,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:27:36,717 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:27:36,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 20:27:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:37,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 20:27:37,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:27:37,147 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2023-12-02 20:27:37,147 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:27:37,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:37,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324313964] [2023-12-02 20:27:37,147 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:27:37,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351673731] [2023-12-02 20:27:37,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351673731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:27:37,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:27:37,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:27:37,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656074120] [2023-12-02 20:27:37,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:37,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:27:37,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:37,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:27:37,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:27:37,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:37,151 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:37,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 74.0) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:37,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:37,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:37,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:37,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:37,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:37,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:37,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 20:27:37,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:27:37,527 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:27:37,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:37,528 INFO L85 PathProgramCache]: Analyzing trace with hash 527358363, now seen corresponding path program 1 times [2023-12-02 20:27:37,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:37,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276924607] [2023-12-02 20:27:37,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:37,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:37,593 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:27:37,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1029275657] [2023-12-02 20:27:37,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:37,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:27:37,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:27:37,595 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:27:37,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 20:27:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:37,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 20:27:38,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:27:38,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 20:27:38,563 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:27:38,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 45 [2023-12-02 20:27:38,581 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2023-12-02 20:27:38,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:27:38,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:38,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276924607] [2023-12-02 20:27:38,582 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:27:38,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029275657] [2023-12-02 20:27:38,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029275657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:27:38,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:27:38,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 20:27:38,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125400130] [2023-12-02 20:27:38,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:38,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 20:27:38,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:38,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 20:27:38,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-02 20:27:38,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:38,587 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:38,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:38,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:38,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:38,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:38,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:39,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:39,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:39,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:27:39,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-02 20:27:39,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:27:39,479 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:27:39,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:39,479 INFO L85 PathProgramCache]: Analyzing trace with hash 937787199, now seen corresponding path program 1 times [2023-12-02 20:27:39,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:39,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674281064] [2023-12-02 20:27:39,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:39,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:39,541 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:27:39,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1420813488] [2023-12-02 20:27:39,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:39,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:27:39,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:27:39,543 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:27:39,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 20:27:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:39,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 20:27:39,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:27:40,419 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 370 proven. 39 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-02 20:27:40,419 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:27:40,984 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-02 20:27:40,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:40,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674281064] [2023-12-02 20:27:40,985 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:27:40,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420813488] [2023-12-02 20:27:40,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420813488] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 20:27:40,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 20:27:40,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 21 [2023-12-02 20:27:40,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525131239] [2023-12-02 20:27:40,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:40,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 20:27:40,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:40,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 20:27:40,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2023-12-02 20:27:40,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:40,989 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:40,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 25.46153846153846) internal successors, (331), 13 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:40,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:40,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:40,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:40,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:27:40,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:43,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:43,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:43,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:43,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:27:43,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:27:43,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 20:27:43,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-02 20:27:43,241 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:27:43,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:43,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1992377504, now seen corresponding path program 1 times [2023-12-02 20:27:43,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:43,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497888946] [2023-12-02 20:27:43,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:43,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:43,280 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:27:43,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [781090095] [2023-12-02 20:27:43,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:43,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:27:43,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:27:43,282 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:27:43,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 20:27:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:43,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 20:27:43,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:27:43,997 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 155 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 20:27:43,998 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:27:44,378 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 20:27:44,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:44,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497888946] [2023-12-02 20:27:44,379 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:27:44,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781090095] [2023-12-02 20:27:44,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781090095] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 20:27:44,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 20:27:44,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 17 [2023-12-02 20:27:44,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682593565] [2023-12-02 20:27:44,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:44,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 20:27:44,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:44,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 20:27:44,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2023-12-02 20:27:44,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:44,383 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:44,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:44,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:44,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:44,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:44,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:27:44,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:27:44,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:44,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:44,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:44,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:44,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:27:44,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:27:44,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:27:44,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 20:27:45,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-02 20:27:45,164 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:27:45,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:45,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1737651112, now seen corresponding path program 1 times [2023-12-02 20:27:45,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:45,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828236025] [2023-12-02 20:27:45,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:45,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:45,202 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:27:45,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [56778775] [2023-12-02 20:27:45,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:45,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:27:45,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:27:45,204 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:27:45,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 20:27:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:45,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 20:27:45,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:27:45,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 20:27:45,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-02 20:27:45,739 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:27:45,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-12-02 20:27:45,770 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:27:45,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-12-02 20:27:45,796 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-02 20:27:45,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:27:45,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:45,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828236025] [2023-12-02 20:27:45,796 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:27:45,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56778775] [2023-12-02 20:27:45,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56778775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:27:45,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:27:45,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 20:27:45,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425854782] [2023-12-02 20:27:45,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:45,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 20:27:45,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:45,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 20:27:45,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-02 20:27:45,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:45,800 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:45,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 24.833333333333332) internal successors, (149), 7 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:45,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:45,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:45,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:45,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:27:45,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:27:45,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:27:45,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:46,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:46,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:46,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:46,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:27:46,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:27:46,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:27:46,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:27:46,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 20:27:46,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-02 20:27:46,505 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr3ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:27:46,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:46,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1837547884, now seen corresponding path program 1 times [2023-12-02 20:27:46,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:46,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692400401] [2023-12-02 20:27:46,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:46,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:46,538 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:27:46,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2014848866] [2023-12-02 20:27:46,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:46,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:27:46,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:27:46,540 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:27:46,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 20:27:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:46,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 20:27:46,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:27:46,869 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 55 treesize of output 42 [2023-12-02 20:27:46,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2023-12-02 20:27:46,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-12-02 20:27:46,910 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 96 treesize of output 80 [2023-12-02 20:27:46,917 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:27:46,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 154 [2023-12-02 20:27:46,960 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:27:46,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 35 [2023-12-02 20:27:47,012 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 124 treesize of output 104 [2023-12-02 20:27:47,020 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:27:47,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 208 [2023-12-02 20:27:47,050 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:27:47,053 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:27:47,059 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:27:47,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 57 [2023-12-02 20:27:47,186 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 152 treesize of output 128 [2023-12-02 20:27:47,201 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:27:47,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 128 treesize of output 262 [2023-12-02 20:27:47,314 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:27:47,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 68 [2023-12-02 20:27:47,388 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-02 20:27:47,388 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:27:47,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:47,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692400401] [2023-12-02 20:27:47,389 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:27:47,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014848866] [2023-12-02 20:27:47,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014848866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:27:47,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:27:47,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 20:27:47,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067298254] [2023-12-02 20:27:47,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:27:47,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 20:27:47,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:47,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 20:27:47,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 20:27:47,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:47,392 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:47,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:47,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:47,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:47,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:47,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:27:47,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:27:47,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:27:47,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:27:47,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:27:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:27:54,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:27:54,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:27:54,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:27:54,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 20:27:54,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-02 20:27:54,921 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:27:54,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:27:54,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1244057403, now seen corresponding path program 1 times [2023-12-02 20:27:54,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:27:54,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006782537] [2023-12-02 20:27:54,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:54,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:27:54,959 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:27:54,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [696374614] [2023-12-02 20:27:54,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:27:54,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:27:54,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:27:54,961 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:27:54,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 20:27:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:27:55,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 20:27:55,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:27:55,678 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 50 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 20:27:55,679 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:27:56,189 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 49 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 20:27:56,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:27:56,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006782537] [2023-12-02 20:27:56,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:27:56,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696374614] [2023-12-02 20:27:56,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696374614] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:27:56,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:27:56,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-12-02 20:27:56,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650622288] [2023-12-02 20:27:56,191 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:27:56,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-02 20:27:56,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:27:56,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-02 20:27:56,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2023-12-02 20:27:56,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:56,194 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:56,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 15.1) internal successors, (302), 20 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:27:56,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:56,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:56,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:56,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:27:56,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:27:56,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:27:56,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:27:56,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:27:56,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:00,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:00,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:00,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:28:00,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:28:00,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:28:00,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:28:00,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:28:00,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:28:00,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-02 20:28:00,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:28:00,568 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:28:00,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:28:00,569 INFO L85 PathProgramCache]: Analyzing trace with hash 53371974, now seen corresponding path program 1 times [2023-12-02 20:28:00,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:28:00,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269348843] [2023-12-02 20:28:00,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:28:00,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:28:00,606 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:28:00,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [569122158] [2023-12-02 20:28:00,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:28:00,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:28:00,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:28:00,608 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:28:00,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-02 20:28:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:28:00,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 20:28:00,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:28:01,090 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-02 20:28:01,090 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:28:01,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:28:01,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269348843] [2023-12-02 20:28:01,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:28:01,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569122158] [2023-12-02 20:28:01,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569122158] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:28:01,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:28:01,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 20:28:01,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283790767] [2023-12-02 20:28:01,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:28:01,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 20:28:01,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:28:01,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 20:28:01,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 20:28:01,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:01,094 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:28:01,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.88888888888889) internal successors, (197), 9 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:28:01,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:01,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:01,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:01,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:28:01,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:28:01,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:28:01,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:28:01,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:28:01,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:28:01,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:06,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:06,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:06,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:06,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:28:06,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:28:06,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:28:06,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:28:06,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:28:06,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:28:06,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:28:06,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-12-02 20:28:07,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:28:07,058 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:28:07,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:28:07,058 INFO L85 PathProgramCache]: Analyzing trace with hash 798092702, now seen corresponding path program 1 times [2023-12-02 20:28:07,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:28:07,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688559005] [2023-12-02 20:28:07,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:28:07,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:28:07,093 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:28:07,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [778213436] [2023-12-02 20:28:07,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:28:07,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:28:07,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:28:07,095 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:28:07,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-02 20:28:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:28:07,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 20:28:07,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:28:07,720 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-02 20:28:07,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:28:07,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:28:07,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688559005] [2023-12-02 20:28:07,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:28:07,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778213436] [2023-12-02 20:28:07,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778213436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:28:07,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:28:07,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 20:28:07,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887507057] [2023-12-02 20:28:07,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:28:07,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 20:28:07,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:28:07,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 20:28:07,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 20:28:07,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:07,724 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:28:07,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:28:07,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:07,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:07,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:07,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:28:07,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:28:07,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:28:07,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:28:07,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:28:07,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:28:07,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:28:07,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:28:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:28:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:28:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:28:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:28:12,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:28:12,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:28:12,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:28:12,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-02 20:28:12,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-12-02 20:28:12,511 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:28:12,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:28:12,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1992817562, now seen corresponding path program 1 times [2023-12-02 20:28:12,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:28:12,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461595441] [2023-12-02 20:28:12,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:28:12,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:28:12,550 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:28:12,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2060564496] [2023-12-02 20:28:12,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:28:12,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:28:12,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:28:12,552 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:28:12,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-02 20:28:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:28:12,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 20:28:12,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:28:13,159 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 59 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 20:28:13,159 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:28:13,545 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 60 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 20:28:13,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:28:13,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461595441] [2023-12-02 20:28:13,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:28:13,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060564496] [2023-12-02 20:28:13,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060564496] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:28:13,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:28:13,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-12-02 20:28:13,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564954264] [2023-12-02 20:28:13,546 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:28:13,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-02 20:28:13,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:28:13,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-02 20:28:13,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2023-12-02 20:28:13,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:13,549 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:28:13,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 15.8) internal successors, (316), 20 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:28:13,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:13,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:13,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:13,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:28:13,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:28:13,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:28:13,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:28:13,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:28:13,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:28:13,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:28:13,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:28:13,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:18,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:18,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:18,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:18,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:28:18,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:28:18,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:28:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:28:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:28:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:28:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:28:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:28:18,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-02 20:28:18,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-02 20:28:18,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-12-02 20:28:18,843 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:28:18,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:28:18,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1160208766, now seen corresponding path program 1 times [2023-12-02 20:28:18,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:28:18,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632390174] [2023-12-02 20:28:18,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:28:18,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:28:18,879 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:28:18,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [842340624] [2023-12-02 20:28:18,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:28:18,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:28:18,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:28:18,881 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:28:18,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-02 20:28:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:28:19,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 20:28:19,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:28:19,369 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 38 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-02 20:28:19,369 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:28:19,386 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-02 20:28:19,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:28:19,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632390174] [2023-12-02 20:28:19,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:28:19,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842340624] [2023-12-02 20:28:19,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842340624] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 20:28:19,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 20:28:19,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-12-02 20:28:19,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453182309] [2023-12-02 20:28:19,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:28:19,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:28:19,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:28:19,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:28:19,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-02 20:28:19,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:19,392 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:28:19,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:28:19,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:19,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:19,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:19,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:28:19,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:28:19,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:28:19,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:28:19,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:28:19,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:28:19,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:28:19,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:28:19,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2023-12-02 20:28:19,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:23,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:23,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:28:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:28:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:28:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:28:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:28:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:28:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:28:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:28:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-02 20:28:23,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:23,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-12-02 20:28:24,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-12-02 20:28:24,131 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:28:24,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:28:24,131 INFO L85 PathProgramCache]: Analyzing trace with hash -9238693, now seen corresponding path program 1 times [2023-12-02 20:28:24,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:28:24,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139828010] [2023-12-02 20:28:24,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:28:24,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:28:24,161 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:28:24,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1369257342] [2023-12-02 20:28:24,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:28:24,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:28:24,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:28:24,163 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:28:24,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-02 20:28:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:28:24,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 76 conjunts are in the unsatisfiable core [2023-12-02 20:28:24,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:28:24,707 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-02 20:28:24,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-12-02 20:28:24,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 20:28:24,725 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 1 [2023-12-02 20:28:24,936 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 20:28:24,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 38 [2023-12-02 20:28:24,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-12-02 20:28:25,275 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-02 20:28:25,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 38 [2023-12-02 20:28:25,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-12-02 20:28:25,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2023-12-02 20:28:25,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 20:28:26,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 53 [2023-12-02 20:28:26,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2023-12-02 20:28:26,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 23 [2023-12-02 20:28:27,028 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 5 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:28:27,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:28:28,296 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:28:28,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 103 treesize of output 94 [2023-12-02 20:28:32,548 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:28:32,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:28:32,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139828010] [2023-12-02 20:28:32,548 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:28:32,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369257342] [2023-12-02 20:28:32,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369257342] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:28:32,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:28:32,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 28] total 58 [2023-12-02 20:28:32,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863236162] [2023-12-02 20:28:32,549 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:28:32,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-12-02 20:28:32,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:28:32,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-12-02 20:28:32,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=3005, Unknown=0, NotChecked=0, Total=3306 [2023-12-02 20:28:32,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:32,554 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:28:32,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 6.9655172413793105) internal successors, (404), 58 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:28:32,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:28:32,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:32,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:32,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:28:32,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-12-02 20:28:32,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:28:32,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:28:32,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:28:32,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:28:32,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:28:32,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:28:32,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2023-12-02 20:28:32,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:28:32,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:30:13,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:30:13,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:30:13,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:30:13,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:30:13,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:30:13,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:30:13,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:30:13,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:30:13,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:30:13,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:30:13,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:30:13,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-02 20:30:13,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:30:13,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 311 states. [2023-12-02 20:30:13,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-12-02 20:30:13,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-12-02 20:30:13,544 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:30:13,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:30:13,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1587602264, now seen corresponding path program 1 times [2023-12-02 20:30:13,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:30:13,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491784375] [2023-12-02 20:30:13,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:30:13,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:30:13,630 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:30:13,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [708978413] [2023-12-02 20:30:13,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:30:13,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:30:13,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:30:13,633 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:30:13,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-02 20:30:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:30:14,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 2408 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 20:30:14,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:30:15,394 INFO L134 CoverageAnalysis]: Checked inductivity of 2912 backedges. 2247 proven. 651 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 20:30:15,394 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:30:16,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2912 backedges. 2881 proven. 17 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 20:30:16,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:30:16,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491784375] [2023-12-02 20:30:16,685 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:30:16,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708978413] [2023-12-02 20:30:16,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708978413] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:30:16,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:30:16,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 53 [2023-12-02 20:30:16,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110755313] [2023-12-02 20:30:16,687 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:30:16,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-12-02 20:30:16,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:30:16,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-12-02 20:30:16,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=541, Invalid=2215, Unknown=0, NotChecked=0, Total=2756 [2023-12-02 20:30:16,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:30:16,696 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:30:16,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 30.358490566037737) internal successors, (1609), 53 states have internal predecessors, (1609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:30:16,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:30:16,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:30:16,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:30:16,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:30:16,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:30:16,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:30:16,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:30:16,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:30:16,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:30:16,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:30:16,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:30:16,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2023-12-02 20:30:16,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:30:16,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 311 states. [2023-12-02 20:30:16,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:30:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:30:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:30:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:30:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:30:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:30:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 20:30:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:30:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:30:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:30:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:30:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:30:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-02 20:30:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:30:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2023-12-02 20:30:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-02 20:30:28,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-02 20:30:28,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-12-02 20:30:28,957 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:30:28,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:30:28,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1520983067, now seen corresponding path program 1 times [2023-12-02 20:30:28,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:30:28,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690247889] [2023-12-02 20:30:28,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:30:28,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:30:29,003 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:30:29,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829884299] [2023-12-02 20:30:29,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:30:29,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:30:29,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:30:29,005 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:30:29,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-02 20:30:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:30:29,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 20:30:29,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:30:29,777 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 152 proven. 24 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 20:30:29,778 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:30:30,253 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 159 proven. 17 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 20:30:30,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:30:30,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690247889] [2023-12-02 20:30:30,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:30:30,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829884299] [2023-12-02 20:30:30,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829884299] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:30:30,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:30:30,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2023-12-02 20:30:30,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611546364] [2023-12-02 20:30:30,255 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:30:30,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-02 20:30:30,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:30:30,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-02 20:30:30,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2023-12-02 20:30:30,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:30:30,259 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:30:30,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 18.047619047619047) internal successors, (379), 21 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:30:30,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:30:30,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:30:30,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:30:30,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:30:30,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:30:30,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-12-02 20:30:30,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:30:30,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:30:30,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:30:30,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:30:30,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:30:30,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2023-12-02 20:30:30,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:30:30,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 314 states. [2023-12-02 20:30:30,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-12-02 20:30:30,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:31:05,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:31:05,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:31:05,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:31:05,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:31:05,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:31:05,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 20:31:05,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:31:05,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:31:05,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:31:05,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:31:05,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:31:05,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-02 20:31:05,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:31:05,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 338 states. [2023-12-02 20:31:05,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-12-02 20:31:05,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-02 20:31:05,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-12-02 20:31:06,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-12-02 20:31:06,118 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:31:06,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:31:06,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1829196231, now seen corresponding path program 2 times [2023-12-02 20:31:06,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:31:06,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344463217] [2023-12-02 20:31:06,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:31:06,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:31:06,186 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:31:06,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936116511] [2023-12-02 20:31:06,187 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 20:31:06,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:31:06,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:31:06,188 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:31:06,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-02 20:31:06,808 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 20:31:06,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:31:06,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 20:31:06,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:31:07,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 684 proven. 8 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2023-12-02 20:31:07,281 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:31:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 606 proven. 86 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2023-12-02 20:31:07,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:31:07,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344463217] [2023-12-02 20:31:07,649 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:31:07,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936116511] [2023-12-02 20:31:07,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936116511] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:31:07,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:31:07,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2023-12-02 20:31:07,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55568020] [2023-12-02 20:31:07,651 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:31:07,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-02 20:31:07,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:31:07,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-02 20:31:07,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-12-02 20:31:07,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:31:07,654 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:31:07,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 27.75) internal successors, (444), 16 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:31:07,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:31:07,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:31:07,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:31:07,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:31:07,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:31:07,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-12-02 20:31:07,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:31:07,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:31:07,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:31:07,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:31:07,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:31:07,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-12-02 20:31:07,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:31:07,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 338 states. [2023-12-02 20:31:07,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2023-12-02 20:31:07,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2023-12-02 20:31:07,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:32:14,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:32:14,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:32:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:32:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:32:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:32:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 20:32:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:32:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:32:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:32:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:32:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:32:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-02 20:32:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:32:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 344 states. [2023-12-02 20:32:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-12-02 20:32:14,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-02 20:32:14,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-02 20:32:14,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-12-02 20:32:14,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-02 20:32:14,809 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:32:14,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:32:14,809 INFO L85 PathProgramCache]: Analyzing trace with hash -601162422, now seen corresponding path program 1 times [2023-12-02 20:32:14,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:32:14,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374580924] [2023-12-02 20:32:14,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:32:14,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:32:15,093 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:32:15,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1873884225] [2023-12-02 20:32:15,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:32:15,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:32:15,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:32:15,095 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:32:15,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-02 20:32:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:32:16,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 2854 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 20:32:16,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:32:16,989 INFO L134 CoverageAnalysis]: Checked inductivity of 4131 backedges. 2342 proven. 244 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2023-12-02 20:32:16,989 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:32:18,091 INFO L134 CoverageAnalysis]: Checked inductivity of 4131 backedges. 2586 proven. 0 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2023-12-02 20:32:18,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:32:18,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374580924] [2023-12-02 20:32:18,091 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:32:18,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873884225] [2023-12-02 20:32:18,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873884225] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 20:32:18,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 20:32:18,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [18] total 34 [2023-12-02 20:32:18,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526438949] [2023-12-02 20:32:18,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:32:18,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-02 20:32:18,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:32:18,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-02 20:32:18,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=884, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 20:32:18,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:32:18,097 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:32:18,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 35.388888888888886) internal successors, (637), 18 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:32:18,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:32:18,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:32:18,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:32:18,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:32:18,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:32:18,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-12-02 20:32:18,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:32:18,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:32:18,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:32:18,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:32:18,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:32:18,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-12-02 20:32:18,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:32:18,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 344 states. [2023-12-02 20:32:18,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2023-12-02 20:32:18,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-12-02 20:32:18,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-12-02 20:32:18,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:33:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:33:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:33:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:33:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:33:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:33:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 20:33:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:33:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:33:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:33:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:33:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:33:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-02 20:33:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:33:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 356 states. [2023-12-02 20:33:02,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-12-02 20:33:02,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-02 20:33:02,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-02 20:33:02,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:33:02,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-12-02 20:33:02,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-12-02 20:33:02,410 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:33:02,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:33:02,411 INFO L85 PathProgramCache]: Analyzing trace with hash 529063188, now seen corresponding path program 1 times [2023-12-02 20:33:02,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:33:02,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954506023] [2023-12-02 20:33:02,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:33:02,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:33:02,489 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:33:02,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2083596761] [2023-12-02 20:33:02,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:33:02,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:33:02,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:33:02,491 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:33:02,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-02 20:33:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:33:03,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 2415 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 20:33:03,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:33:03,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2995 backedges. 1193 proven. 6 refuted. 0 times theorem prover too weak. 1796 trivial. 0 not checked. [2023-12-02 20:33:03,355 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:33:03,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2995 backedges. 1283 proven. 56 refuted. 0 times theorem prover too weak. 1656 trivial. 0 not checked. [2023-12-02 20:33:03,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:33:03,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954506023] [2023-12-02 20:33:03,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:33:03,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083596761] [2023-12-02 20:33:03,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083596761] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:33:03,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:33:03,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9] total 12 [2023-12-02 20:33:03,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585619170] [2023-12-02 20:33:03,659 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:33:03,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 20:33:03,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:33:03,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 20:33:03,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-02 20:33:03,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:33:03,662 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:33:03,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 48.25) internal successors, (579), 12 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:33:03,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:33:03,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:33:03,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:33:03,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:33:03,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:33:03,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-12-02 20:33:03,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:33:03,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:33:03,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:33:03,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:33:03,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:33:03,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-12-02 20:33:03,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:33:03,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 356 states. [2023-12-02 20:33:03,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2023-12-02 20:33:03,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-12-02 20:33:03,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-12-02 20:33:03,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:33:03,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:33:36,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:33:36,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:33:36,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:33:36,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:33:36,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:33:36,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 20:33:36,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:33:36,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:33:36,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:33:36,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:33:36,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:33:36,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-02 20:33:36,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:33:36,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 356 states. [2023-12-02 20:33:36,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-12-02 20:33:36,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-02 20:33:36,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-02 20:33:36,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:33:36,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:33:36,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-12-02 20:33:36,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-12-02 20:33:36,783 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:33:36,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:33:36,784 INFO L85 PathProgramCache]: Analyzing trace with hash -340274776, now seen corresponding path program 1 times [2023-12-02 20:33:36,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:33:36,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260493071] [2023-12-02 20:33:36,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:33:36,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:33:36,908 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:33:36,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2084142688] [2023-12-02 20:33:36,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:33:36,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:33:36,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:33:36,910 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:33:36,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-02 20:33:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:33:37,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 4025 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 20:33:38,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:33:38,457 INFO L134 CoverageAnalysis]: Checked inductivity of 10438 backedges. 6521 proven. 505 refuted. 0 times theorem prover too weak. 3412 trivial. 0 not checked. [2023-12-02 20:33:38,457 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:33:38,879 INFO L134 CoverageAnalysis]: Checked inductivity of 10438 backedges. 6633 proven. 24 refuted. 0 times theorem prover too weak. 3781 trivial. 0 not checked. [2023-12-02 20:33:38,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:33:38,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260493071] [2023-12-02 20:33:38,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:33:38,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084142688] [2023-12-02 20:33:38,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084142688] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:33:38,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:33:38,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 17 [2023-12-02 20:33:38,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684636162] [2023-12-02 20:33:38,882 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:33:38,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-02 20:33:38,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:33:38,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-02 20:33:38,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2023-12-02 20:33:38,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:33:38,887 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:33:38,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 31.0) internal successors, (527), 17 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:33:38,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:33:38,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:33:38,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:33:38,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:33:38,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:33:38,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-12-02 20:33:38,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:33:38,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:33:38,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:33:38,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:33:38,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:33:38,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-12-02 20:33:38,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:33:38,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 356 states. [2023-12-02 20:33:38,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2023-12-02 20:33:38,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-12-02 20:33:38,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-12-02 20:33:38,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:33:38,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:33:38,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:34:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:34:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:34:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:34:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:34:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:34:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 20:34:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:34:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:34:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:34:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:34:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:34:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-02 20:34:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:34:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 356 states. [2023-12-02 20:34:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-12-02 20:34:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-02 20:34:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-02 20:34:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:34:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:34:13,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-12-02 20:34:13,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-12-02 20:34:13,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:34:13,795 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-12-02 20:34:13,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:34:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1754903492, now seen corresponding path program 1 times [2023-12-02 20:34:13,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:34:13,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830855731] [2023-12-02 20:34:13,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:34:13,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:34:13,898 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 20:34:13,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [609600033] [2023-12-02 20:34:13,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:34:13,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:34:13,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:34:13,900 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:34:13,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b44dc9-dd75-4fba-a527-9783b4c62d69/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-12-02 20:34:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:34:15,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 3044 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 20:34:15,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:34:15,564 INFO L134 CoverageAnalysis]: Checked inductivity of 5240 backedges. 1960 proven. 24 refuted. 0 times theorem prover too weak. 3256 trivial. 0 not checked. [2023-12-02 20:34:15,564 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:34:16,249 INFO L134 CoverageAnalysis]: Checked inductivity of 5240 backedges. 1982 proven. 2 refuted. 0 times theorem prover too weak. 3256 trivial. 0 not checked. [2023-12-02 20:34:16,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:34:16,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830855731] [2023-12-02 20:34:16,250 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 20:34:16,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609600033] [2023-12-02 20:34:16,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609600033] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:34:16,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:34:16,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2023-12-02 20:34:16,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185882782] [2023-12-02 20:34:16,251 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:34:16,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-02 20:34:16,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:34:16,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-02 20:34:16,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2023-12-02 20:34:16,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:34:16,256 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:34:16,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 27.48) internal successors, (687), 25 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:34:16,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:34:16,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 356 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-12-02 20:34:16,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.