./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-prod-cons.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7225a3dc80a635bdf8bc0a0aebf3fff6c385d87e3635c30eb2fdc2ad9b10efb0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 17:18:07,393 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 17:18:07,460 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2023-11-21 17:18:07,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 17:18:07,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 17:18:07,492 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 17:18:07,493 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 17:18:07,494 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 17:18:07,494 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 17:18:07,495 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 17:18:07,496 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 17:18:07,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 17:18:07,497 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 17:18:07,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 17:18:07,499 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 17:18:07,499 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 17:18:07,500 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 17:18:07,501 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 17:18:07,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 17:18:07,502 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 17:18:07,502 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 17:18:07,503 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 17:18:07,504 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 17:18:07,504 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 17:18:07,505 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 17:18:07,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 17:18:07,506 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 17:18:07,507 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 17:18:07,507 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 17:18:07,508 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 17:18:07,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 17:18:07,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 17:18:07,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 17:18:07,510 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 17:18:07,510 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 17:18:07,510 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 17:18:07,511 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-21 17:18:07,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 17:18:07,512 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 17:18:07,512 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-21 17:18:07,513 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-21 17:18:07,513 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 17:18:07,514 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-21 17:18:07,514 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-21 17:18:07,515 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_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7225a3dc80a635bdf8bc0a0aebf3fff6c385d87e3635c30eb2fdc2ad9b10efb0 [2023-11-21 17:18:07,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 17:18:07,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 17:18:07,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 17:18:07,792 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 17:18:07,793 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 17:18:07,794 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/../../sv-benchmarks/c/weaver/popl20-prod-cons.wvr.c [2023-11-21 17:18:10,918 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 17:18:11,150 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 17:18:11,151 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/sv-benchmarks/c/weaver/popl20-prod-cons.wvr.c [2023-11-21 17:18:11,161 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/data/02b40d140/07a4ef2ceb954621a6a17990d1e6da15/FLAG8480642f2 [2023-11-21 17:18:11,182 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/data/02b40d140/07a4ef2ceb954621a6a17990d1e6da15 [2023-11-21 17:18:11,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 17:18:11,193 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 17:18:11,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 17:18:11,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 17:18:11,203 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 17:18:11,207 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:18:11" (1/1) ... [2023-11-21 17:18:11,208 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31fb534d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:11, skipping insertion in model container [2023-11-21 17:18:11,208 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:18:11" (1/1) ... [2023-11-21 17:18:11,243 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 17:18:11,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 17:18:11,470 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 17:18:11,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 17:18:11,512 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 17:18:11,513 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 17:18:11,521 INFO L206 MainTranslator]: Completed translation [2023-11-21 17:18:11,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:11 WrapperNode [2023-11-21 17:18:11,522 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 17:18:11,523 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 17:18:11,523 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 17:18:11,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 17:18:11,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:11" (1/1) ... [2023-11-21 17:18:11,541 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:11" (1/1) ... [2023-11-21 17:18:11,578 INFO L138 Inliner]: procedures = 25, calls = 51, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 185 [2023-11-21 17:18:11,579 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 17:18:11,580 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 17:18:11,580 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 17:18:11,580 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 17:18:11,591 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:11" (1/1) ... [2023-11-21 17:18:11,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:11" (1/1) ... [2023-11-21 17:18:11,595 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:11" (1/1) ... [2023-11-21 17:18:11,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:11" (1/1) ... [2023-11-21 17:18:11,604 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:11" (1/1) ... [2023-11-21 17:18:11,609 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:11" (1/1) ... [2023-11-21 17:18:11,611 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:11" (1/1) ... [2023-11-21 17:18:11,613 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:11" (1/1) ... [2023-11-21 17:18:11,617 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 17:18:11,618 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 17:18:11,618 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 17:18:11,618 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 17:18:11,619 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:11" (1/1) ... [2023-11-21 17:18:11,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 17:18:11,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:18:11,654 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 17:18:11,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 17:18:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 17:18:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 17:18:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 17:18:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 17:18:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 17:18:11,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 17:18:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 17:18:11,701 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 17:18:11,702 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-21 17:18:11,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-21 17:18:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 17:18:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 17:18:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 17:18:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 17:18:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 17:18:11,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 17:18:11,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 17:18:11,707 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 17:18:11,817 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 17:18:11,819 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 17:18:12,189 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 17:18:12,578 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 17:18:12,578 INFO L308 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-21 17:18:12,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:18:12 BoogieIcfgContainer [2023-11-21 17:18:12,580 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 17:18:12,583 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 17:18:12,584 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 17:18:12,587 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 17:18:12,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:18:11" (1/3) ... [2023-11-21 17:18:12,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145d4df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:18:12, skipping insertion in model container [2023-11-21 17:18:12,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:11" (2/3) ... [2023-11-21 17:18:12,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145d4df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:18:12, skipping insertion in model container [2023-11-21 17:18:12,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:18:12" (3/3) ... [2023-11-21 17:18:12,591 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons.wvr.c [2023-11-21 17:18:12,601 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 17:18:12,612 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 17:18:12,612 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-21 17:18:12,612 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 17:18:12,734 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-21 17:18:12,790 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 17:18:12,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-21 17:18:12,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:18:12,796 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-21 17:18:12,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-21 17:18:12,875 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-21 17:18:12,892 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork1 ======== [2023-11-21 17:18:12,914 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;@cd2ab5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 17:18:12,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-21 17:18:13,351 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 17:18:13,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:13,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1990081106, now seen corresponding path program 1 times [2023-11-21 17:18:13,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:13,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108883093] [2023-11-21 17:18:13,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:13,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:13,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:13,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:13,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108883093] [2023-11-21 17:18:13,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108883093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 17:18:13,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 17:18:13,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 17:18:13,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688376223] [2023-11-21 17:18:13,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 17:18:13,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 17:18:13,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:13,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 17:18:13,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 17:18:13,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:13,960 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:13,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 17:18:13,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:14,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:14,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 17:18:14,107 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 17:18:14,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:14,108 INFO L85 PathProgramCache]: Analyzing trace with hash 2022596542, now seen corresponding path program 1 times [2023-11-21 17:18:14,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:14,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495452388] [2023-11-21 17:18:14,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:14,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:14,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:14,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:14,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495452388] [2023-11-21 17:18:14,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495452388] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 17:18:14,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 17:18:14,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 17:18:14,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431291128] [2023-11-21 17:18:14,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 17:18:14,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 17:18:14,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:14,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 17:18:14,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 17:18:14,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:14,271 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:14,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 17:18:14,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:14,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:14,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:14,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:14,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 17:18:14,453 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 17:18:14,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:14,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1723990265, now seen corresponding path program 1 times [2023-11-21 17:18:14,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:14,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676482240] [2023-11-21 17:18:14,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:14,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:14,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:14,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:14,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676482240] [2023-11-21 17:18:14,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676482240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 17:18:14,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 17:18:14,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 17:18:14,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491243358] [2023-11-21 17:18:14,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 17:18:14,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 17:18:14,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:14,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 17:18:14,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 17:18:14,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:14,678 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:14,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 17:18:14,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:14,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:14,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:14,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:14,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:14,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:14,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 17:18:14,833 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 17:18:14,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:14,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1723989304, now seen corresponding path program 1 times [2023-11-21 17:18:14,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:14,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56983481] [2023-11-21 17:18:14,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:14,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:15,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:15,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:15,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56983481] [2023-11-21 17:18:15,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56983481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 17:18:15,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 17:18:15,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 17:18:15,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13755134] [2023-11-21 17:18:15,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 17:18:15,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 17:18:15,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:15,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 17:18:15,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 17:18:15,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:15,024 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:15,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 17:18:15,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:15,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:15,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:15,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:15,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:15,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:15,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:15,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:15,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 17:18:15,173 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 17:18:15,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:15,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1273924472, now seen corresponding path program 1 times [2023-11-21 17:18:15,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:15,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85202822] [2023-11-21 17:18:15,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:15,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:15,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:15,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:15,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85202822] [2023-11-21 17:18:15,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85202822] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 17:18:15,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875976381] [2023-11-21 17:18:15,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:15,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:15,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:18:15,469 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 17:18:15,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 17:18:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:15,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 17:18:15,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 17:18:15,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 17:18:15,714 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 17:18:15,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875976381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 17:18:15,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 17:18:15,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 7 [2023-11-21 17:18:15,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485171110] [2023-11-21 17:18:15,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 17:18:15,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 17:18:15,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:15,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 17:18:15,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-21 17:18:15,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:15,732 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:15,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 17:18:15,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:15,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:15,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:15,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:15,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:15,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:15,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:15,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:15,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:15,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:15,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 17:18:16,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:16,112 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 17:18:16,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:16,112 INFO L85 PathProgramCache]: Analyzing trace with hash -836952416, now seen corresponding path program 1 times [2023-11-21 17:18:16,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:16,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184885102] [2023-11-21 17:18:16,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:16,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:16,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:16,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:16,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184885102] [2023-11-21 17:18:16,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184885102] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 17:18:16,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030641358] [2023-11-21 17:18:16,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:16,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:16,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:18:16,841 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 17:18:16,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 17:18:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:16,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-21 17:18:16,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 17:18:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 17:18:17,167 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 17:18:17,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030641358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 17:18:17,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 17:18:17,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-11-21 17:18:17,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634068172] [2023-11-21 17:18:17,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 17:18:17,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 17:18:17,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:17,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 17:18:17,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-21 17:18:17,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:17,177 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:17,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 17:18:17,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:17,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:17,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:17,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:17,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:17,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:17,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:17,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:17,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:17,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:17,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:17,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:17,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 17:18:17,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:17,607 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 17:18:17,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:17,608 INFO L85 PathProgramCache]: Analyzing trace with hash -836952415, now seen corresponding path program 1 times [2023-11-21 17:18:17,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:17,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994509669] [2023-11-21 17:18:17,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:17,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:18,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:18,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:18,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994509669] [2023-11-21 17:18:18,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994509669] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 17:18:18,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411910576] [2023-11-21 17:18:18,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:18,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:18,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:18:18,149 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 17:18:18,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 17:18:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:18,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-21 17:18:18,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 17:18:18,364 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 23 treesize of output 1 [2023-11-21 17:18:18,506 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 8 treesize of output 1 [2023-11-21 17:18:18,595 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 8 treesize of output 1 [2023-11-21 17:18:18,664 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 8 treesize of output 1 [2023-11-21 17:18:18,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:18,957 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 17:18:20,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 17:18:20,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 56 [2023-11-21 17:18:20,064 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 17:18:20,065 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 2636 treesize of output 2516 [2023-11-21 17:18:20,119 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 17:18:20,119 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 218 treesize of output 214 [2023-11-21 17:18:20,147 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 17:18:20,148 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 206 treesize of output 190 [2023-11-21 17:18:20,183 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 17:18:20,186 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 205 treesize of output 165 [2023-11-21 17:18:20,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:20,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411910576] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 17:18:20,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 17:18:20,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 22 [2023-11-21 17:18:20,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572044572] [2023-11-21 17:18:20,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 17:18:20,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-21 17:18:20,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:20,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-21 17:18:20,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=451, Unknown=5, NotChecked=0, Total=552 [2023-11-21 17:18:20,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:20,854 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:20,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.5217391304347827) internal successors, (81), 23 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 17:18:20,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:20,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:20,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:20,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:20,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:20,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:20,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:21,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:21,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:21,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:21,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:21,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:21,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:21,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 17:18:21,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 17:18:21,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:21,854 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 17:18:21,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:21,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1973309343, now seen corresponding path program 2 times [2023-11-21 17:18:21,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:21,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752964724] [2023-11-21 17:18:21,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:21,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:23,605 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:23,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:23,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752964724] [2023-11-21 17:18:23,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752964724] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 17:18:23,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030200737] [2023-11-21 17:18:23,606 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 17:18:23,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:23,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:18:23,608 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 17:18:23,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 17:18:23,725 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-21 17:18:23,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 17:18:23,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 17:18:23,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 17:18:23,886 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 17:18:23,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 17:18:23,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030200737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 17:18:23,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 17:18:23,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 13 [2023-11-21 17:18:23,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235855898] [2023-11-21 17:18:23,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 17:18:23,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 17:18:23,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:23,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 17:18:23,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-21 17:18:23,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:23,891 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:23,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 17:18:23,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-21 17:18:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:24,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:24,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:24,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:24,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:24,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:24,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:24,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 17:18:24,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:24,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 17:18:24,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:24,263 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 17:18:24,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:24,264 INFO L85 PathProgramCache]: Analyzing trace with hash 682464520, now seen corresponding path program 1 times [2023-11-21 17:18:24,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:24,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958970088] [2023-11-21 17:18:24,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:24,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:24,378 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 17:18:24,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:24,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958970088] [2023-11-21 17:18:24,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958970088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 17:18:24,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 17:18:24,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 17:18:24,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908033791] [2023-11-21 17:18:24,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 17:18:24,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 17:18:24,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:24,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 17:18:24,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 17:18:24,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:24,381 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:24,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 17:18:24,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:24,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:24,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:24,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:24,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:24,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:24,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-21 17:18:24,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:24,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:24,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:24,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:24,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:24,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:24,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:24,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:24,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 17:18:24,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:24,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:24,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 17:18:24,465 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 17:18:24,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:24,465 INFO L85 PathProgramCache]: Analyzing trace with hash -98182699, now seen corresponding path program 1 times [2023-11-21 17:18:24,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:24,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474984764] [2023-11-21 17:18:24,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:24,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:25,350 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:25,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:25,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474984764] [2023-11-21 17:18:25,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474984764] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 17:18:25,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232739975] [2023-11-21 17:18:25,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:25,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:25,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:18:25,352 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 17:18:25,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 17:18:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:25,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-21 17:18:25,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 17:18:26,004 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-11-21 17:18:26,005 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 23 treesize of output 10 [2023-11-21 17:18:26,033 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:26,033 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 17:18:26,116 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 17:18:26,116 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 27 treesize of output 19 [2023-11-21 17:18:26,778 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:26,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232739975] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 17:18:26,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 17:18:26,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 33 [2023-11-21 17:18:26,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598397057] [2023-11-21 17:18:26,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 17:18:26,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-11-21 17:18:26,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:26,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-11-21 17:18:26,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1025, Unknown=0, NotChecked=0, Total=1190 [2023-11-21 17:18:26,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:26,785 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:26,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 3.6176470588235294) internal successors, (123), 34 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 17:18:26,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:26,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:26,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:26,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:26,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:26,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:26,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-21 17:18:26,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:26,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:26,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:27,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:27,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:27,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:27,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:27,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:27,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:27,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 17:18:27,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:27,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:27,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-21 17:18:27,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 17:18:28,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-21 17:18:28,039 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 17:18:28,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:28,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1691853930, now seen corresponding path program 1 times [2023-11-21 17:18:28,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:28,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348112981] [2023-11-21 17:18:28,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:28,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:29,987 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:29,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:29,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348112981] [2023-11-21 17:18:29,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348112981] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 17:18:29,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135129446] [2023-11-21 17:18:29,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:29,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:29,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:18:29,991 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 17:18:29,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 17:18:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:30,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-21 17:18:30,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 17:18:30,635 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 17:18:30,636 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 17:18:30,952 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 17:18:30,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 51 [2023-11-21 17:18:31,112 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 17:18:31,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135129446] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 17:18:31,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 17:18:31,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 6] total 29 [2023-11-21 17:18:31,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867544841] [2023-11-21 17:18:31,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 17:18:31,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-21 17:18:31,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:31,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-21 17:18:31,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=818, Unknown=0, NotChecked=0, Total=930 [2023-11-21 17:18:31,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:31,121 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:31,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 4.2) internal successors, (126), 30 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 17:18:31,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-21 17:18:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:31,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:31,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-21 17:18:31,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:32,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 17:18:32,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:32,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:32,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:32,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:32,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:32,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 17:18:32,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 17:18:32,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 17:18:32,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-21 17:18:32,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-21 17:18:32,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-21 17:18:32,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:32,681 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 17:18:32,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:32,682 INFO L85 PathProgramCache]: Analyzing trace with hash -526991114, now seen corresponding path program 2 times [2023-11-21 17:18:32,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:32,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026547190] [2023-11-21 17:18:32,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:32,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:35,798 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:35,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:35,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026547190] [2023-11-21 17:18:35,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026547190] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 17:18:35,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943593563] [2023-11-21 17:18:35,799 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 17:18:35,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:35,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:18:35,801 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 17:18:35,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e3862d-0e5c-4445-b476-5606e2494b91/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 17:18:35,952 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 17:18:35,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 17:18:35,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-21 17:18:35,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 17:18:36,588 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 23 treesize of output 1 [2023-11-21 17:18:36,802 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 8 treesize of output 1 [2023-11-21 17:18:36,908 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 8 treesize of output 1 [2023-11-21 17:18:36,986 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 8 treesize of output 1 [2023-11-21 17:18:38,774 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:38,774 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 17:18:42,255 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 17:18:42,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 263 treesize of output 179 [2023-11-21 17:18:42,435 INFO L349 Elim1Store]: treesize reduction 60, result has 60.8 percent of original size [2023-11-21 17:18:42,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 2030 treesize of output 1982 [2023-11-21 17:18:42,713 INFO L349 Elim1Store]: treesize reduction 60, result has 60.8 percent of original size [2023-11-21 17:18:42,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 920 treesize of output 796 [2023-11-21 17:18:42,785 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 17:18:42,787 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 17:18:42,790 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 17:18:42,793 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 17:18:42,795 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 17:18:42,800 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 17:18:42,873 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 17:18:42,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 18 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 584 treesize of output 622 [2023-11-21 17:18:43,105 INFO L349 Elim1Store]: treesize reduction 60, result has 60.8 percent of original size [2023-11-21 17:18:43,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 583 treesize of output 567