./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a1f81f307bb0fd2f7d30845e458dba6e8acf9b3ee1da86e74967e4c3005bce62 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:18:36,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:18:36,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:18:36,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:18:36,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:18:36,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:18:36,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:18:36,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:18:36,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:18:36,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:18:36,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:18:36,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:18:36,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:18:36,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:18:36,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:18:36,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:18:36,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:18:36,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:18:36,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:18:36,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:18:36,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:18:36,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:18:36,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:18:36,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:18:36,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:18:36,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:18:36,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:18:36,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:18:36,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:18:36,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:18:36,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:18:36,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:18:36,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:18:36,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:18:36,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:18:36,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:18:36,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:18:36,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:18:36,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:18:36,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:18:36,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:18:36,545 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-23 14:18:36,609 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:18:36,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:18:36,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:18:36,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:18:36,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 14:18:36,629 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 14:18:36,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:18:36,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:18:36,632 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:18:36,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:18:36,634 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 14:18:36,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:18:36,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 14:18:36,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:18:36,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:18:36,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:18:36,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:18:36,637 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 14:18:36,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:18:36,640 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:18:36,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:18:36,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:18:36,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:18:36,650 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-23 14:18:36,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:18:36,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:18:36,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:18:36,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:18:36,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:18:36,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:18:36,653 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2021-11-23 14:18:36,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:18:36,653 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:18:36,654 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-23 14:18:36,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:18:36,654 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-23 14:18:36,655 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-23 14:18:36,658 INFO L138 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_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1f81f307bb0fd2f7d30845e458dba6e8acf9b3ee1da86e74967e4c3005bce62 [2021-11-23 14:18:37,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:18:37,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:18:37,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:18:37,085 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:18:37,086 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:18:37,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c [2021-11-23 14:18:37,180 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/data/71291a618/b990ccff13944730ac0a38cca9a7b4af/FLAG58ca2f347 [2021-11-23 14:18:37,732 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:18:37,733 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c [2021-11-23 14:18:37,743 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/data/71291a618/b990ccff13944730ac0a38cca9a7b4af/FLAG58ca2f347 [2021-11-23 14:18:38,061 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/data/71291a618/b990ccff13944730ac0a38cca9a7b4af [2021-11-23 14:18:38,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:18:38,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:18:38,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:18:38,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:18:38,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:18:38,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633f947f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38, skipping insertion in model container [2021-11-23 14:18:38,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:18:38,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:18:38,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c[2385,2398] [2021-11-23 14:18:38,358 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:18:38,368 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:18:38,408 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c[2385,2398] [2021-11-23 14:18:38,413 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:18:38,432 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:18:38,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38 WrapperNode [2021-11-23 14:18:38,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:18:38,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:18:38,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:18:38,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:18:38,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,492 INFO L137 Inliner]: procedures = 24, calls = 41, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 139 [2021-11-23 14:18:38,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:18:38,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:18:38,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:18:38,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:18:38,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:18:38,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:18:38,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:18:38,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:18:38,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:18:38,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:18:38,670 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:18:38,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:18:38,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:18:38,791 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 14:18:38,792 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 14:18:38,792 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 14:18:38,792 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 14:18:38,792 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 14:18:38,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 14:18:38,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:18:38,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:18:38,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 14:18:38,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 14:18:38,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:18:38,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:18:38,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 14:18:38,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:18:38,797 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 14:18:38,932 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:18:38,933 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:18:39,383 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:18:39,400 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:18:39,400 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-23 14:18:39,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:39 BoogieIcfgContainer [2021-11-23 14:18:39,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:18:39,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:18:39,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:18:39,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:18:39,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:18:38" (1/3) ... [2021-11-23 14:18:39,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c27ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:18:39, skipping insertion in model container [2021-11-23 14:18:39,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (2/3) ... [2021-11-23 14:18:39,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c27ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:18:39, skipping insertion in model container [2021-11-23 14:18:39,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:39" (3/3) ... [2021-11-23 14:18:39,429 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-parray-copy.wvr.c [2021-11-23 14:18:39,437 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 14:18:39,437 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:18:39,438 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 14:18:39,438 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 14:18:39,537 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,538 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,538 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,538 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,539 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,539 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,539 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,539 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,540 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,540 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,540 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,541 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,541 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,541 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,542 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,543 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,543 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,543 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,544 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,544 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,544 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,545 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,546 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,547 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,548 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,548 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,549 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,549 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,549 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,550 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,550 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,552 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,553 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,553 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,554 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,554 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,555 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,556 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,557 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,557 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,557 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,558 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,558 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,558 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,559 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,559 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,560 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,560 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,560 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,561 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,561 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,561 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,562 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,562 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,562 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,563 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,563 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,563 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,563 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,564 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,564 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,564 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,565 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,565 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,565 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,565 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,566 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,566 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,566 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,566 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,567 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,567 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,567 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,567 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,568 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,568 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,573 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,574 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,578 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,579 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,579 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,579 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,580 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,581 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,581 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,582 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,582 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,582 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:39,587 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-23 14:18:39,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-23 14:18:39,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:18:39,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-23 14:18:39,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-23 14:18:39,706 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-23 14:18:39,715 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 14:18:39,716 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-23 14:18:40,131 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:18:40,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:18:40,143 INFO L85 PathProgramCache]: Analyzing trace with hash -536178126, now seen corresponding path program 1 times [2021-11-23 14:18:40,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:18:40,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825026114] [2021-11-23 14:18:40,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:40,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:18:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:18:40,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:18:40,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:18:40,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825026114] [2021-11-23 14:18:40,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825026114] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:18:40,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:18:40,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:18:40,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728902485] [2021-11-23 14:18:40,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:18:40,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 14:18:40,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:18:40,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 14:18:40,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:18:40,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:40,602 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:18:40,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 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) [2021-11-23 14:18:40,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:40,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:40,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 14:18:40,725 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:18:40,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:18:40,730 INFO L85 PathProgramCache]: Analyzing trace with hash 208375611, now seen corresponding path program 1 times [2021-11-23 14:18:40,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:18:40,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278524217] [2021-11-23 14:18:40,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:40,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:18:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:18:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:18:41,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:18:41,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278524217] [2021-11-23 14:18:41,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278524217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:18:41,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:18:41,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 14:18:41,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729546403] [2021-11-23 14:18:41,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:18:41,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 14:18:41,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:18:41,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 14:18:41,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-23 14:18:41,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:41,477 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:18:41,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.0) internal successors, (144), 8 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:18:41,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:41,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:41,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:41,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:18:41,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 14:18:41,907 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:18:41,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:18:41,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1384359770, now seen corresponding path program 1 times [2021-11-23 14:18:41,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:18:41,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317450022] [2021-11-23 14:18:41,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:41,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:18:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:18:42,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:18:42,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:18:42,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317450022] [2021-11-23 14:18:42,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317450022] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:18:42,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612013329] [2021-11-23 14:18:42,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:42,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:18:42,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:18:42,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:18:42,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 14:18:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:18:42,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 14:18:42,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:18:43,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:18:43,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:18:43,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:18:43,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612013329] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 14:18:43,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 14:18:43,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2021-11-23 14:18:43,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227254938] [2021-11-23 14:18:43,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:18:43,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 14:18:43,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:18:43,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 14:18:43,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-11-23 14:18:43,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:43,606 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:18:43,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 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) [2021-11-23 14:18:43,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:43,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:18:43,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:43,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:43,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:18:43,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:18:43,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 14:18:44,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:18:44,081 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:18:44,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:18:44,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1812192704, now seen corresponding path program 1 times [2021-11-23 14:18:44,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:18:44,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107654979] [2021-11-23 14:18:44,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:44,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:18:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:18:44,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:18:44,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:18:44,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107654979] [2021-11-23 14:18:44,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107654979] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:18:44,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638186678] [2021-11-23 14:18:44,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:44,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:18:44,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:18:44,402 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:18:44,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 14:18:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:18:44,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 14:18:44,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:18:45,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:18:45,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:18:45,752 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:18:45,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638186678] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 14:18:45,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 14:18:45,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2021-11-23 14:18:45,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573651110] [2021-11-23 14:18:45,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:18:45,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 14:18:45,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:18:45,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 14:18:45,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-11-23 14:18:45,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:45,758 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:18:45,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.333333333333332) internal successors, (165), 9 states have internal predecessors, (165), 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) [2021-11-23 14:18:45,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:45,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:18:45,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:18:45,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:46,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:46,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:18:46,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:18:46,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:18:46,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 14:18:46,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:18:46,256 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:18:46,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:18:46,257 INFO L85 PathProgramCache]: Analyzing trace with hash 2119229814, now seen corresponding path program 1 times [2021-11-23 14:18:46,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:18:46,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437250438] [2021-11-23 14:18:46,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:46,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:18:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:18:48,898 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:18:48,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:18:48,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437250438] [2021-11-23 14:18:48,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437250438] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:18:48,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663225483] [2021-11-23 14:18:48,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:48,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:18:48,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:18:48,902 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:18:48,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 14:18:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:18:49,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-23 14:18:49,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:18:49,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 14:18:50,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-23 14:18:51,523 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 14:18:51,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-23 14:18:51,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-23 14:18:52,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 13 [2021-11-23 14:18:52,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 13 [2021-11-23 14:18:53,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 13 [2021-11-23 14:18:53,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 14:18:53,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2021-11-23 14:18:54,264 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:56,384 INFO L354 Elim1Store]: treesize reduction 106, result has 6.2 percent of original size [2021-11-23 14:18:56,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 31 [2021-11-23 14:18:56,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:18:56,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:19:15,706 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 14:19:15,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663225483] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:19:15,707 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:19:15,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 42, 19] total 87 [2021-11-23 14:19:15,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124585402] [2021-11-23 14:19:15,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:19:15,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2021-11-23 14:19:15,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:19:15,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2021-11-23 14:19:15,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=7165, Unknown=9, NotChecked=0, Total=7482 [2021-11-23 14:19:15,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:15,718 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:19:15,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 5.241379310344827) internal successors, (456), 87 states have internal predecessors, (456), 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) [2021-11-23 14:19:15,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:15,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:19:15,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:19:15,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:19:15,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:49,302 WARN L227 SmtUtils]: Spent 7.12s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 14:19:51,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:51,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:19:51,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:19:51,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:19:51,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-11-23 14:19:51,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-23 14:19:52,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:19:52,041 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:19:52,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:19:52,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1286572198, now seen corresponding path program 2 times [2021-11-23 14:19:52,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:19:52,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652666243] [2021-11-23 14:19:52,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:19:52,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:19:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:19:52,411 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:19:52,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:19:52,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652666243] [2021-11-23 14:19:52,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652666243] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:19:52,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487028879] [2021-11-23 14:19:52,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 14:19:52,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:19:52,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:19:52,420 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:19:52,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 14:19:52,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 14:19:52,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:19:52,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 14:19:52,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:19:53,791 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-23 14:19:53,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:19:54,602 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-23 14:19:54,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487028879] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:19:54,602 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:19:54,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14, 14] total 34 [2021-11-23 14:19:54,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253974733] [2021-11-23 14:19:54,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:19:54,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-23 14:19:54,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:19:54,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-23 14:19:54,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=959, Unknown=0, NotChecked=0, Total=1122 [2021-11-23 14:19:54,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:54,607 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:19:54,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.529411764705882) internal successors, (290), 34 states have internal predecessors, (290), 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) [2021-11-23 14:19:54,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:54,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:19:54,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:19:54,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:19:54,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-11-23 14:19:54,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:56,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:19:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:19:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:19:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-11-23 14:19:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:19:56,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-23 14:19:56,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:19:56,266 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:19:56,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:19:56,267 INFO L85 PathProgramCache]: Analyzing trace with hash 54561896, now seen corresponding path program 3 times [2021-11-23 14:19:56,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:19:56,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778851738] [2021-11-23 14:19:56,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:19:56,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:19:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:19:56,443 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:19:56,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:19:56,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778851738] [2021-11-23 14:19:56,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778851738] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:19:56,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895155515] [2021-11-23 14:19:56,445 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 14:19:56,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:19:56,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:19:56,447 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:19:56,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 14:19:56,605 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-23 14:19:56,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:19:56,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 14:19:56,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:19:57,352 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:19:57,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:19:58,024 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:19:58,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895155515] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:19:58,024 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:19:58,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2021-11-23 14:19:58,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655562570] [2021-11-23 14:19:58,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:19:58,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-23 14:19:58,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:19:58,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-23 14:19:58,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2021-11-23 14:19:58,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:58,028 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:19:58,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 11.5) internal successors, (276), 24 states have internal predecessors, (276), 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) [2021-11-23 14:19:58,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:58,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:19:58,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:19:58,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:19:58,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-11-23 14:19:58,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:19:58,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:20:00,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:20:00,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:20:00,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:20:00,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 14:20:00,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-11-23 14:20:00,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:20:00,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:20:00,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 14:20:00,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:20:00,613 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:20:00,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:20:00,613 INFO L85 PathProgramCache]: Analyzing trace with hash -290839002, now seen corresponding path program 1 times [2021-11-23 14:20:00,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:20:00,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362715669] [2021-11-23 14:20:00,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:20:00,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:20:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:20:00,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:20:00,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:20:00,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362715669] [2021-11-23 14:20:00,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362715669] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:20:00,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272616727] [2021-11-23 14:20:00,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:20:00,850 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:20:00,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:20:00,853 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:20:00,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 14:20:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:20:00,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 14:20:00,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:20:01,826 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:20:01,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:20:02,549 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:20:02,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272616727] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:20:02,550 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:20:02,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2021-11-23 14:20:02,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249114583] [2021-11-23 14:20:02,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:20:02,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-23 14:20:02,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:20:02,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-23 14:20:02,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=592, Unknown=0, NotChecked=0, Total=702 [2021-11-23 14:20:02,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:20:02,553 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:20:02,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.88888888888889) internal successors, (267), 27 states have internal predecessors, (267), 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) [2021-11-23 14:20:02,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:20:02,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:20:02,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:20:02,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-23 14:20:02,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-11-23 14:20:02,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:20:02,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:20:02,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:20:04,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:20:04,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:20:04,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:20:04,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 14:20:04,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-11-23 14:20:04,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:20:04,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:20:04,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-23 14:20:04,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 14:20:04,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:20:04,582 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:20:04,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:20:04,583 INFO L85 PathProgramCache]: Analyzing trace with hash 617964284, now seen corresponding path program 4 times [2021-11-23 14:20:04,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:20:04,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018816291] [2021-11-23 14:20:04,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:20:04,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:20:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:20:06,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:20:06,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:20:06,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018816291] [2021-11-23 14:20:06,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018816291] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:20:06,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212261482] [2021-11-23 14:20:06,055 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 14:20:06,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:20:06,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:20:06,057 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:20:06,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 14:20:06,175 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 14:20:06,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:20:06,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-23 14:20:06,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:20:06,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 14:20:06,837 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 14:20:06,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-23 14:20:08,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2021-11-23 14:20:08,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2021-11-23 14:20:09,336 INFO L354 Elim1Store]: treesize reduction 76, result has 8.4 percent of original size [2021-11-23 14:20:09,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 26 [2021-11-23 14:20:09,373 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:20:09,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:20:40,883 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 14:20:40,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 264 treesize of output 250 [2021-11-23 14:20:43,018 INFO L354 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2021-11-23 14:20:43,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 608 treesize of output 524 [2021-11-23 14:20:43,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 523 treesize of output 499 [2021-11-23 14:20:43,190 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2021-11-23 14:20:43,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 369 treesize of output 280 [2021-11-23 14:20:43,268 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-11-23 14:20:43,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 523 treesize of output 1 [2021-11-23 14:20:43,592 INFO L354 Elim1Store]: treesize reduction 33, result has 32.7 percent of original size [2021-11-23 14:20:43,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 490 treesize of output 386 [2021-11-23 14:20:43,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:20:43,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:20:43,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:20:43,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 14:20:43,733 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 14:20:43,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:20:43,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 278 [2021-11-23 14:20:43,813 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 14:20:43,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 278 treesize of output 1 [2021-11-23 14:20:43,837 INFO L354 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2021-11-23 14:20:43,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 635 treesize of output 551 [2021-11-23 14:21:22,993 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:21:22,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212261482] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:21:22,993 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:21:22,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 33, 25] total 69 [2021-11-23 14:21:22,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675721345] [2021-11-23 14:21:22,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:21:22,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2021-11-23 14:21:22,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:21:22,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-11-23 14:21:22,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=524, Invalid=4134, Unknown=34, NotChecked=0, Total=4692 [2021-11-23 14:21:22,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:23,000 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:21:23,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 5.797101449275362) internal successors, (400), 69 states have internal predecessors, (400), 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) [2021-11-23 14:21:23,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:23,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:21:23,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:21:23,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-23 14:21:23,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-11-23 14:21:23,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:21:23,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:21:23,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-23 14:21:23,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:57,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:57,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:21:57,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:21:57,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 14:21:57,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-11-23 14:21:57,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:21:57,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-23 14:21:57,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-23 14:21:57,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-23 14:21:57,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 14:21:58,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:21:58,152 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:21:58,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:58,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1854972284, now seen corresponding path program 5 times [2021-11-23 14:21:58,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:58,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968026855] [2021-11-23 14:21:58,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:58,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:58,385 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 14:21:58,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:21:58,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968026855] [2021-11-23 14:21:58,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968026855] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:21:58,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555236775] [2021-11-23 14:21:58,386 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-23 14:21:58,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:21:58,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:21:58,387 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:21:58,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 14:21:58,506 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-11-23 14:21:58,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:21:58,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 14:21:58,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:21:59,079 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 14:21:59,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:21:59,690 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 14:21:59,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555236775] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:21:59,691 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:21:59,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2021-11-23 14:21:59,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857655784] [2021-11-23 14:21:59,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:21:59,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-23 14:21:59,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:21:59,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-23 14:21:59,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2021-11-23 14:21:59,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:59,695 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:21:59,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.923076923076923) internal successors, (232), 26 states have internal predecessors, (232), 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) [2021-11-23 14:21:59,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:59,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:21:59,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:21:59,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-23 14:21:59,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-11-23 14:21:59,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:21:59,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-23 14:21:59,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-23 14:21:59,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-11-23 14:21:59,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:03,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:03,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:22:03,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:22:03,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 14:22:03,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-11-23 14:22:03,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-23 14:22:03,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-23 14:22:03,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-23 14:22:03,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-23 14:22:03,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-23 14:22:03,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-23 14:22:03,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 14:22:03,752 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:22:03,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:03,753 INFO L85 PathProgramCache]: Analyzing trace with hash 656639685, now seen corresponding path program 6 times [2021-11-23 14:22:03,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:03,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204187684] [2021-11-23 14:22:03,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:03,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:03,937 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 14:22:03,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:03,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204187684] [2021-11-23 14:22:03,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204187684] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:22:03,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916565948] [2021-11-23 14:22:03,938 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-23 14:22:03,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:03,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:03,940 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:22:03,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 14:22:04,094 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-11-23 14:22:04,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:22:04,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 14:22:04,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:22:04,760 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 14:22:04,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:22:05,489 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 14:22:05,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916565948] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:22:05,490 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:22:05,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2021-11-23 14:22:05,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905240467] [2021-11-23 14:22:05,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:22:05,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-23 14:22:05,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:05,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-23 14:22:05,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2021-11-23 14:22:05,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:05,497 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:05,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 11.791666666666666) internal successors, (283), 24 states have internal predecessors, (283), 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) [2021-11-23 14:22:05,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:05,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:22:05,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:22:05,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-23 14:22:05,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-11-23 14:22:05,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-11-23 14:22:05,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-11-23 14:22:05,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-11-23 14:22:05,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-11-23 14:22:05,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-23 14:22:05,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:06,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:22:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:22:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 14:22:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-11-23 14:22:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-23 14:22:06,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-23 14:22:06,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-23 14:22:06,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-23 14:22:06,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-23 14:22:06,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-23 14:22:06,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-23 14:22:06,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-23 14:22:06,471 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:22:06,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:06,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1527202899, now seen corresponding path program 7 times [2021-11-23 14:22:06,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:06,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294217562] [2021-11-23 14:22:06,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:06,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 14:22:06,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:06,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294217562] [2021-11-23 14:22:06,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294217562] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:22:06,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926445248] [2021-11-23 14:22:06,724 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-23 14:22:06,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:06,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:06,725 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:22:06,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 14:22:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:06,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 14:22:06,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:22:07,636 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 14:22:07,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:22:08,342 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 14:22:08,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926445248] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:22:08,343 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:22:08,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 28 [2021-11-23 14:22:08,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569110700] [2021-11-23 14:22:08,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:22:08,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-23 14:22:08,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:08,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-23 14:22:08,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2021-11-23 14:22:08,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:08,348 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:08,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.928571428571429) internal successors, (278), 28 states have internal predecessors, (278), 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) [2021-11-23 14:22:08,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:08,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:22:08,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:22:08,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-23 14:22:08,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-11-23 14:22:08,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-11-23 14:22:08,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-11-23 14:22:08,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-11-23 14:22:08,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-11-23 14:22:08,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-23 14:22:08,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-23 14:22:08,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:09,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:09,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:22:09,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:22:09,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 14:22:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-11-23 14:22:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-23 14:22:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-23 14:22:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-23 14:22:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-23 14:22:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-23 14:22:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-23 14:22:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:22:09,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-23 14:22:09,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:09,518 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:22:09,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:09,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1653724163, now seen corresponding path program 8 times [2021-11-23 14:22:09,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:09,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187516645] [2021-11-23 14:22:09,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:09,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 14:22:13,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:13,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187516645] [2021-11-23 14:22:13,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187516645] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:22:13,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425270511] [2021-11-23 14:22:13,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 14:22:13,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:13,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:13,593 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:22:13,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-23 14:22:13,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 14:22:13,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:22:13,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 81 conjunts are in the unsatisfiable core [2021-11-23 14:22:13,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:22:13,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 14:22:14,237 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 14:22:14,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-23 14:22:15,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-23 14:22:15,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2021-11-23 14:22:16,383 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-11-23 14:22:16,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2021-11-23 14:22:16,844 INFO L354 Elim1Store]: treesize reduction 57, result has 17.4 percent of original size [2021-11-23 14:22:16,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 50 [2021-11-23 14:22:17,153 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:22:19,270 INFO L354 Elim1Store]: treesize reduction 234, result has 18.5 percent of original size [2021-11-23 14:22:19,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 81 [2021-11-23 14:22:19,314 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 14:22:19,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:22:56,296 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:22:56,368 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 14:22:56,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 86556 treesize of output 82468 [2021-11-23 14:22:56,555 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2021-11-23 14:22:56,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-23 14:22:56,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:56,776 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:162) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:243) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:233) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 14:22:56,780 INFO L158 Benchmark]: Toolchain (without parser) took 258713.88ms. Allocated memory was 94.4MB in the beginning and 262.1MB in the end (delta: 167.8MB). Free memory was 52.0MB in the beginning and 190.8MB in the end (delta: -138.9MB). Peak memory consumption was 166.8MB. Max. memory is 16.1GB. [2021-11-23 14:22:56,780 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 94.4MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:22:56,781 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.11ms. Allocated memory is still 94.4MB. Free memory was 51.8MB in the beginning and 72.8MB in the end (delta: -21.0MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2021-11-23 14:22:56,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.57ms. Allocated memory is still 94.4MB. Free memory was 72.8MB in the beginning and 71.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:22:56,781 INFO L158 Benchmark]: Boogie Preprocessor took 74.07ms. Allocated memory is still 94.4MB. Free memory was 71.1MB in the beginning and 69.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:22:56,782 INFO L158 Benchmark]: RCFGBuilder took 835.32ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 69.6MB in the beginning and 76.9MB in the end (delta: -7.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 14:22:56,782 INFO L158 Benchmark]: TraceAbstraction took 257372.50ms. Allocated memory was 113.2MB in the beginning and 262.1MB in the end (delta: 148.9MB). Free memory was 76.2MB in the beginning and 190.8MB in the end (delta: -114.6MB). Peak memory consumption was 173.4MB. Max. memory is 16.1GB. [2021-11-23 14:22:56,784 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 94.4MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.11ms. Allocated memory is still 94.4MB. Free memory was 51.8MB in the beginning and 72.8MB in the end (delta: -21.0MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.57ms. Allocated memory is still 94.4MB. Free memory was 72.8MB in the beginning and 71.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.07ms. Allocated memory is still 94.4MB. Free memory was 71.1MB in the beginning and 69.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 835.32ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 69.6MB in the beginning and 76.9MB in the end (delta: -7.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 257372.50ms. Allocated memory was 113.2MB in the beginning and 262.1MB in the end (delta: 148.9MB). Free memory was 76.2MB in the beginning and 190.8MB in the end (delta: -114.6MB). Peak memory consumption was 173.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 14:22:56,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-11-23 14:22:57,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a1f81f307bb0fd2f7d30845e458dba6e8acf9b3ee1da86e74967e4c3005bce62 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:22:59,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:22:59,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:22:59,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:22:59,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:22:59,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:22:59,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:22:59,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:22:59,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:22:59,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:22:59,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:22:59,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:22:59,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:22:59,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:22:59,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:22:59,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:22:59,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:22:59,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:22:59,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:22:59,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:22:59,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:22:59,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:22:59,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:22:59,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:22:59,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:22:59,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:22:59,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:22:59,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:22:59,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:22:59,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:22:59,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:22:59,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:22:59,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:22:59,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:22:59,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:22:59,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:22:59,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:22:59,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:22:59,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:22:59,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:22:59,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:22:59,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2021-11-23 14:22:59,724 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:22:59,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:22:59,725 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:22:59,726 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:22:59,726 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 14:22:59,727 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 14:22:59,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:22:59,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:22:59,729 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:22:59,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:22:59,730 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 14:22:59,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 14:22:59,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:22:59,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:22:59,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:22:59,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:22:59,732 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 14:22:59,732 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 14:22:59,732 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 14:22:59,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:22:59,733 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:22:59,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:22:59,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:22:59,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:22:59,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:22:59,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:22:59,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:22:59,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:22:59,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:22:59,736 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-23 14:22:59,736 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2021-11-23 14:22:59,737 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 14:22:59,737 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:22:59,737 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-23 14:22:59,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:22:59,738 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-23 14:22:59,738 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-23 14:22:59,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 14:22:59,739 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1f81f307bb0fd2f7d30845e458dba6e8acf9b3ee1da86e74967e4c3005bce62 [2021-11-23 14:23:00,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:23:00,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:23:00,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:23:00,201 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:23:00,202 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:23:00,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c [2021-11-23 14:23:00,298 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/data/987f76476/44eccb750c164a42a4e2b5b8d8a5dd41/FLAG930b0f728 [2021-11-23 14:23:00,934 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:23:00,935 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c [2021-11-23 14:23:00,946 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/data/987f76476/44eccb750c164a42a4e2b5b8d8a5dd41/FLAG930b0f728 [2021-11-23 14:23:01,270 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/data/987f76476/44eccb750c164a42a4e2b5b8d8a5dd41 [2021-11-23 14:23:01,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:23:01,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:23:01,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:23:01,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:23:01,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:23:01,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:23:01" (1/1) ... [2021-11-23 14:23:01,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e7c144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:01, skipping insertion in model container [2021-11-23 14:23:01,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:23:01" (1/1) ... [2021-11-23 14:23:01,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:23:01,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:23:01,515 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c[2385,2398] [2021-11-23 14:23:01,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:23:01,565 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:23:01,675 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c[2385,2398] [2021-11-23 14:23:01,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:23:01,712 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:23:01,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:01 WrapperNode [2021-11-23 14:23:01,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:23:01,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:23:01,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:23:01,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:23:01,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:01" (1/1) ... [2021-11-23 14:23:01,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:01" (1/1) ... [2021-11-23 14:23:01,792 INFO L137 Inliner]: procedures = 26, calls = 41, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 134 [2021-11-23 14:23:01,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:23:01,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:23:01,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:23:01,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:23:01,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:01" (1/1) ... [2021-11-23 14:23:01,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:01" (1/1) ... [2021-11-23 14:23:01,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:01" (1/1) ... [2021-11-23 14:23:01,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:01" (1/1) ... [2021-11-23 14:23:01,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:01" (1/1) ... [2021-11-23 14:23:01,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:01" (1/1) ... [2021-11-23 14:23:01,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:01" (1/1) ... [2021-11-23 14:23:01,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:23:01,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:23:01,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:23:01,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:23:01,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:01" (1/1) ... [2021-11-23 14:23:01,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:23:01,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:23:01,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:23:01,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:23:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:23:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 14:23:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:23:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 14:23:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 14:23:01,932 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 14:23:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 14:23:01,933 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 14:23:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 14:23:01,933 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 14:23:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 14:23:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:23:01,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:23:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:23:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 14:23:01,936 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 14:23:02,031 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:23:02,033 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:23:02,438 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:23:02,451 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:23:02,451 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-23 14:23:02,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:02 BoogieIcfgContainer [2021-11-23 14:23:02,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:23:02,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:23:02,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:23:02,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:23:02,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:23:01" (1/3) ... [2021-11-23 14:23:02,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d018efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:02, skipping insertion in model container [2021-11-23 14:23:02,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:01" (2/3) ... [2021-11-23 14:23:02,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d018efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:02, skipping insertion in model container [2021-11-23 14:23:02,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:02" (3/3) ... [2021-11-23 14:23:02,478 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-parray-copy.wvr.c [2021-11-23 14:23:02,484 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 14:23:02,484 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:23:02,485 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 14:23:02,485 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 14:23:02,564 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,565 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,565 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,566 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,566 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,566 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,567 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,567 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,569 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,569 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,569 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,570 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,571 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,571 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,571 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,572 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,573 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,573 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,573 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,574 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,574 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,574 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,575 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,575 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,576 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,577 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,577 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,577 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,578 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,578 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,579 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,579 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,581 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,582 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,582 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,582 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,583 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,583 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,583 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,584 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,584 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,584 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,584 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,585 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,585 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,586 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,586 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,586 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,588 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,588 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,588 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,589 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,589 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,589 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,590 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,590 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,599 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,600 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,600 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,600 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,601 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,601 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,601 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,601 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,602 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,602 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,602 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,603 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,604 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,604 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,607 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,607 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,608 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,608 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,609 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,610 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,610 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,610 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,611 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,615 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,615 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,615 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,616 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,616 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,619 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,620 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,620 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,620 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,621 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,625 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,625 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,626 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,628 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,628 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,629 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,630 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:23:02,638 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-23 14:23:02,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-23 14:23:02,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:23:02,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-23 14:23:02,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-23 14:23:02,781 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-23 14:23:02,794 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 14:23:02,795 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-23 14:23:03,130 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:23:03,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:23:03,136 INFO L85 PathProgramCache]: Analyzing trace with hash 2130001710, now seen corresponding path program 1 times [2021-11-23 14:23:03,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:23:03,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522164734] [2021-11-23 14:23:03,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:23:03,151 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:23:03,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:23:03,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:23:03,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 14:23:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:23:03,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 14:23:03,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:23:03,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:23:03,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:23:03,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:23:03,925 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:23:03,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522164734] [2021-11-23 14:23:03,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522164734] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:23:03,926 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:23:03,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 14:23:03,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267488636] [2021-11-23 14:23:03,929 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:23:03,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 14:23:03,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:23:03,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 14:23:03,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:23:03,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:03,960 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:23:03,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 74.0) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:23:03,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:04,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:04,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-23 14:23:04,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:23:04,233 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:23:04,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:23:04,234 INFO L85 PathProgramCache]: Analyzing trace with hash 878444877, now seen corresponding path program 1 times [2021-11-23 14:23:04,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:23:04,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984625985] [2021-11-23 14:23:04,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:23:04,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:23:04,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:23:04,240 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:23:04,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 14:23:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:23:04,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 14:23:04,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:23:05,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:23:05,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:23:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:23:05,806 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:23:05,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984625985] [2021-11-23 14:23:05,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1984625985] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:23:05,806 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:23:05,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 6] imperfect sequences [] total 18 [2021-11-23 14:23:05,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580233473] [2021-11-23 14:23:05,808 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:23:05,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-23 14:23:05,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:23:05,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-23 14:23:05,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-11-23 14:23:05,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:05,819 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:23:05,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.38888888888889) internal successors, (223), 18 states have internal predecessors, (223), 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) [2021-11-23 14:23:05,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:05,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:07,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:07,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-23 14:23:07,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 14:23:07,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:23:07,619 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:23:07,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:23:07,620 INFO L85 PathProgramCache]: Analyzing trace with hash 622051327, now seen corresponding path program 1 times [2021-11-23 14:23:07,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:23:07,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103659164] [2021-11-23 14:23:07,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:23:07,621 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:23:07,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:23:07,623 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:23:07,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 14:23:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:23:07,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 14:23:07,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:23:08,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:23:08,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:23:09,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:23:09,131 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:23:09,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103659164] [2021-11-23 14:23:09,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103659164] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:23:09,131 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:23:09,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 8] imperfect sequences [] total 20 [2021-11-23 14:23:09,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211242551] [2021-11-23 14:23:09,132 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:23:09,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-23 14:23:09,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:23:09,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-23 14:23:09,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2021-11-23 14:23:09,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:09,134 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:23:09,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 12.0) internal successors, (240), 20 states have internal predecessors, (240), 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) [2021-11-23 14:23:09,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:09,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-23 14:23:09,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:11,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:11,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-23 14:23:11,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-23 14:23:12,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 14:23:12,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:23:12,197 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:23:12,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:23:12,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1764231767, now seen corresponding path program 1 times [2021-11-23 14:23:12,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:23:12,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685430421] [2021-11-23 14:23:12,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:23:12,199 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:23:12,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:23:12,200 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:23:12,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 14:23:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:23:12,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-23 14:23:12,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:23:12,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 14:23:13,242 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 14:23:13,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 18 [2021-11-23 14:23:14,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 14:23:14,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-23 14:23:15,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29 [2021-11-23 14:23:17,584 INFO L354 Elim1Store]: treesize reduction 66, result has 9.6 percent of original size [2021-11-23 14:23:17,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 32 [2021-11-23 14:23:17,752 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 14:23:17,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:23:41,289 INFO L354 Elim1Store]: treesize reduction 62, result has 49.6 percent of original size [2021-11-23 14:23:41,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 17062 treesize of output 14050 [2021-11-23 14:23:41,644 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 14:23:41,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 14554 treesize of output 13806 [2021-11-23 14:23:41,790 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:23:41,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685430421] [2021-11-23 14:23:41,791 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2021-11-23 14:23:41,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 14:23:42,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:23:42,015 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:162) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:243) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:233) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 14:23:42,020 INFO L158 Benchmark]: Toolchain (without parser) took 40745.69ms. Allocated memory was 56.6MB in the beginning and 121.6MB in the end (delta: 65.0MB). Free memory was 34.9MB in the beginning and 64.6MB in the end (delta: -29.7MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. [2021-11-23 14:23:42,021 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 56.6MB. Free memory was 37.2MB in the beginning and 37.2MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:23:42,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.61ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 34.7MB in the beginning and 52.0MB in the end (delta: -17.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 14:23:42,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.51ms. Allocated memory is still 69.2MB. Free memory was 51.8MB in the beginning and 50.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:23:42,023 INFO L158 Benchmark]: Boogie Preprocessor took 54.80ms. Allocated memory is still 69.2MB. Free memory was 50.0MB in the beginning and 48.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:23:42,024 INFO L158 Benchmark]: RCFGBuilder took 619.38ms. Allocated memory is still 69.2MB. Free memory was 48.2MB in the beginning and 48.9MB in the end (delta: -688.6kB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2021-11-23 14:23:42,025 INFO L158 Benchmark]: TraceAbstraction took 39548.68ms. Allocated memory was 69.2MB in the beginning and 121.6MB in the end (delta: 52.4MB). Free memory was 48.4MB in the beginning and 64.6MB in the end (delta: -16.2MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. [2021-11-23 14:23:42,029 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 56.6MB. Free memory was 37.2MB in the beginning and 37.2MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.61ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 34.7MB in the beginning and 52.0MB in the end (delta: -17.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.51ms. Allocated memory is still 69.2MB. Free memory was 51.8MB in the beginning and 50.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.80ms. Allocated memory is still 69.2MB. Free memory was 50.0MB in the beginning and 48.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 619.38ms. Allocated memory is still 69.2MB. Free memory was 48.2MB in the beginning and 48.9MB in the end (delta: -688.6kB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * TraceAbstraction took 39548.68ms. Allocated memory was 69.2MB in the beginning and 121.6MB in the end (delta: 52.4MB). Free memory was 48.4MB in the beginning and 64.6MB in the end (delta: -16.2MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 14:23:42,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-11-23 14:23:42,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0b93fc-252f-4dc7-83fc-4afafc0608f0/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range