./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-in-array.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/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_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-in-array.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/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_73cd7046-1990-445d-a037-936762d58c9f/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 0026ab1092a8a0465a20b39c2dea92fa9c4dc52098c477016ebc8544f5aaf0f0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:07:18,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:07:18,700 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2023-11-24 22:07:18,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:07:18,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:07:18,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:07:18,740 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:07:18,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:07:18,742 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:07:18,743 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:07:18,743 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:07:18,744 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:07:18,745 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:07:18,745 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:07:18,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:07:18,747 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:07:18,747 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:07:18,748 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:07:18,748 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:07:18,749 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:07:18,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:07:18,757 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:07:18,758 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-24 22:07:18,758 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:07:18,761 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:07:18,764 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:07:18,765 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:07:18,765 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:07:18,766 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:07:18,766 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-24 22:07:18,767 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:07:18,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:07:18,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:07:18,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:07:18,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:07:18,770 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 22:07:18,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:07:18,771 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:07:18,771 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-24 22:07:18,771 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-24 22:07:18,772 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:07:18,772 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-24 22:07:18,772 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-24 22:07:18,773 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_73cd7046-1990-445d-a037-936762d58c9f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0026ab1092a8a0465a20b39c2dea92fa9c4dc52098c477016ebc8544f5aaf0f0 [2023-11-24 22:07:19,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:07:19,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:07:19,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:07:19,077 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:07:19,078 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:07:19,079 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/../../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-in-array.i [2023-11-24 22:07:22,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:07:22,522 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:07:22,523 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/sv-benchmarks/c/pthread-race-challenges/per-thread-struct-in-array.i [2023-11-24 22:07:22,544 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/data/545027bbe/5e3e98741799405d982662ef2f6c9052/FLAGe8a8e369b [2023-11-24 22:07:22,564 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/data/545027bbe/5e3e98741799405d982662ef2f6c9052 [2023-11-24 22:07:22,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:07:22,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:07:22,578 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:07:22,578 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:07:22,589 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:07:22,590 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:07:22" (1/1) ... [2023-11-24 22:07:22,594 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26daef9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:22, skipping insertion in model container [2023-11-24 22:07:22,594 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:07:22" (1/1) ... [2023-11-24 22:07:22,684 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:07:23,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:07:23,215 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:07:23,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:07:23,350 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:07:23,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:23 WrapperNode [2023-11-24 22:07:23,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:07:23,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:07:23,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:07:23,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:07:23,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:23" (1/1) ... [2023-11-24 22:07:23,401 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:23" (1/1) ... [2023-11-24 22:07:23,436 INFO L138 Inliner]: procedures = 265, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2023-11-24 22:07:23,437 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:07:23,438 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:07:23,438 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:07:23,438 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:07:23,449 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:23" (1/1) ... [2023-11-24 22:07:23,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:23" (1/1) ... [2023-11-24 22:07:23,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:23" (1/1) ... [2023-11-24 22:07:23,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:23" (1/1) ... [2023-11-24 22:07:23,467 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:23" (1/1) ... [2023-11-24 22:07:23,471 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:23" (1/1) ... [2023-11-24 22:07:23,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:23" (1/1) ... [2023-11-24 22:07:23,475 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:23" (1/1) ... [2023-11-24 22:07:23,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:07:23,481 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:07:23,481 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:07:23,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:07:23,482 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:23" (1/1) ... [2023-11-24 22:07:23,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:07:23,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:23,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 22:07:23,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 22:07:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:07:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 22:07:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:07:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 22:07:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:07:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:07:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 22:07:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-24 22:07:23,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-24 22:07:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:07:23,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:07:23,559 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 22:07:23,711 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:07:23,713 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:07:24,033 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:07:24,046 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:07:24,046 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 22:07:24,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:07:24 BoogieIcfgContainer [2023-11-24 22:07:24,048 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:07:24,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 22:07:24,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 22:07:24,057 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 22:07:24,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 10:07:22" (1/3) ... [2023-11-24 22:07:24,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6834acec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:07:24, skipping insertion in model container [2023-11-24 22:07:24,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:23" (2/3) ... [2023-11-24 22:07:24,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6834acec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:07:24, skipping insertion in model container [2023-11-24 22:07:24,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:07:24" (3/3) ... [2023-11-24 22:07:24,061 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-struct-in-array.i [2023-11-24 22:07:24,070 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 22:07:24,089 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 22:07:24,089 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-24 22:07:24,090 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 22:07:24,202 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-24 22:07:24,252 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:07:24,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 22:07:24,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:24,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 22:07:24,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-24 22:07:24,308 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 22:07:24,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread1of1ForFork0 ======== [2023-11-24 22:07:24,327 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;@4734d94b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:07:24,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 22:07:24,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2023-11-24 22:07:24,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:24,710 INFO L85 PathProgramCache]: Analyzing trace with hash -983011726, now seen corresponding path program 1 times [2023-11-24 22:07:24,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:24,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535159919] [2023-11-24 22:07:24,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:24,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:25,067 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 22:07:25,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:25,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535159919] [2023-11-24 22:07:25,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535159919] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:25,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:25,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:07:25,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008297368] [2023-11-24 22:07:25,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:25,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 22:07:25,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:25,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 22:07:25,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 22:07:25,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:25,107 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:25,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:07:25,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:25,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:25,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 22:07:25,132 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2023-11-24 22:07:25,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:25,133 INFO L85 PathProgramCache]: Analyzing trace with hash -396544275, now seen corresponding path program 1 times [2023-11-24 22:07:25,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:25,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169799666] [2023-11-24 22:07:25,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:25,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:26,176 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 22:07:26,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:26,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169799666] [2023-11-24 22:07:26,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169799666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:26,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:26,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 22:07:26,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591301260] [2023-11-24 22:07:26,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:26,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 22:07:26,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:26,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 22:07:26,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:07:26,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:26,186 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:26,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:07:26,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:26,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:26,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:26,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:26,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 22:07:26,458 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2023-11-24 22:07:26,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:26,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1434386381, now seen corresponding path program 1 times [2023-11-24 22:07:26,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:26,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935052556] [2023-11-24 22:07:26,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:26,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:27,353 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 22:07:27,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:27,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935052556] [2023-11-24 22:07:27,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935052556] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:07:27,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299531017] [2023-11-24 22:07:27,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:27,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:27,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:27,384 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:07:27,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 22:07:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:27,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-24 22:07:27,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:27,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-24 22:07:27,597 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-24 22:07:27,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-24 22:07:27,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2023-11-24 22:07:27,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-24 22:07:27,733 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 21 treesize of output 20 [2023-11-24 22:07:27,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:07:27,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-11-24 22:07:27,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:07:27,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-11-24 22:07:28,031 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 43 treesize of output 32 [2023-11-24 22:07:28,047 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 22:07:28,047 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:07:28,093 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_188 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_188) c_threadThread1of1ForFork0_~t~0.base) (+ c_threadThread1of1ForFork0_~t~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_188 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_188) c_threadThread1of1ForFork0_~t~0.base) c_threadThread1of1ForFork0_~t~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_188 (Array Int Int))) (= |c_threadThread1of1ForFork0_#t~nondet4| (select (select (store |c_#race| |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_188) c_threadThread1of1ForFork0_~t~0.base) (+ 3 c_threadThread1of1ForFork0_~t~0.offset)))) (forall ((v_ArrVal_188 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_188) c_threadThread1of1ForFork0_~t~0.base) (+ 2 c_threadThread1of1ForFork0_~t~0.offset)) |c_threadThread1of1ForFork0_#t~nondet4|))) is different from false [2023-11-24 22:07:28,318 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 3 c_threadThread1of1ForFork0_~t~0.offset))) (let ((.cse0 (store |c_#race| c_threadThread1of1ForFork0_~t~0.base (store (select |c_#race| c_threadThread1of1ForFork0_~t~0.base) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|)))) (and (forall ((v_ArrVal_188 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_188) c_threadThread1of1ForFork0_~t~0.base) c_threadThread1of1ForFork0_~t~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_188 (Array Int Int))) (= |c_threadThread1of1ForFork0_#t~nondet4| (select (select (store .cse0 |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_188) c_threadThread1of1ForFork0_~t~0.base) (+ c_threadThread1of1ForFork0_~t~0.offset 1)))) (forall ((v_ArrVal_188 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_188) c_threadThread1of1ForFork0_~t~0.base) .cse1) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_188 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_188) c_threadThread1of1ForFork0_~t~0.base) (+ 2 c_threadThread1of1ForFork0_~t~0.offset)) |c_threadThread1of1ForFork0_#t~nondet4|))))) is different from false [2023-11-24 22:07:28,349 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 2 c_threadThread1of1ForFork0_~t~0.offset)) (.cse2 (+ 3 c_threadThread1of1ForFork0_~t~0.offset))) (let ((.cse0 (store |c_#race| c_threadThread1of1ForFork0_~t~0.base (store (store (select |c_#race| c_threadThread1of1ForFork0_~t~0.base) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|) .cse2 |c_threadThread1of1ForFork0_#t~nondet4|)))) (and (forall ((v_ArrVal_188 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_188) c_threadThread1of1ForFork0_~t~0.base) .cse1) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_188 (Array Int Int))) (= |c_threadThread1of1ForFork0_#t~nondet4| (select (select (store .cse0 |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_188) c_threadThread1of1ForFork0_~t~0.base) .cse2))) (forall ((v_ArrVal_188 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_188) c_threadThread1of1ForFork0_~t~0.base) (+ c_threadThread1of1ForFork0_~t~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_188 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_188) c_threadThread1of1ForFork0_~t~0.base) c_threadThread1of1ForFork0_~t~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|))))) is different from false [2023-11-24 22:07:28,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-24 22:07:28,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2023-11-24 22:07:28,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299531017] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:07:28,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:07:28,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 17 [2023-11-24 22:07:28,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329872418] [2023-11-24 22:07:28,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:07:28,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-24 22:07:28,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:28,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-24 22:07:28,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=174, Unknown=3, NotChecked=84, Total=306 [2023-11-24 22:07:28,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:28,543 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:28,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.470588235294118) internal successors, (76), 18 states have internal predecessors, (76), 0 states have call successors, (0), 0 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 22:07:28,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:28,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:28,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:29,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:29,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:29,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-24 22:07:29,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-24 22:07:29,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-24 22:07:29,738 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2023-11-24 22:07:29,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:29,740 INFO L85 PathProgramCache]: Analyzing trace with hash -624750547, now seen corresponding path program 2 times [2023-11-24 22:07:29,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:29,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81105793] [2023-11-24 22:07:29,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:29,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:31,028 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:31,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:31,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81105793] [2023-11-24 22:07:31,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81105793] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:07:31,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220201204] [2023-11-24 22:07:31,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 22:07:31,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:31,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:31,031 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:07:31,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 22:07:31,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-24 22:07:31,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:07:31,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-24 22:07:31,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:31,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-24 22:07:31,534 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 22:07:31,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-24 22:07:31,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:07:31,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-11-24 22:07:31,721 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:07:31,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-11-24 22:07:31,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:31,985 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 43 treesize of output 32 [2023-11-24 22:07:32,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:32,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2023-11-24 22:07:32,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:32,052 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 43 treesize of output 32 [2023-11-24 22:07:32,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:32,084 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 43 treesize of output 32 [2023-11-24 22:07:32,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:32,243 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 43 treesize of output 32 [2023-11-24 22:07:32,256 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:32,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:07:32,285 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_307 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_307) c_threadThread1of1ForFork0_~t~0.base) (+ c_threadThread1of1ForFork0_~t~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_307 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_307) c_threadThread1of1ForFork0_~t~0.base) c_threadThread1of1ForFork0_~t~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_307 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_307) c_threadThread1of1ForFork0_~t~0.base) (+ 3 c_threadThread1of1ForFork0_~t~0.offset)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_307 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_307) c_threadThread1of1ForFork0_~t~0.base) (+ 2 c_threadThread1of1ForFork0_~t~0.offset)) |c_threadThread1of1ForFork0_#t~nondet4|))) is different from false [2023-11-24 22:07:32,712 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 3 c_threadThread1of1ForFork0_~t~0.offset))) (let ((.cse0 (store |c_#race| c_threadThread1of1ForFork0_~t~0.base (store (select |c_#race| c_threadThread1of1ForFork0_~t~0.base) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|)))) (and (forall ((v_ArrVal_306 (Array Int Int)) (v_ArrVal_307 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_306) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_307) c_threadThread1of1ForFork0_~t~0.base) (+ c_threadThread1of1ForFork0_~t~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_306 (Array Int Int)) (v_ArrVal_307 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_306) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_307) c_threadThread1of1ForFork0_~t~0.base) (+ 2 c_threadThread1of1ForFork0_~t~0.offset)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_306 (Array Int Int)) (v_ArrVal_307 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_306) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_307) c_threadThread1of1ForFork0_~t~0.base) c_threadThread1of1ForFork0_~t~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_306 (Array Int Int)) (v_ArrVal_307 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_306) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_307) c_threadThread1of1ForFork0_~t~0.base) .cse1) |c_threadThread1of1ForFork0_#t~nondet4|))))) is different from false [2023-11-24 22:07:32,735 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 2 c_threadThread1of1ForFork0_~t~0.offset)) (.cse2 (+ 3 c_threadThread1of1ForFork0_~t~0.offset))) (let ((.cse0 (store |c_#race| c_threadThread1of1ForFork0_~t~0.base (store (store (select |c_#race| c_threadThread1of1ForFork0_~t~0.base) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|) .cse2 |c_threadThread1of1ForFork0_#t~nondet4|)))) (and (forall ((v_ArrVal_306 (Array Int Int)) (v_ArrVal_307 (Array Int Int))) (= |c_threadThread1of1ForFork0_#t~nondet4| (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_306) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_307) c_threadThread1of1ForFork0_~t~0.base) .cse1))) (forall ((v_ArrVal_306 (Array Int Int)) (v_ArrVal_307 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_306) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_307) c_threadThread1of1ForFork0_~t~0.base) .cse2) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_306 (Array Int Int)) (v_ArrVal_307 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_306) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_307) c_threadThread1of1ForFork0_~t~0.base) (+ c_threadThread1of1ForFork0_~t~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_306 (Array Int Int)) (v_ArrVal_307 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#ts~0#1.base| v_ArrVal_306) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_307) c_threadThread1of1ForFork0_~t~0.base) c_threadThread1of1ForFork0_~t~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|))))) is different from false [2023-11-24 22:07:33,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-24 22:07:33,194 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2023-11-24 22:07:33,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220201204] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:07:33,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:07:33,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 38 [2023-11-24 22:07:33,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278629697] [2023-11-24 22:07:33,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:07:33,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-11-24 22:07:33,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:33,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-11-24 22:07:33,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1111, Unknown=17, NotChecked=210, Total=1482 [2023-11-24 22:07:33,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:33,200 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:33,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 4.421052631578948) internal successors, (168), 39 states have internal predecessors, (168), 0 states have call successors, (0), 0 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 22:07:33,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:33,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:33,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-11-24 22:07:33,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:35,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:35,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:35,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-24 22:07:35,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-24 22:07:35,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:35,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:35,231 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2023-11-24 22:07:35,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:35,232 INFO L85 PathProgramCache]: Analyzing trace with hash -862869011, now seen corresponding path program 1 times [2023-11-24 22:07:35,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:35,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127609770] [2023-11-24 22:07:35,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:35,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:36,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:36,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:36,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127609770] [2023-11-24 22:07:36,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127609770] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:07:36,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555992531] [2023-11-24 22:07:36,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:36,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:36,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:36,804 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:07:36,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 22:07:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:36,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-24 22:07:36,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:36,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-24 22:07:37,045 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-24 22:07:37,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-11-24 22:07:37,203 INFO L349 Elim1Store]: treesize reduction 32, result has 45.8 percent of original size [2023-11-24 22:07:37,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33 [2023-11-24 22:07:37,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:37,315 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-24 22:07:37,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2023-11-24 22:07:38,021 INFO L349 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2023-11-24 22:07:38,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 62 [2023-11-24 22:07:38,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2023-11-24 22:07:38,573 INFO L349 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2023-11-24 22:07:38,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 63 [2023-11-24 22:07:38,665 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 22:07:38,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-24 22:07:38,962 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:07:38,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-11-24 22:07:39,114 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:07:39,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-11-24 22:07:39,835 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:07:39,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 50 [2023-11-24 22:07:39,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:39,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2023-11-24 22:07:39,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:39,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2023-11-24 22:07:40,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:40,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2023-11-24 22:07:40,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:40,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2023-11-24 22:07:40,109 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 43 treesize of output 32 [2023-11-24 22:07:40,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:40,121 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:07:40,146 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_431 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_431) c_threadThread1of1ForFork0_~t~0.base) (+ 2 c_threadThread1of1ForFork0_~t~0.offset)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_431 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_431) c_threadThread1of1ForFork0_~t~0.base) (+ c_threadThread1of1ForFork0_~t~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_431 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_431) c_threadThread1of1ForFork0_~t~0.base) (+ 3 c_threadThread1of1ForFork0_~t~0.offset)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_431 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_431) c_threadThread1of1ForFork0_~t~0.base) c_threadThread1of1ForFork0_~t~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|))) is different from false [2023-11-24 22:07:40,438 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|))) (and (forall ((v_ArrVal_430 (Array Int Int)) (v_ArrVal_431 (Array Int Int))) (= (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_430) .cse0 v_ArrVal_431) c_threadThread1of1ForFork0_~t~0.base) (+ 2 c_threadThread1of1ForFork0_~t~0.offset)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_430 (Array Int Int)) (v_ArrVal_431 (Array Int Int))) (= (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_430) .cse0 v_ArrVal_431) c_threadThread1of1ForFork0_~t~0.base) (+ 3 c_threadThread1of1ForFork0_~t~0.offset)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_430 (Array Int Int)) (v_ArrVal_431 (Array Int Int))) (= (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_430) .cse0 v_ArrVal_431) c_threadThread1of1ForFork0_~t~0.base) c_threadThread1of1ForFork0_~t~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_430 (Array Int Int)) (v_ArrVal_431 (Array Int Int))) (= (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_430) .cse0 v_ArrVal_431) c_threadThread1of1ForFork0_~t~0.base) (+ c_threadThread1of1ForFork0_~t~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|)))) is different from false [2023-11-24 22:07:40,612 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (+ 3 c_threadThread1of1ForFork0_~t~0.offset))) (let ((.cse0 (store |c_#race| c_threadThread1of1ForFork0_~t~0.base (store (select |c_#race| c_threadThread1of1ForFork0_~t~0.base) .cse2 |c_threadThread1of1ForFork0_#t~nondet4|))) (.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|))) (and (forall ((v_ArrVal_430 (Array Int Int)) (v_ArrVal_431 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_430) .cse1 v_ArrVal_431) c_threadThread1of1ForFork0_~t~0.base) c_threadThread1of1ForFork0_~t~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_430 (Array Int Int)) (v_ArrVal_431 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_430) .cse1 v_ArrVal_431) c_threadThread1of1ForFork0_~t~0.base) .cse2) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_430 (Array Int Int)) (v_ArrVal_431 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_430) .cse1 v_ArrVal_431) c_threadThread1of1ForFork0_~t~0.base) (+ c_threadThread1of1ForFork0_~t~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_430 (Array Int Int)) (v_ArrVal_431 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_430) .cse1 v_ArrVal_431) c_threadThread1of1ForFork0_~t~0.base) (+ 2 c_threadThread1of1ForFork0_~t~0.offset)) |c_threadThread1of1ForFork0_#t~nondet4|))))) is different from false [2023-11-24 22:07:40,636 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (+ 2 c_threadThread1of1ForFork0_~t~0.offset)) (.cse2 (+ 3 c_threadThread1of1ForFork0_~t~0.offset))) (let ((.cse0 (store |c_#race| c_threadThread1of1ForFork0_~t~0.base (store (store (select |c_#race| c_threadThread1of1ForFork0_~t~0.base) .cse3 |c_threadThread1of1ForFork0_#t~nondet4|) .cse2 |c_threadThread1of1ForFork0_#t~nondet4|))) (.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|))) (and (forall ((v_ArrVal_430 (Array Int Int)) (v_ArrVal_431 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_430) .cse1 v_ArrVal_431) c_threadThread1of1ForFork0_~t~0.base) (+ c_threadThread1of1ForFork0_~t~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_430 (Array Int Int)) (v_ArrVal_431 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_430) .cse1 v_ArrVal_431) c_threadThread1of1ForFork0_~t~0.base) c_threadThread1of1ForFork0_~t~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_430 (Array Int Int)) (v_ArrVal_431 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_430) .cse1 v_ArrVal_431) c_threadThread1of1ForFork0_~t~0.base) .cse2) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_430 (Array Int Int)) (v_ArrVal_431 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_430) .cse1 v_ArrVal_431) c_threadThread1of1ForFork0_~t~0.base) .cse3) |c_threadThread1of1ForFork0_#t~nondet4|))))) is different from false [2023-11-24 22:07:41,621 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:07:41,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 103 [2023-11-24 22:07:41,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 63 [2023-11-24 22:07:42,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-11-24 22:07:42,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555992531] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:07:42,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:07:42,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 50 [2023-11-24 22:07:42,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084184866] [2023-11-24 22:07:42,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:07:42,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-11-24 22:07:42,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:42,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-11-24 22:07:42,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1955, Unknown=27, NotChecked=372, Total=2550 [2023-11-24 22:07:42,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:42,084 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:42,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 3.4) internal successors, (170), 51 states have internal predecessors, (170), 0 states have call successors, (0), 0 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 22:07:42,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:42,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:42,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-11-24 22:07:42,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-11-24 22:07:42,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:48,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-24 22:07:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-24 22:07:48,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-24 22:07:48,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:49,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:49,024 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2023-11-24 22:07:49,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:49,024 INFO L85 PathProgramCache]: Analyzing trace with hash -609284871, now seen corresponding path program 2 times [2023-11-24 22:07:49,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:49,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930179067] [2023-11-24 22:07:49,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:49,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:50,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:50,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930179067] [2023-11-24 22:07:50,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930179067] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:07:50,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355484225] [2023-11-24 22:07:50,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 22:07:50,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:50,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:50,482 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:07:50,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73cd7046-1990-445d-a037-936762d58c9f/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-24 22:07:50,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-24 22:07:50,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:07:50,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 76 conjunts are in the unsatisfiable core [2023-11-24 22:07:50,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:50,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-24 22:07:50,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:50,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2023-11-24 22:07:51,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:51,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:51,039 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-24 22:07:51,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 25 [2023-11-24 22:07:51,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:51,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:51,160 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-24 22:07:51,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 22 [2023-11-24 22:07:51,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-24 22:07:52,333 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-11-24 22:07:52,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 66 [2023-11-24 22:07:52,789 INFO L349 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2023-11-24 22:07:52,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 52 [2023-11-24 22:07:52,868 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 22:07:52,994 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 22:07:53,135 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:07:53,135 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 22:07:53,985 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-24 22:07:53,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 35 [2023-11-24 22:07:54,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:54,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-24 22:07:54,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-11-24 22:07:54,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:54,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-11-24 22:07:54,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:54,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-11-24 22:07:54,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:54,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-11-24 22:07:54,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-11-24 22:07:54,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:54,449 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:07:54,496 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_555 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_555) c_threadThread1of1ForFork0_~t~0.base) c_threadThread1of1ForFork0_~t~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_555 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_555) c_threadThread1of1ForFork0_~t~0.base) (+ 2 c_threadThread1of1ForFork0_~t~0.offset)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_555 (Array Int Int))) (= |c_threadThread1of1ForFork0_#t~nondet4| (select (select (store |c_#race| |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_555) c_threadThread1of1ForFork0_~t~0.base) (+ c_threadThread1of1ForFork0_~t~0.offset 1)))) (forall ((v_ArrVal_555 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_555) c_threadThread1of1ForFork0_~t~0.base) (+ 3 c_threadThread1of1ForFork0_~t~0.offset)) |c_threadThread1of1ForFork0_#t~nondet4|))) is different from false [2023-11-24 22:07:54,540 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_555 (Array Int Int)) (v_ArrVal_554 (Array Int Int))) (= |c_threadThread1of1ForFork0_#t~nondet4| (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_554) |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_555) c_threadThread1of1ForFork0_~t~0.base) (+ 3 c_threadThread1of1ForFork0_~t~0.offset)))) (forall ((v_ArrVal_555 (Array Int Int)) (v_ArrVal_554 (Array Int Int))) (= (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_554) |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_555) c_threadThread1of1ForFork0_~t~0.base) c_threadThread1of1ForFork0_~t~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_555 (Array Int Int)) (v_ArrVal_554 (Array Int Int))) (= (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_554) |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_555) c_threadThread1of1ForFork0_~t~0.base) (+ 2 c_threadThread1of1ForFork0_~t~0.offset)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_555 (Array Int Int)) (v_ArrVal_554 (Array Int Int))) (= (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_554) |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_555) c_threadThread1of1ForFork0_~t~0.base) (+ c_threadThread1of1ForFork0_~t~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|))) is different from false [2023-11-24 22:07:54,836 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (+ 3 c_threadThread1of1ForFork0_~t~0.offset))) (and (forall ((v_ArrVal_550 (Array Int Int)) (v_ArrVal_555 (Array Int Int)) (v_ArrVal_554 (Array Int Int))) (= (select (select (store (store (store |c_#race| c_threadThread1of1ForFork0_~t~0.base (store (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_550) c_threadThread1of1ForFork0_~t~0.base) .cse0 |c_threadThread1of1ForFork0_#t~nondet4|)) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_554) |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_555) c_threadThread1of1ForFork0_~t~0.base) c_threadThread1of1ForFork0_~t~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_550 (Array Int Int)) (v_ArrVal_555 (Array Int Int)) (v_ArrVal_554 (Array Int Int))) (= (select (select (store (store (store |c_#race| c_threadThread1of1ForFork0_~t~0.base (store (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_550) c_threadThread1of1ForFork0_~t~0.base) .cse0 |c_threadThread1of1ForFork0_#t~nondet4|)) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_554) |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_555) c_threadThread1of1ForFork0_~t~0.base) .cse0) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_550 (Array Int Int)) (v_ArrVal_555 (Array Int Int)) (v_ArrVal_554 (Array Int Int))) (= (select (select (store (store (store |c_#race| c_threadThread1of1ForFork0_~t~0.base (store (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_550) c_threadThread1of1ForFork0_~t~0.base) .cse0 |c_threadThread1of1ForFork0_#t~nondet4|)) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_554) |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_555) c_threadThread1of1ForFork0_~t~0.base) (+ c_threadThread1of1ForFork0_~t~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_550 (Array Int Int)) (v_ArrVal_555 (Array Int Int)) (v_ArrVal_554 (Array Int Int))) (= (select (select (store (store (store |c_#race| c_threadThread1of1ForFork0_~t~0.base (store (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_550) c_threadThread1of1ForFork0_~t~0.base) .cse0 |c_threadThread1of1ForFork0_#t~nondet4|)) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_554) |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_555) c_threadThread1of1ForFork0_~t~0.base) (+ 2 c_threadThread1of1ForFork0_~t~0.offset)) |c_threadThread1of1ForFork0_#t~nondet4|)))) is different from false [2023-11-24 22:07:54,860 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (+ 3 c_threadThread1of1ForFork0_~t~0.offset)) (.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|))) (and (forall ((v_ArrVal_550 (Array Int Int)) (v_ArrVal_555 (Array Int Int)) (v_ArrVal_554 (Array Int Int))) (= (select (select (store (store (store |c_#race| c_threadThread1of1ForFork0_~t~0.base (store (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_550) c_threadThread1of1ForFork0_~t~0.base) .cse0 |c_threadThread1of1ForFork0_#t~nondet4|)) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_554) .cse1 v_ArrVal_555) c_threadThread1of1ForFork0_~t~0.base) (+ c_threadThread1of1ForFork0_~t~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_550 (Array Int Int)) (v_ArrVal_555 (Array Int Int)) (v_ArrVal_554 (Array Int Int))) (= |c_threadThread1of1ForFork0_#t~nondet4| (select (select (store (store (store |c_#race| c_threadThread1of1ForFork0_~t~0.base (store (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_550) c_threadThread1of1ForFork0_~t~0.base) .cse0 |c_threadThread1of1ForFork0_#t~nondet4|)) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_554) .cse1 v_ArrVal_555) c_threadThread1of1ForFork0_~t~0.base) .cse0))) (forall ((v_ArrVal_550 (Array Int Int)) (v_ArrVal_555 (Array Int Int)) (v_ArrVal_554 (Array Int Int))) (= (select (select (store (store (store |c_#race| c_threadThread1of1ForFork0_~t~0.base (store (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_550) c_threadThread1of1ForFork0_~t~0.base) .cse0 |c_threadThread1of1ForFork0_#t~nondet4|)) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_554) .cse1 v_ArrVal_555) c_threadThread1of1ForFork0_~t~0.base) c_threadThread1of1ForFork0_~t~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_550 (Array Int Int)) (v_ArrVal_555 (Array Int Int)) (v_ArrVal_554 (Array Int Int))) (= (select (select (store (store (store |c_#race| c_threadThread1of1ForFork0_~t~0.base (store (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_550) c_threadThread1of1ForFork0_~t~0.base) .cse0 |c_threadThread1of1ForFork0_#t~nondet4|)) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_554) .cse1 v_ArrVal_555) c_threadThread1of1ForFork0_~t~0.base) (+ 2 c_threadThread1of1ForFork0_~t~0.offset)) |c_threadThread1of1ForFork0_#t~nondet4|)))) is different from false [2023-11-24 22:07:55,781 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:07:55,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 196 treesize of output 188 [2023-11-24 22:07:55,794 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:07:55,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 87 [2023-11-24 22:07:55,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2023-11-24 22:07:55,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2023-11-24 22:07:55,822 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:07:55,823 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:07:55,829 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2023-11-24 22:07:55,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 1 [2023-11-24 22:07:55,832 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:07:55,833 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:07:55,836 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:07:55,837 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:07:55,843 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2023-11-24 22:07:55,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 1 [2023-11-24 22:07:56,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2023-11-24 22:07:57,181 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:07:57,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 100 [2023-11-24 22:07:57,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 63 [2023-11-24 22:07:58,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:58,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355484225] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:07:58,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:07:58,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 25, 23] total 65 [2023-11-24 22:07:58,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090968179] [2023-11-24 22:07:58,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:07:58,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2023-11-24 22:07:58,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:58,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2023-11-24 22:07:58,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=3463, Unknown=26, NotChecked=492, Total=4290 [2023-11-24 22:07:58,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:58,277 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:58,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 2.876923076923077) internal successors, (187), 66 states have internal predecessors, (187), 0 states have call successors, (0), 0 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 22:07:58,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:58,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:58,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-11-24 22:07:58,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-11-24 22:07:58,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-11-24 22:07:58,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.