./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/reorder_c11_good-50.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-deagle/reorder_c11_good-50.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-DataRace-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S --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 a3b533c73361ee15e10e9133a2147995318be27bb7652d57aee6ac7672acea5b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:08:03,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:08:03,670 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2023-11-24 22:08:03,682 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:08:03,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:08:03,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:08:03,726 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:08:03,727 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:08:03,728 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:08:03,734 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:08:03,735 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:08:03,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:08:03,737 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:08:03,739 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:08:03,740 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:08:03,740 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:08:03,741 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:08:03,741 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:08:03,742 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:08:03,742 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:08:03,743 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:08:03,743 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:08:03,744 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-24 22:08:03,744 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:08:03,745 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:08:03,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:08:03,746 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:08:03,747 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:08:03,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:08:03,748 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-24 22:08:03,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:08:03,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:08:03,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:08:03,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:08:03,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:08:03,751 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 22:08:03,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:08:03,752 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:08:03,752 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-24 22:08:03,753 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-24 22:08:03,753 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:08:03,753 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-24 22:08:03,754 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-24 22:08:03,754 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_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3b533c73361ee15e10e9133a2147995318be27bb7652d57aee6ac7672acea5b [2023-11-24 22:08:04,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:08:04,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:08:04,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:08:04,101 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:08:04,101 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:08:04,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/../../sv-benchmarks/c/pthread-deagle/reorder_c11_good-50.i [2023-11-24 22:08:07,383 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:08:07,701 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:08:07,702 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/sv-benchmarks/c/pthread-deagle/reorder_c11_good-50.i [2023-11-24 22:08:07,726 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/data/03adbf8d4/ada72a7692b84ed497d335d0a12f3459/FLAGf31e84ec7 [2023-11-24 22:08:07,743 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/data/03adbf8d4/ada72a7692b84ed497d335d0a12f3459 [2023-11-24 22:08:07,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:08:07,748 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:08:07,750 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:08:07,750 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:08:07,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:08:07,757 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:08:07" (1/1) ... [2023-11-24 22:08:07,758 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74549f67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:07, skipping insertion in model container [2023-11-24 22:08:07,759 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:08:07" (1/1) ... [2023-11-24 22:08:07,834 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:08:08,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:08:08,307 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:08:08,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:08:08,432 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:08:08,432 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:08:08,441 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:08:08,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:08 WrapperNode [2023-11-24 22:08:08,441 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:08:08,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:08:08,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:08:08,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:08:08,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:08" (1/1) ... [2023-11-24 22:08:08,479 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:08" (1/1) ... [2023-11-24 22:08:08,516 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 168 [2023-11-24 22:08:08,516 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:08:08,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:08:08,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:08:08,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:08:08,534 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:08" (1/1) ... [2023-11-24 22:08:08,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:08" (1/1) ... [2023-11-24 22:08:08,543 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:08" (1/1) ... [2023-11-24 22:08:08,544 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:08" (1/1) ... [2023-11-24 22:08:08,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:08" (1/1) ... [2023-11-24 22:08:08,576 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:08" (1/1) ... [2023-11-24 22:08:08,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:08" (1/1) ... [2023-11-24 22:08:08,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:08" (1/1) ... [2023-11-24 22:08:08,591 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:08:08,592 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:08:08,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:08:08,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:08:08,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:08" (1/1) ... [2023-11-24 22:08:08,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:08:08,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:08,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 22:08:08,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 22:08:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:08:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2023-11-24 22:08:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2023-11-24 22:08:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:08:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-24 22:08:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:08:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:08:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:08:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2023-11-24 22:08:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2023-11-24 22:08:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:08:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-24 22:08:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:08:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:08:08,704 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 22:08:08,854 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:08:08,856 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:08:09,379 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:08:09,432 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:08:09,432 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-24 22:08:09,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:08:09 BoogieIcfgContainer [2023-11-24 22:08:09,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:08:09,439 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 22:08:09,439 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 22:08:09,443 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 22:08:09,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 10:08:07" (1/3) ... [2023-11-24 22:08:09,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f99272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:08:09, skipping insertion in model container [2023-11-24 22:08:09,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:08" (2/3) ... [2023-11-24 22:08:09,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f99272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:08:09, skipping insertion in model container [2023-11-24 22:08:09,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:08:09" (3/3) ... [2023-11-24 22:08:09,448 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_good-50.i [2023-11-24 22:08:09,461 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 22:08:09,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 22:08:09,474 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-24 22:08:09,474 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 22:08:09,557 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-24 22:08:09,611 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:08:09,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 22:08:09,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:09,614 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 22:08:09,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-24 22:08:09,671 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 22:08:09,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of1ForFork1 ======== [2023-11-24 22:08:09,693 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;@52cf49cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:08:09,693 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-24 22:08:09,984 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:09,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:09,991 INFO L85 PathProgramCache]: Analyzing trace with hash -879906111, now seen corresponding path program 1 times [2023-11-24 22:08:10,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:10,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15038821] [2023-11-24 22:08:10,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:10,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:10,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:10,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:10,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15038821] [2023-11-24 22:08:10,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15038821] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:10,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:10,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:08:10,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628818913] [2023-11-24 22:08:10,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:10,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 22:08:10,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:10,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 22:08:10,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 22:08:10,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:10,240 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:10,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:10,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:10,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:10,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 22:08:10,264 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:10,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:10,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1322164226, now seen corresponding path program 1 times [2023-11-24 22:08:10,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:10,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789682287] [2023-11-24 22:08:10,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:10,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:10,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:10,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:10,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789682287] [2023-11-24 22:08:10,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789682287] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:10,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:10,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:08:10,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942015732] [2023-11-24 22:08:10,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:10,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:10,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:10,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:10,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:08:10,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:10,461 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:10,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:10,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:10,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:10,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:10,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:10,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 22:08:10,636 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:10,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:10,636 INFO L85 PathProgramCache]: Analyzing trace with hash 304600882, now seen corresponding path program 1 times [2023-11-24 22:08:10,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:10,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662709973] [2023-11-24 22:08:10,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:10,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:10,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:10,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:10,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662709973] [2023-11-24 22:08:10,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662709973] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:10,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756687024] [2023-11-24 22:08:10,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:10,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:10,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:10,937 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:10,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 22:08:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:11,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:08:11,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:11,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:11,107 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:11,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756687024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:11,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:11,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-24 22:08:11,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462182912] [2023-11-24 22:08:11,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:11,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:11,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:11,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:11,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:08:11,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:11,113 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:11,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:11,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:11,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:11,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:11,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:11,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:11,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:11,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-24 22:08:11,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:11,385 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr1ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:11,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:11,386 INFO L85 PathProgramCache]: Analyzing trace with hash -2145524010, now seen corresponding path program 1 times [2023-11-24 22:08:11,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:11,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295435954] [2023-11-24 22:08:11,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:11,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:11,542 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:11,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:11,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295435954] [2023-11-24 22:08:11,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295435954] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:11,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590513200] [2023-11-24 22:08:11,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:11,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:11,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:11,546 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:11,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 22:08:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:11,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:08:11,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:11,730 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:11,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:11,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590513200] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:11,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:11,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-24 22:08:11,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492087105] [2023-11-24 22:08:11,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:11,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:11,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:11,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:11,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:08:11,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:11,740 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:11,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:11,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:11,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:11,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:11,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:12,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:12,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:12,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:12,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:12,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:12,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-24 22:08:12,272 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting checkThreadErr3ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:12,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:12,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1885038966, now seen corresponding path program 1 times [2023-11-24 22:08:12,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:12,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625293702] [2023-11-24 22:08:12,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:12,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:12,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:12,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:12,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625293702] [2023-11-24 22:08:12,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625293702] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:12,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959204661] [2023-11-24 22:08:12,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:12,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:12,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:12,434 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:12,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 22:08:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:12,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:08:12,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:12,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:12,580 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:12,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959204661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:12,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:12,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-24 22:08:12,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949096362] [2023-11-24 22:08:12,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:12,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:12,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:12,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:12,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:08:12,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:12,589 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:12,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:12,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:12,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:12,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:12,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:12,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:12,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:12,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:12,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:12,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:12,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:12,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:12,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:12,937 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting checkThreadErr3ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:12,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:12,941 INFO L85 PathProgramCache]: Analyzing trace with hash -2129871616, now seen corresponding path program 1 times [2023-11-24 22:08:12,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:12,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061330657] [2023-11-24 22:08:12,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:12,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:13,091 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:13,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:13,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061330657] [2023-11-24 22:08:13,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061330657] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:13,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755775599] [2023-11-24 22:08:13,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:13,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:13,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:13,094 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:13,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-24 22:08:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:13,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:08:13,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:13,258 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:13,258 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:13,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755775599] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:13,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:13,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-24 22:08:13,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546725099] [2023-11-24 22:08:13,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:13,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:13,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:13,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:13,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:08:13,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:13,263 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:13,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:13,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:13,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:13,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:13,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:13,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:13,587 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting checkThreadErr3ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:13,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:13,587 INFO L85 PathProgramCache]: Analyzing trace with hash 141246561, now seen corresponding path program 1 times [2023-11-24 22:08:13,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:13,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267035802] [2023-11-24 22:08:13,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:13,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:13,737 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:13,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:13,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267035802] [2023-11-24 22:08:13,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267035802] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:13,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152924090] [2023-11-24 22:08:13,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:13,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:13,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:13,740 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:13,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-24 22:08:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:13,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:08:13,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:13,882 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:08:13,882 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:13,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152924090] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:13,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:13,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-24 22:08:13,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253572176] [2023-11-24 22:08:13,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:13,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:13,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:13,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:13,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:08:13,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:13,889 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:13,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:13,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:13,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:14,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:14,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:14,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:14,247 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting checkThreadErr3ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:14,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:14,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1748972103, now seen corresponding path program 1 times [2023-11-24 22:08:14,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:14,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828101035] [2023-11-24 22:08:14,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:14,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:14,363 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:14,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:14,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828101035] [2023-11-24 22:08:14,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828101035] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:14,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289903110] [2023-11-24 22:08:14,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:14,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:14,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:14,365 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:14,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-24 22:08:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:14,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:08:14,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:14,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:14,634 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:14,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289903110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:14,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:14,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-11-24 22:08:14,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88476840] [2023-11-24 22:08:14,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:14,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:08:14,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:14,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:08:14,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-24 22:08:14,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:14,639 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:14,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:14,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:14,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:14,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:14,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:14,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:14,989 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting checkThreadErr3ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:14,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:14,989 INFO L85 PathProgramCache]: Analyzing trace with hash -953126883, now seen corresponding path program 2 times [2023-11-24 22:08:14,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:14,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944095153] [2023-11-24 22:08:14,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:14,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:15,121 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:15,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:15,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944095153] [2023-11-24 22:08:15,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944095153] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:15,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462057169] [2023-11-24 22:08:15,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 22:08:15,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:15,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:15,124 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:15,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-24 22:08:15,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-24 22:08:15,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:08:15,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 22:08:15,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:15,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-24 22:08:15,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-24 22:08:15,522 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:08:15,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-24 22:08:15,576 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:08:15,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-24 22:08:15,622 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:08:15,622 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:15,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462057169] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:15,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:15,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2023-11-24 22:08:15,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908258615] [2023-11-24 22:08:15,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:15,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 22:08:15,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:15,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 22:08:15,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-24 22:08:15,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:15,626 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:15,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:15,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:15,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:15,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:15,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:15,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:15,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:15,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:15,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:15,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:15,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:15,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:15,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:15,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:15,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:15,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:15,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:15,994 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting checkThreadErr3ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:15,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:15,995 INFO L85 PathProgramCache]: Analyzing trace with hash 789683452, now seen corresponding path program 1 times [2023-11-24 22:08:15,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:15,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243507224] [2023-11-24 22:08:15,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:15,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:16,107 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:16,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:16,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243507224] [2023-11-24 22:08:16,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243507224] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:16,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436996789] [2023-11-24 22:08:16,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:16,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:16,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:16,110 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:16,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-24 22:08:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:16,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:08:16,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:16,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:16,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436996789] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:16,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:16,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-11-24 22:08:16,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391410769] [2023-11-24 22:08:16,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:16,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 22:08:16,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:16,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 22:08:16,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-24 22:08:16,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:16,339 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:16,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:16,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:16,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:16,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:16,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:16,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:16,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:16,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:16,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:16,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:16,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:16,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:16,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:16,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:16,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:16,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:16,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:16,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:16,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:16,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:16,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:16,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:17,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-24 22:08:17,028 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting checkThreadErr1ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:17,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:17,028 INFO L85 PathProgramCache]: Analyzing trace with hash 11114997, now seen corresponding path program 1 times [2023-11-24 22:08:17,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:17,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132757893] [2023-11-24 22:08:17,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:17,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:17,155 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:17,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:17,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132757893] [2023-11-24 22:08:17,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132757893] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:17,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722820031] [2023-11-24 22:08:17,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:17,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:17,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:17,157 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:17,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-24 22:08:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:17,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:08:17,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:17,334 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:17,335 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:17,397 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:17,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722820031] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:17,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:17,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-24 22:08:17,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862369398] [2023-11-24 22:08:17,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:17,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-24 22:08:17,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:17,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-24 22:08:17,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-24 22:08:17,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:17,406 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:17,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:17,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:17,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:17,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:17,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:17,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:17,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:17,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:17,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:17,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:17,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-11-24 22:08:17,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2023-11-24 22:08:17,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-11-24 22:08:17,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-11-24 22:08:17,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:17,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-24 22:08:17,705 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:08:17,709 INFO L307 ceAbstractionStarter]: Result for error location checkThreadThread1of1ForFork1 was SAFE,SAFE,SAFE,SAFE (1/3) [2023-11-24 22:08:17,721 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:08:17,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 22:08:17,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:17,724 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 22:08:17,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2023-11-24 22:08:17,727 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 22:08:17,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == setThreadThread1of1ForFork0 ======== [2023-11-24 22:08:17,728 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;@52cf49cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:08:17,728 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 22:08:17,837 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting setThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE] === [2023-11-24 22:08:17,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:17,838 INFO L85 PathProgramCache]: Analyzing trace with hash -954920488, now seen corresponding path program 1 times [2023-11-24 22:08:17,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:17,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211107053] [2023-11-24 22:08:17,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:17,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:17,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:17,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:17,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211107053] [2023-11-24 22:08:17,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211107053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:17,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:17,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 22:08:17,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126320917] [2023-11-24 22:08:17,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:17,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 22:08:17,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:17,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 22:08:17,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 22:08:17,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:17,858 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:17,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 32.0) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:17,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:18,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:18,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (1 of 2 remaining) [2023-11-24 22:08:18,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (0 of 2 remaining) [2023-11-24 22:08:18,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-24 22:08:18,567 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 22:08:18,567 INFO L307 ceAbstractionStarter]: Result for error location setThreadThread1of1ForFork0 was SAFE,SAFE (2/3) [2023-11-24 22:08:18,572 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:08:18,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 22:08:18,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:18,578 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 22:08:18,589 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 22:08:18,590 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-24 22:08:18,590 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;@52cf49cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:08:18,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-24 22:08:18,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (13)] Waiting until timeout for monitored process [2023-11-24 22:08:18,614 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-24 22:08:18,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:18,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1987670407, now seen corresponding path program 1 times [2023-11-24 22:08:18,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:18,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216256705] [2023-11-24 22:08:18,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:18,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:18,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:18,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:18,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216256705] [2023-11-24 22:08:18,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216256705] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:18,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:18,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:08:18,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343986050] [2023-11-24 22:08:18,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:18,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:18,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:18,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:18,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:08:18,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:18,637 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:18,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:18,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:18,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-24 22:08:18,648 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-24 22:08:18,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:18,648 INFO L85 PathProgramCache]: Analyzing trace with hash 25438316, now seen corresponding path program 1 times [2023-11-24 22:08:18,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:18,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409024205] [2023-11-24 22:08:18,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:18,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:18,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:18,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:18,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409024205] [2023-11-24 22:08:18,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409024205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:18,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:18,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:08:18,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165554028] [2023-11-24 22:08:18,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:18,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:18,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:18,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:18,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:08:18,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:18,670 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:18,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:18,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:18,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-24 22:08:18,685 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-24 22:08:18,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:18,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1641908916, now seen corresponding path program 1 times [2023-11-24 22:08:18,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:18,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637879560] [2023-11-24 22:08:18,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:18,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:18,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:18,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:18,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637879560] [2023-11-24 22:08:18,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637879560] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:18,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:18,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:08:18,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558660407] [2023-11-24 22:08:18,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:18,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:18,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:18,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:18,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:08:18,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:18,714 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:18,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:18,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:18,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-24 22:08:18,797 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-24 22:08:18,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:18,797 INFO L85 PathProgramCache]: Analyzing trace with hash -462906055, now seen corresponding path program 1 times [2023-11-24 22:08:18,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:18,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567067873] [2023-11-24 22:08:18,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:18,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:18,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:18,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:18,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567067873] [2023-11-24 22:08:18,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567067873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:18,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:18,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:08:18,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225418652] [2023-11-24 22:08:18,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:18,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:18,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:18,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:18,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:08:18,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:18,825 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:18,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:18,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:18,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-24 22:08:18,869 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-24 22:08:18,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:18,870 INFO L85 PathProgramCache]: Analyzing trace with hash -718180608, now seen corresponding path program 1 times [2023-11-24 22:08:18,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:18,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390005059] [2023-11-24 22:08:18,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:18,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:18,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:18,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:18,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390005059] [2023-11-24 22:08:18,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390005059] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:18,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000206707] [2023-11-24 22:08:18,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:18,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:18,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:18,938 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:18,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-24 22:08:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:19,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:08:19,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:19,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:19,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:19,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000206707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:19,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:19,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-24 22:08:19,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696125475] [2023-11-24 22:08:19,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:19,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:19,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:19,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:19,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:08:19,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:19,047 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:19,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:19,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:19,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:19,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-24 22:08:19,376 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-24 22:08:19,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:19,376 INFO L85 PathProgramCache]: Analyzing trace with hash 707695255, now seen corresponding path program 1 times [2023-11-24 22:08:19,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:19,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325903321] [2023-11-24 22:08:19,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:19,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:19,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:19,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:19,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325903321] [2023-11-24 22:08:19,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325903321] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:19,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969230240] [2023-11-24 22:08:19,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:19,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:19,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:19,451 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:19,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-24 22:08:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:19,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:08:19,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:19,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:19,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969230240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:19,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:19,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-24 22:08:19,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449744618] [2023-11-24 22:08:19,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:19,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:19,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:19,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:19,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:08:19,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:19,567 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:19,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:19,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:19,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:19,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-24 22:08:19,844 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-24 22:08:19,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:19,845 INFO L85 PathProgramCache]: Analyzing trace with hash -901561028, now seen corresponding path program 1 times [2023-11-24 22:08:19,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:19,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089737645] [2023-11-24 22:08:19,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:19,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:19,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:19,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089737645] [2023-11-24 22:08:19,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089737645] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:19,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99100834] [2023-11-24 22:08:19,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:19,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:19,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:19,944 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:19,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-24 22:08:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:20,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:08:20,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:20,068 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:08:20,069 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:20,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99100834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:20,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:20,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-24 22:08:20,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590848931] [2023-11-24 22:08:20,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:20,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:20,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:20,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:20,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:08:20,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:20,072 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:20,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 36.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:20,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:20,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:20,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:20,388 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-24 22:08:20,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:20,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1580939486, now seen corresponding path program 1 times [2023-11-24 22:08:20,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:20,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100632505] [2023-11-24 22:08:20,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:20,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:20,472 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:20,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:20,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100632505] [2023-11-24 22:08:20,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100632505] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:20,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132426631] [2023-11-24 22:08:20,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:20,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:20,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:20,474 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:20,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-24 22:08:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:20,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:08:20,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:20,641 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:20,642 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:20,704 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:20,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132426631] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:20,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:20,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-24 22:08:20,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606260210] [2023-11-24 22:08:20,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:20,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-24 22:08:20,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:20,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-24 22:08:20,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-24 22:08:20,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:20,708 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:20,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:20,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:20,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:20,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:20,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:20,967 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-24 22:08:20,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:20,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1791793090, now seen corresponding path program 1 times [2023-11-24 22:08:20,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:20,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26126878] [2023-11-24 22:08:20,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:20,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:08:20,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:08:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:08:21,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-24 22:08:21,034 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 22:08:21,035 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2023-11-24 22:08:21,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2023-11-24 22:08:21,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2023-11-24 22:08:21,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2023-11-24 22:08:21,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2023-11-24 22:08:21,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2023-11-24 22:08:21,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2023-11-24 22:08:21,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2023-11-24 22:08:21,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2023-11-24 22:08:21,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2023-11-24 22:08:21,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2023-11-24 22:08:21,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2023-11-24 22:08:21,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2023-11-24 22:08:21,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2023-11-24 22:08:21,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2023-11-24 22:08:21,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2023-11-24 22:08:21,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2023-11-24 22:08:21,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2023-11-24 22:08:21,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2023-11-24 22:08:21,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2023-11-24 22:08:21,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2023-11-24 22:08:21,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2023-11-24 22:08:21,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2023-11-24 22:08:21,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 24 remaining) [2023-11-24 22:08:21,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-24 22:08:21,047 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:08:21,048 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (3/3) [2023-11-24 22:08:21,049 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-24 22:08:21,049 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-24 22:08:21,083 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-24 22:08:21,088 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:08:21,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 22:08:21,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:21,089 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 22:08:21,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (18)] Waiting until timeout for monitored process [2023-11-24 22:08:21,095 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 22:08:21,095 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of2ForFork1 ======== [2023-11-24 22:08:21,096 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;@52cf49cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:08:21,096 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-24 22:08:21,202 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:21,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:21,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1296278815, now seen corresponding path program 1 times [2023-11-24 22:08:21,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:21,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225698067] [2023-11-24 22:08:21,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:21,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:21,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:21,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:21,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225698067] [2023-11-24 22:08:21,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225698067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:21,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:21,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:08:21,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976170366] [2023-11-24 22:08:21,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:21,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 22:08:21,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:21,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 22:08:21,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 22:08:21,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,239 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:21,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:21,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-24 22:08:21,253 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:21,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:21,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1229435228, now seen corresponding path program 1 times [2023-11-24 22:08:21,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:21,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441649776] [2023-11-24 22:08:21,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:21,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:21,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:21,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:21,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441649776] [2023-11-24 22:08:21,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441649776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:21,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:21,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:08:21,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268957413] [2023-11-24 22:08:21,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:21,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:21,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:21,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:21,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:08:21,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,297 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:21,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:21,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:21,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-24 22:08:21,374 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:21,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:21,374 INFO L85 PathProgramCache]: Analyzing trace with hash -314075040, now seen corresponding path program 1 times [2023-11-24 22:08:21,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:21,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188469343] [2023-11-24 22:08:21,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:21,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:21,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:21,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:21,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188469343] [2023-11-24 22:08:21,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188469343] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:21,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040735607] [2023-11-24 22:08:21,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:21,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:21,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:21,456 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:21,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-24 22:08:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:21,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:08:21,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:21,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:21,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:21,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040735607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:21,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:21,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-24 22:08:21,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243963109] [2023-11-24 22:08:21,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:21,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:21,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:21,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:21,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:08:21,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,591 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:21,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:21,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:21,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:21,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:21,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:21,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-24 22:08:21,846 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr1ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:21,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:21,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1474653380, now seen corresponding path program 1 times [2023-11-24 22:08:21,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:21,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373117657] [2023-11-24 22:08:21,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:21,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:21,964 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:21,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:21,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373117657] [2023-11-24 22:08:21,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373117657] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:21,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047649546] [2023-11-24 22:08:21,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:21,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:21,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:21,967 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:21,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-24 22:08:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:22,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:08:22,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:22,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:22,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:22,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047649546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:22,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:22,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-24 22:08:22,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131344117] [2023-11-24 22:08:22,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:22,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:22,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:22,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:22,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:08:22,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:22,091 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:22,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:22,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:22,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:22,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:22,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:22,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:22,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:22,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:22,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:22,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:22,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:22,569 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting checkThreadErr3ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:22,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:22,570 INFO L85 PathProgramCache]: Analyzing trace with hash -21251073, now seen corresponding path program 1 times [2023-11-24 22:08:22,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:22,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846146432] [2023-11-24 22:08:22,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:22,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:22,699 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:22,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:22,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846146432] [2023-11-24 22:08:22,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846146432] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:22,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286837351] [2023-11-24 22:08:22,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:22,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:22,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:22,701 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:22,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-24 22:08:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:22,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:08:22,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:22,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:22,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:22,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286837351] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:22,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:22,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-24 22:08:22,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026240068] [2023-11-24 22:08:22,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:22,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:22,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:22,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:22,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:08:22,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:22,833 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:22,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:22,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:22,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:22,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:22,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:22,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:22,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:22,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:22,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:22,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:22,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:22,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:23,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:23,152 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting checkThreadErr3ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:23,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:23,152 INFO L85 PathProgramCache]: Analyzing trace with hash 34426465, now seen corresponding path program 1 times [2023-11-24 22:08:23,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:23,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676141996] [2023-11-24 22:08:23,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:23,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:23,237 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:23,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:23,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676141996] [2023-11-24 22:08:23,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676141996] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:23,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209745476] [2023-11-24 22:08:23,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:23,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:23,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:23,239 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:23,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-24 22:08:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:23,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:08:23,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:23,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:23,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:23,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209745476] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:23,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:23,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-24 22:08:23,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910117447] [2023-11-24 22:08:23,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:23,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:23,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:23,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:23,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:08:23,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:23,382 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:23,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:23,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:23,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:23,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:23,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:23,725 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting checkThreadErr3ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:23,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:23,725 INFO L85 PathProgramCache]: Analyzing trace with hash -171469738, now seen corresponding path program 1 times [2023-11-24 22:08:23,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:23,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524029467] [2023-11-24 22:08:23,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:23,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:23,805 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:23,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:23,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524029467] [2023-11-24 22:08:23,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524029467] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:23,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116956796] [2023-11-24 22:08:23,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:23,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:23,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:23,808 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:23,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-24 22:08:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:23,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:08:23,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:23,949 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:08:23,949 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:23,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116956796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:23,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:23,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-24 22:08:23,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239892137] [2023-11-24 22:08:23,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:23,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:23,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:23,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:23,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:08:23,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:23,953 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:23,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:23,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:23,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:24,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:24,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:24,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-24 22:08:24,339 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting checkThreadErr3ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:24,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:24,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1042437948, now seen corresponding path program 1 times [2023-11-24 22:08:24,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:24,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315576] [2023-11-24 22:08:24,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:24,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:24,426 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:24,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:24,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315576] [2023-11-24 22:08:24,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315576] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:24,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764061681] [2023-11-24 22:08:24,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:24,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:24,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:24,429 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:24,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-24 22:08:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:24,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:08:24,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:24,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:24,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764061681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:24,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:24,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-11-24 22:08:24,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276984196] [2023-11-24 22:08:24,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:24,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:08:24,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:24,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:08:24,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-24 22:08:24,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:24,667 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:24,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:24,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:24,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:24,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:24,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:24,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:24,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:25,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:25,106 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting checkThreadErr3ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:25,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:25,106 INFO L85 PathProgramCache]: Analyzing trace with hash 372961554, now seen corresponding path program 2 times [2023-11-24 22:08:25,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:25,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042472221] [2023-11-24 22:08:25,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:25,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:25,223 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:25,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:25,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042472221] [2023-11-24 22:08:25,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042472221] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:25,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65494830] [2023-11-24 22:08:25,224 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 22:08:25,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:25,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:25,225 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:25,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-24 22:08:25,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-24 22:08:25,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:08:25,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 22:08:25,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:25,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-24 22:08:25,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-24 22:08:25,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:08:25,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-24 22:08:25,622 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:08:25,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-24 22:08:25,657 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:08:25,657 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:25,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65494830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:25,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:25,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2023-11-24 22:08:25,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083389226] [2023-11-24 22:08:25,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:25,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 22:08:25,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:25,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 22:08:25,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-24 22:08:25,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:25,661 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:25,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:25,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:25,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:25,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:25,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:25,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:25,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:25,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:25,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:25,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:25,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:25,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:25,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:25,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:25,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:25,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:25,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:25,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:25,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:25,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:26,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:26,046 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting checkThreadErr3ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:26,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:26,047 INFO L85 PathProgramCache]: Analyzing trace with hash 2115771889, now seen corresponding path program 1 times [2023-11-24 22:08:26,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:26,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49679290] [2023-11-24 22:08:26,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:26,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:26,138 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:26,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:26,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49679290] [2023-11-24 22:08:26,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49679290] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:26,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42316772] [2023-11-24 22:08:26,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:26,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:26,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:26,141 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:26,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-24 22:08:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:26,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:08:26,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:26,372 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:26,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:26,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42316772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:26,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:26,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-11-24 22:08:26,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392911201] [2023-11-24 22:08:26,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:26,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 22:08:26,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:26,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 22:08:26,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-24 22:08:26,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:26,375 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:26,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:26,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:26,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:26,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:26,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:26,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:26,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:26,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:26,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:26,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:26,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:32,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:32,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:32,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:32,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:32,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:32,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:32,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:32,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:32,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:32,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:08:32,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:33,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:33,182 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting checkThreadErr1ASSERT_VIOLATIONDATA_RACE === [checkThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr2ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 22:08:33,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:33,183 INFO L85 PathProgramCache]: Analyzing trace with hash 701014269, now seen corresponding path program 1 times [2023-11-24 22:08:33,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:33,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657922570] [2023-11-24 22:08:33,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:33,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:33,373 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:33,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:33,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657922570] [2023-11-24 22:08:33,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657922570] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:33,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205933126] [2023-11-24 22:08:33,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:33,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:33,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:33,376 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:33,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-24 22:08:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:33,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:08:33,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:33,558 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:33,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:33,615 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:33,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205933126] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:33,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:33,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-24 22:08:33,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962747315] [2023-11-24 22:08:33,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:33,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-24 22:08:33,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:33,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-24 22:08:33,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-24 22:08:33,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:33,620 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:33,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:33,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:33,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:33,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:33,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:33,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:33,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:33,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:33,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:33,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:33,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:08:33,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:33,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:33,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:33,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:33,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:33,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:33,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:33,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:33,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:33,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:33,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:08:33,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:08:33,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-11-24 22:08:33,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2023-11-24 22:08:33,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-11-24 22:08:33,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-11-24 22:08:33,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:34,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:34,031 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:08:34,031 INFO L307 ceAbstractionStarter]: Result for error location checkThreadThread1of2ForFork1 was SAFE,SAFE,SAFE,SAFE (1/5) [2023-11-24 22:08:34,036 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:08:34,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 22:08:34,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:34,037 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 22:08:34,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4314b34-f170-47ab-adf2-461fa1a0e818/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (28)] Waiting until timeout for monitored process [2023-11-24 22:08:34,042 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 22:08:34,043 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == setThreadThread1of2ForFork0 ======== [2023-11-24 22:08:34,044 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;@52cf49cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:08:34,044 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 22:08:34,158 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting setThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE] === [2023-11-24 22:08:34,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:34,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2095044104, now seen corresponding path program 1 times [2023-11-24 22:08:34,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:34,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830547137] [2023-11-24 22:08:34,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:34,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:34,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:34,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:34,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830547137] [2023-11-24 22:08:34,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830547137] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:34,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:34,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 22:08:34,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030646597] [2023-11-24 22:08:34,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:34,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 22:08:34,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:34,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 22:08:34,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 22:08:34,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:34,181 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:34,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 32.0) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:34,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.