./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/triangular-longer-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/triangular-longer-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7 --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 ff437623f349039c7c835e26d53647ec95811c37 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 01:23:46,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 01:23:46,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 01:23:46,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 01:23:46,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 01:23:46,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 01:23:46,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 01:23:46,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 01:23:46,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 01:23:46,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 01:23:46,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 01:23:46,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 01:23:46,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 01:23:46,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 01:23:46,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 01:23:46,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 01:23:46,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 01:23:46,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 01:23:46,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 01:23:46,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 01:23:46,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 01:23:46,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 01:23:46,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 01:23:46,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 01:23:46,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 01:23:46,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 01:23:46,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 01:23:46,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 01:23:46,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 01:23:46,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 01:23:46,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 01:23:46,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 01:23:46,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 01:23:46,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 01:23:46,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 01:23:46,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 01:23:46,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 01:23:46,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 01:23:46,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 01:23:46,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 01:23:46,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 01:23:46,486 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-10-16 01:23:46,514 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 01:23:46,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 01:23:46,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-16 01:23:46,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-16 01:23:46,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 01:23:46,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 01:23:46,516 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 01:23:46,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 01:23:46,517 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 01:23:46,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 01:23:46,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 01:23:46,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 01:23:46,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 01:23:46,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 01:23:46,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 01:23:46,518 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 01:23:46,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 01:23:46,519 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 01:23:46,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 01:23:46,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 01:23:46,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 01:23:46,520 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 01:23:46,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 01:23:46,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:23:46,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 01:23:46,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 01:23:46,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 01:23:46,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 01:23:46,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 01:23:46,522 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 01:23:46,522 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-16 01:23:46,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 01:23:46,522 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-16 01:23:46,522 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-16 01:23:46,523 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_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff437623f349039c7c835e26d53647ec95811c37 [2021-10-16 01:23:46,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 01:23:46,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 01:23:46,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 01:23:46,859 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 01:23:46,860 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 01:23:46,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/../../sv-benchmarks/c/pthread/triangular-longer-2.i [2021-10-16 01:23:46,932 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/data/3cc735c09/15cb14a430034a768de310c7438385d3/FLAGa90296cad [2021-10-16 01:23:47,564 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 01:23:47,565 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/sv-benchmarks/c/pthread/triangular-longer-2.i [2021-10-16 01:23:47,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/data/3cc735c09/15cb14a430034a768de310c7438385d3/FLAGa90296cad [2021-10-16 01:23:47,813 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/data/3cc735c09/15cb14a430034a768de310c7438385d3 [2021-10-16 01:23:47,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 01:23:47,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 01:23:47,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 01:23:47,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 01:23:47,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 01:23:47,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:23:47" (1/1) ... [2021-10-16 01:23:47,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174573ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:47, skipping insertion in model container [2021-10-16 01:23:47,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:23:47" (1/1) ... [2021-10-16 01:23:47,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 01:23:47,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 01:23:48,341 WARN L228 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_498fe6d0-5efd-40be-9a0c-9254fbdcf608/sv-benchmarks/c/pthread/triangular-longer-2.i[30963,30976] [2021-10-16 01:23:48,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:23:48,359 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 01:23:48,423 WARN L228 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_498fe6d0-5efd-40be-9a0c-9254fbdcf608/sv-benchmarks/c/pthread/triangular-longer-2.i[30963,30976] [2021-10-16 01:23:48,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:23:48,478 INFO L208 MainTranslator]: Completed translation [2021-10-16 01:23:48,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:48 WrapperNode [2021-10-16 01:23:48,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 01:23:48,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 01:23:48,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 01:23:48,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 01:23:48,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:48" (1/1) ... [2021-10-16 01:23:48,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:48" (1/1) ... [2021-10-16 01:23:48,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 01:23:48,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 01:23:48,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 01:23:48,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 01:23:48,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:48" (1/1) ... [2021-10-16 01:23:48,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:48" (1/1) ... [2021-10-16 01:23:48,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:48" (1/1) ... [2021-10-16 01:23:48,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:48" (1/1) ... [2021-10-16 01:23:48,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:48" (1/1) ... [2021-10-16 01:23:48,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:48" (1/1) ... [2021-10-16 01:23:48,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:48" (1/1) ... [2021-10-16 01:23:48,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 01:23:48,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 01:23:48,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 01:23:48,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 01:23:48,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:48" (1/1) ... [2021-10-16 01:23:48,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:23:48,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:23:48,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 01:23:48,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 01:23:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-10-16 01:23:48,680 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-10-16 01:23:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-10-16 01:23:48,680 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-10-16 01:23:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 01:23:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-16 01:23:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 01:23:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 01:23:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 01:23:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-16 01:23:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 01:23:48,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 01:23:48,683 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 01:23:49,019 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 01:23:49,019 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-16 01:23:49,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:23:49 BoogieIcfgContainer [2021-10-16 01:23:49,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 01:23:49,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 01:23:49,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 01:23:49,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 01:23:49,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:23:47" (1/3) ... [2021-10-16 01:23:49,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6a2eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:23:49, skipping insertion in model container [2021-10-16 01:23:49,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:48" (2/3) ... [2021-10-16 01:23:49,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6a2eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:23:49, skipping insertion in model container [2021-10-16 01:23:49,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:23:49" (3/3) ... [2021-10-16 01:23:49,030 INFO L111 eAbstractionObserver]: Analyzing ICFG triangular-longer-2.i [2021-10-16 01:23:49,035 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-16 01:23:49,036 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 01:23:49,036 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 01:23:49,036 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 01:23:49,062 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,062 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,062 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,062 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,063 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,063 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,063 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,063 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,064 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,064 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,064 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,065 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,065 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,065 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,065 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,065 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,066 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,066 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,066 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,066 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,067 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,067 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,067 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,067 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,067 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,068 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,068 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,068 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,068 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,069 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,069 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,069 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,069 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,069 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,070 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,070 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,070 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,070 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,071 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,071 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,071 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,071 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,071 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,072 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,072 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,072 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,072 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,072 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,073 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,073 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,073 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,073 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,074 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,074 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,074 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,074 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,077 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,077 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,078 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,078 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,078 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,078 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,083 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,083 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,083 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,083 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,084 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,084 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:23:49,086 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-16 01:23:49,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-16 01:23:49,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:23:49,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-16 01:23:49,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-16 01:23:49,164 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-16 01:23:49,170 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, mConcurrency=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 [2021-10-16 01:23:49,170 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-16 01:23:49,302 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:23:49,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:23:49,308 INFO L82 PathProgramCache]: Analyzing trace with hash 2112281486, now seen corresponding path program 1 times [2021-10-16 01:23:49,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:23:49,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668157806] [2021-10-16 01:23:49,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:23:49,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:23:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:23:49,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:23:49,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:23:49,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668157806] [2021-10-16 01:23:49,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668157806] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:23:49,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:23:49,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-16 01:23:49,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869822497] [2021-10-16 01:23:49,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 01:23:49,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:23:49,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 01:23:49,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 01:23:49,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:49,847 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:23:49,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:23:49,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:23:49,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 01:23:49,965 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:23:49,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:23:49,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1321544354, now seen corresponding path program 1 times [2021-10-16 01:23:49,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:23:49,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707979882] [2021-10-16 01:23:49,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:23:49,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:23:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:23:50,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:23:50,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:23:50,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707979882] [2021-10-16 01:23:50,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707979882] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:23:50,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:23:50,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:23:50,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173002272] [2021-10-16 01:23:50,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:23:50,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:23:50,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:23:50,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:23:50,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:50,028 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:23:50,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:23:50,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:23:50,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:50,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:23:50,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:23:50,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 01:23:50,069 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:23:50,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:23:50,070 INFO L82 PathProgramCache]: Analyzing trace with hash -893287732, now seen corresponding path program 1 times [2021-10-16 01:23:50,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:23:50,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375470945] [2021-10-16 01:23:50,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:23:50,072 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:23:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:23:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:23:50,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:23:50,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375470945] [2021-10-16 01:23:50,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375470945] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:23:50,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685949838] [2021-10-16 01:23:50,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:23:50,195 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:23:50,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:23:50,198 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:23:50,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 01:23:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:23:50,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 01:23:50,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:23:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:23:50,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685949838] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:23:50,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:23:50,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-16 01:23:50,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236207659] [2021-10-16 01:23:50,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 01:23:50,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:23:50,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 01:23:50,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-16 01:23:50,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:50,652 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:23:50,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:23:50,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:23:50,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:23:50,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:50,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:23:50,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:23:50,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:23:50,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-16 01:23:50,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:23:50,940 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:23:50,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:23:50,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1491858914, now seen corresponding path program 2 times [2021-10-16 01:23:50,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:23:50,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519693737] [2021-10-16 01:23:50,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:23:50,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:23:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:23:51,077 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:23:51,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:23:51,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519693737] [2021-10-16 01:23:51,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519693737] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:23:51,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033282805] [2021-10-16 01:23:51,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 01:23:51,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:23:51,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:23:51,090 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:23:51,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-16 01:23:51,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 01:23:51,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:23:51,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 01:23:51,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:23:51,374 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:23:51,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033282805] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:23:51,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:23:51,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-10-16 01:23:51,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687801016] [2021-10-16 01:23:51,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 01:23:51,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:23:51,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 01:23:51,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-16 01:23:51,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:51,379 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:23:51,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:23:51,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:23:51,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:23:51,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:23:51,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:51,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:23:51,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:23:51,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:23:51,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:23:51,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-16 01:23:51,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:23:51,685 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:23:51,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:23:51,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1741994484, now seen corresponding path program 3 times [2021-10-16 01:23:51,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:23:51,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203376091] [2021-10-16 01:23:51,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:23:51,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:23:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:23:51,787 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:23:51,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:23:51,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203376091] [2021-10-16 01:23:51,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203376091] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:23:51,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162560770] [2021-10-16 01:23:51,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-16 01:23:51,795 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:23:51,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:23:51,806 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:23:51,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-16 01:23:51,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-16 01:23:51,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:23:51,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 01:23:51,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:23:52,463 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-16 01:23:52,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162560770] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:23:52,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:23:52,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-10-16 01:23:52,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666181497] [2021-10-16 01:23:52,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-16 01:23:52,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:23:52,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-16 01:23:52,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-10-16 01:23:52,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:52,471 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:23:52,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.533333333333333) internal successors, (98), 15 states have internal predecessors, (98), 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) [2021-10-16 01:23:52,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:23:52,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:23:52,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:23:52,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:23:52,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:52,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:23:52,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:23:52,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:23:52,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:23:52,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:23:52,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-16 01:23:53,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:23:53,110 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:23:53,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:23:53,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1904809963, now seen corresponding path program 1 times [2021-10-16 01:23:53,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:23:53,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418332] [2021-10-16 01:23:53,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:23:53,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:23:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:23:53,257 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:23:53,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:23:53,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418332] [2021-10-16 01:23:53,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418332] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:23:53,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109439725] [2021-10-16 01:23:53,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:23:53,258 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:23:53,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:23:53,262 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:23:53,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-16 01:23:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:23:53,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-16 01:23:53,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:23:53,657 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:23:53,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109439725] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:23:53,657 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:23:53,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 15 [2021-10-16 01:23:53,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440661472] [2021-10-16 01:23:53,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-16 01:23:53,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:23:53,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-16 01:23:53,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-10-16 01:23:53,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:53,660 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:23:53,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:23:53,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:23:53,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:23:53,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:23:53,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:23:53,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:23:53,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:53,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:23:53,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:23:53,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:23:53,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:23:53,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:23:53,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:23:53,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-16 01:23:54,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-16 01:23:54,046 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:23:54,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:23:54,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1558543531, now seen corresponding path program 2 times [2021-10-16 01:23:54,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:23:54,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422689099] [2021-10-16 01:23:54,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:23:54,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:23:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:23:54,300 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:23:54,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:23:54,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422689099] [2021-10-16 01:23:54,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422689099] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:23:54,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954453847] [2021-10-16 01:23:54,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 01:23:54,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:23:54,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:23:54,306 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:23:54,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-16 01:23:54,507 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 01:23:54,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:23:54,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-16 01:23:54,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:23:54,775 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:23:54,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954453847] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:23:54,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:23:54,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 19 [2021-10-16 01:23:54,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790246744] [2021-10-16 01:23:54,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-16 01:23:54,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:23:54,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-16 01:23:54,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-10-16 01:23:54,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:54,779 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:23:54,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.526315789473684) internal successors, (86), 19 states have internal predecessors, (86), 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) [2021-10-16 01:23:54,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:23:54,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:23:54,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:23:54,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:23:54,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:23:54,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:23:54,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:55,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:23:55,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:23:55,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:23:55,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:23:55,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:23:55,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:23:55,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:23:55,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-16 01:23:55,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:23:55,258 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:23:55,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:23:55,259 INFO L82 PathProgramCache]: Analyzing trace with hash -962924181, now seen corresponding path program 3 times [2021-10-16 01:23:55,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:23:55,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820164558] [2021-10-16 01:23:55,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:23:55,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:23:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:23:55,537 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 2 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:23:55,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:23:55,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820164558] [2021-10-16 01:23:55,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820164558] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:23:55,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268556757] [2021-10-16 01:23:55,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-16 01:23:55,540 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:23:55,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:23:55,542 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:23:55,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-16 01:23:55,756 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-16 01:23:55,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:23:55,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 01:23:55,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:23:56,490 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-10-16 01:23:56,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268556757] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:23:56,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:23:56,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 10] total 29 [2021-10-16 01:23:56,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116112525] [2021-10-16 01:23:56,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-16 01:23:56,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:23:56,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-16 01:23:56,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=671, Unknown=0, NotChecked=0, Total=812 [2021-10-16 01:23:56,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:56,494 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:23:56,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.931034482758621) internal successors, (143), 29 states have internal predecessors, (143), 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) [2021-10-16 01:23:56,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:23:56,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:23:56,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:23:56,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:23:56,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:23:56,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:23:56,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:23:56,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:57,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:23:57,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:23:57,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:23:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:23:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:23:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:23:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:23:57,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-16 01:23:57,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-16 01:23:57,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:23:57,920 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:23:57,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:23:57,921 INFO L82 PathProgramCache]: Analyzing trace with hash 166204932, now seen corresponding path program 4 times [2021-10-16 01:23:57,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:23:57,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777830593] [2021-10-16 01:23:57,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:23:57,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:23:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:23:58,263 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 253 proven. 37 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 01:23:58,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:23:58,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777830593] [2021-10-16 01:23:58,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777830593] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:23:58,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869518595] [2021-10-16 01:23:58,264 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-16 01:23:58,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:23:58,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:23:58,269 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:23:58,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-16 01:23:58,493 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-16 01:23:58,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:23:58,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-16 01:23:58,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:23:58,801 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 01:23:58,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869518595] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:23:58,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 01:23:58,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [23] total 25 [2021-10-16 01:23:58,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863664197] [2021-10-16 01:23:58,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-16 01:23:58,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:23:58,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-16 01:23:58,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2021-10-16 01:23:58,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:58,809 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:23:58,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.391304347826087) internal successors, (101), 23 states have internal predecessors, (101), 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) [2021-10-16 01:23:58,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:23:58,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:23:58,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:23:58,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:23:58,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:23:58,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:23:58,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:23:58,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-16 01:23:58,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:23:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:23:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:23:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:23:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:23:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:23:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:23:59,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:23:59,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-10-16 01:23:59,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:23:59,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-16 01:23:59,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-10-16 01:23:59,670 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:23:59,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:23:59,670 INFO L82 PathProgramCache]: Analyzing trace with hash -782241386, now seen corresponding path program 5 times [2021-10-16 01:23:59,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:23:59,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958303337] [2021-10-16 01:23:59,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:23:59,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:23:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:23:59,899 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-10-16 01:23:59,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:23:59,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958303337] [2021-10-16 01:23:59,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958303337] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:23:59,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431699198] [2021-10-16 01:23:59,900 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-16 01:23:59,900 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:23:59,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:23:59,903 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:23:59,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-16 01:24:00,208 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-10-16 01:24:00,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:00,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-16 01:24:00,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:00,808 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-10-16 01:24:00,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431699198] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:00,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:00,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2021-10-16 01:24:00,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560645993] [2021-10-16 01:24:00,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-16 01:24:00,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:00,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-16 01:24:00,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-10-16 01:24:00,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:00,811 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:00,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 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) [2021-10-16 01:24:00,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:24:00,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:00,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:00,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:00,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:00,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:00,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:00,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-10-16 01:24:00,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:24:00,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:01,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:24:01,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-16 01:24:01,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:24:01,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:01,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:01,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:01,666 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:24:01,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:01,666 INFO L82 PathProgramCache]: Analyzing trace with hash -441743441, now seen corresponding path program 6 times [2021-10-16 01:24:01,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:01,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124355941] [2021-10-16 01:24:01,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:01,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-10-16 01:24:01,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:01,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124355941] [2021-10-16 01:24:01,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124355941] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:01,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637083758] [2021-10-16 01:24:01,948 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-16 01:24:01,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:01,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:01,949 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:01,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-16 01:24:02,329 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-10-16 01:24:02,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:02,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-16 01:24:02,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:02,994 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-10-16 01:24:02,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637083758] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:02,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:02,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 16 [2021-10-16 01:24:02,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007878008] [2021-10-16 01:24:02,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-16 01:24:02,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:02,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-16 01:24:02,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2021-10-16 01:24:02,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:02,997 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:02,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.375) internal successors, (102), 16 states have internal predecessors, (102), 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) [2021-10-16 01:24:02,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:24:02,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:02,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:02,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:02,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:02,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:02,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:02,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-10-16 01:24:02,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:24:02,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:02,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:03,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:24:03,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:03,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:03,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:03,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:03,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:03,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:03,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-10-16 01:24:03,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:24:03,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:03,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-16 01:24:03,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:03,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-16 01:24:03,918 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:24:03,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:03,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1745055764, now seen corresponding path program 7 times [2021-10-16 01:24:03,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:03,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273336389] [2021-10-16 01:24:03,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:03,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:03,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:04,233 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 213 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-16 01:24:04,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:04,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273336389] [2021-10-16 01:24:04,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273336389] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:04,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996758270] [2021-10-16 01:24:04,234 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-16 01:24:04,235 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:04,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:04,238 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:04,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-16 01:24:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:04,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-16 01:24:04,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:05,421 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 213 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-16 01:24:05,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996758270] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:05,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:05,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 19 [2021-10-16 01:24:05,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898148532] [2021-10-16 01:24:05,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-16 01:24:05,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:05,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-16 01:24:05,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2021-10-16 01:24:05,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:05,427 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:05,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 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) [2021-10-16 01:24:05,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:24:05,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:05,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:05,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:05,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:05,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:05,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:05,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-10-16 01:24:05,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:24:05,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:05,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-16 01:24:05,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:06,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:24:06,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:06,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:06,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:06,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:06,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:06,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:06,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-10-16 01:24:06,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:24:06,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:06,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-16 01:24:06,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:06,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:06,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-16 01:24:06,382 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:24:06,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:06,382 INFO L82 PathProgramCache]: Analyzing trace with hash 884568325, now seen corresponding path program 8 times [2021-10-16 01:24:06,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:06,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109595014] [2021-10-16 01:24:06,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:06,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:06,656 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 257 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-16 01:24:06,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:06,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109595014] [2021-10-16 01:24:06,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109595014] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:06,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15992] [2021-10-16 01:24:06,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 01:24:06,658 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:06,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:06,659 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:06,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-16 01:24:07,177 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 01:24:07,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:07,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-16 01:24:07,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:07,906 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 257 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-16 01:24:07,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15992] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:07,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:07,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 21 [2021-10-16 01:24:07,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140625387] [2021-10-16 01:24:07,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 01:24:07,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:07,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 01:24:07,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2021-10-16 01:24:07,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:07,909 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:07,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.904761904761905) internal successors, (124), 21 states have internal predecessors, (124), 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) [2021-10-16 01:24:07,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:24:07,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:07,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:07,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:07,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:07,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:07,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:07,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2021-10-16 01:24:07,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:24:07,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:07,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-16 01:24:07,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:07,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:08,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:24:08,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:08,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:08,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:08,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:08,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:08,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:08,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-10-16 01:24:08,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:24:08,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:08,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-16 01:24:08,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:08,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:08,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-10-16 01:24:08,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-16 01:24:08,986 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:24:08,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:08,986 INFO L82 PathProgramCache]: Analyzing trace with hash 662148930, now seen corresponding path program 9 times [2021-10-16 01:24:08,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:08,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665210316] [2021-10-16 01:24:08,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:08,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:09,305 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-16 01:24:09,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:09,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665210316] [2021-10-16 01:24:09,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665210316] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:09,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549660909] [2021-10-16 01:24:09,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-16 01:24:09,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:09,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:09,307 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:09,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-16 01:24:09,990 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-10-16 01:24:09,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:09,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-16 01:24:09,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:10,721 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-16 01:24:10,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549660909] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:10,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:10,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 22 [2021-10-16 01:24:10,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838644518] [2021-10-16 01:24:10,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-16 01:24:10,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:10,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-16 01:24:10,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2021-10-16 01:24:10,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:10,724 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:10,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.0) internal successors, (132), 22 states have internal predecessors, (132), 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) [2021-10-16 01:24:10,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:24:10,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:10,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:10,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:10,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:10,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:10,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:10,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-10-16 01:24:10,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:24:10,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:10,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-16 01:24:10,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:10,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:10,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:11,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:24:11,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-16 01:24:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2021-10-16 01:24:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:24:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-16 01:24:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:11,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-16 01:24:11,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-16 01:24:11,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-16 01:24:11,876 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:24:11,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:11,876 INFO L82 PathProgramCache]: Analyzing trace with hash -151362725, now seen corresponding path program 10 times [2021-10-16 01:24:11,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:11,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440613255] [2021-10-16 01:24:11,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:11,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:12,172 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-16 01:24:12,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:12,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440613255] [2021-10-16 01:24:12,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440613255] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:12,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293682155] [2021-10-16 01:24:12,174 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-16 01:24:12,174 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:12,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:12,176 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:12,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-16 01:24:12,747 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-16 01:24:12,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:12,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-16 01:24:12,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:13,479 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-16 01:24:13,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293682155] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:13,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:13,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 24 [2021-10-16 01:24:13,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021445448] [2021-10-16 01:24:13,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-16 01:24:13,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:13,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-16 01:24:13,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-10-16 01:24:13,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:13,482 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:13,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.916666666666667) internal successors, (142), 24 states have internal predecessors, (142), 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) [2021-10-16 01:24:13,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:24:13,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:13,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:13,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:13,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-16 01:24:13,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:13,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:13,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2021-10-16 01:24:13,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:24:13,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:13,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-16 01:24:13,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:13,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:13,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-16 01:24:13,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:14,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:24:14,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:14,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:14,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:14,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-16 01:24:14,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:14,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:14,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2021-10-16 01:24:14,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:24:14,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:14,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-16 01:24:14,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:14,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:14,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-16 01:24:14,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:14,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:14,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:14,774 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:24:14,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:14,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1919514728, now seen corresponding path program 11 times [2021-10-16 01:24:14,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:14,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346125680] [2021-10-16 01:24:14,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:14,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:15,133 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 389 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 01:24:15,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:15,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346125680] [2021-10-16 01:24:15,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346125680] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:15,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114565773] [2021-10-16 01:24:15,134 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-16 01:24:15,134 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:15,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:15,140 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:15,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-16 01:24:15,782 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-10-16 01:24:15,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:15,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-16 01:24:15,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:16,538 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 389 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 01:24:16,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114565773] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:16,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:16,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 26 [2021-10-16 01:24:16,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985171160] [2021-10-16 01:24:16,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-16 01:24:16,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:16,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-16 01:24:16,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=506, Unknown=0, NotChecked=0, Total=650 [2021-10-16 01:24:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:16,543 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:16,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.846153846153846) internal successors, (152), 26 states have internal predecessors, (152), 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) [2021-10-16 01:24:16,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:24:16,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:16,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:16,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:16,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-16 01:24:16,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:16,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:16,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2021-10-16 01:24:16,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:24:16,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:16,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-16 01:24:16,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:16,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:16,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-16 01:24:16,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:16,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:17,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 01:24:17,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:17,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:17,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:17,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-16 01:24:17,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:17,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:17,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2021-10-16 01:24:17,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:24:17,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:17,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-16 01:24:17,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:17,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:17,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-16 01:24:17,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-16 01:24:17,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-16 01:24:17,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:17,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:17,839 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 01:24:17,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:17,839 INFO L82 PathProgramCache]: Analyzing trace with hash -168042831, now seen corresponding path program 12 times [2021-10-16 01:24:17,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:17,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170211123] [2021-10-16 01:24:17,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:17,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 01:24:17,875 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 01:24:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 01:24:17,956 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-16 01:24:17,956 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 01:24:17,957 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 01:24:17,959 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 01:24:17,960 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-16 01:24:17,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-16 01:24:17,973 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 01:24:17,973 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 01:24:18,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:24:18 BasicIcfg [2021-10-16 01:24:18,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 01:24:18,145 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 01:24:18,145 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 01:24:18,146 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 01:24:18,146 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:23:49" (3/4) ... [2021-10-16 01:24:18,148 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 01:24:18,287 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/witness.graphml [2021-10-16 01:24:18,287 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 01:24:18,288 INFO L168 Benchmark]: Toolchain (without parser) took 30464.82 ms. Allocated memory was 146.8 MB in the beginning and 310.4 MB in the end (delta: 163.6 MB). Free memory was 110.9 MB in the beginning and 176.5 MB in the end (delta: -65.7 MB). Peak memory consumption was 97.9 MB. Max. memory is 16.1 GB. [2021-10-16 01:24:18,289 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory was 57.2 MB in the beginning and 57.2 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 01:24:18,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.37 ms. Allocated memory is still 146.8 MB. Free memory was 110.4 MB in the beginning and 113.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 01:24:18,290 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.09 ms. Allocated memory is still 146.8 MB. Free memory was 113.9 MB in the beginning and 112.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 01:24:18,290 INFO L168 Benchmark]: Boogie Preprocessor took 49.78 ms. Allocated memory is still 146.8 MB. Free memory was 112.4 MB in the beginning and 111.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 01:24:18,290 INFO L168 Benchmark]: RCFGBuilder took 424.02 ms. Allocated memory is still 146.8 MB. Free memory was 110.6 MB in the beginning and 99.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 01:24:18,291 INFO L168 Benchmark]: TraceAbstraction took 29118.08 ms. Allocated memory was 146.8 MB in the beginning and 310.4 MB in the end (delta: 163.6 MB). Free memory was 98.6 MB in the beginning and 203.8 MB in the end (delta: -105.2 MB). Peak memory consumption was 186.4 MB. Max. memory is 16.1 GB. [2021-10-16 01:24:18,291 INFO L168 Benchmark]: Witness Printer took 141.90 ms. Allocated memory is still 310.4 MB. Free memory was 203.8 MB in the beginning and 176.5 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-16 01:24:18,294 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory was 57.2 MB in the beginning and 57.2 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 653.37 ms. Allocated memory is still 146.8 MB. Free memory was 110.4 MB in the beginning and 113.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.09 ms. Allocated memory is still 146.8 MB. Free memory was 113.9 MB in the beginning and 112.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.78 ms. Allocated memory is still 146.8 MB. Free memory was 112.4 MB in the beginning and 111.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 424.02 ms. Allocated memory is still 146.8 MB. Free memory was 110.6 MB in the beginning and 99.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 29118.08 ms. Allocated memory was 146.8 MB in the beginning and 310.4 MB in the end (delta: 163.6 MB). Free memory was 98.6 MB in the beginning and 203.8 MB in the end (delta: -105.2 MB). Peak memory consumption was 186.4 MB. Max. memory is 16.1 GB. * Witness Printer took 141.90 ms. Allocated memory is still 310.4 MB. Free memory was 203.8 MB in the beginning and 176.5 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 26871, positive: 24458, positive conditional: 23553, positive unconditional: 905, negative: 2413, negative conditional: 2407, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24738, positive: 24458, positive conditional: 23553, positive unconditional: 905, negative: 280, negative conditional: 274, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 24738, positive: 24458, positive conditional: 23553, positive unconditional: 905, negative: 280, negative conditional: 274, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26554, positive: 24458, positive conditional: 23505, positive unconditional: 953, negative: 2096, negative conditional: 1816, negative unconditional: 280, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 26554, positive: 24458, positive conditional: 14526, positive unconditional: 9932, negative: 2096, negative conditional: 1196, negative unconditional: 900, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 26554, positive: 24458, positive conditional: 14526, positive unconditional: 9932, negative: 2096, negative conditional: 1196, negative unconditional: 900, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1063, positive: 902, positive conditional: 97, positive unconditional: 805, negative: 161, negative conditional: 155, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1063, positive: 805, positive conditional: 0, positive unconditional: 805, negative: 258, negative conditional: 0, negative unconditional: 258, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 258, positive: 97, positive conditional: 97, positive unconditional: 0, negative: 161, negative conditional: 155, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 468, positive: 152, positive conditional: 152, positive unconditional: 0, negative: 316, negative conditional: 250, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 26554, positive: 23556, positive conditional: 14429, positive unconditional: 9127, negative: 1935, negative conditional: 1041, negative unconditional: 894, unknown: 1063, unknown conditional: 252, unknown unconditional: 811] , Statistics on independence cache: Total cache size (in pairs): 1063, Positive cache size: 902, Positive conditional cache size: 97, Positive unconditional cache size: 805, Negative cache size: 161, Negative conditional cache size: 155, Negative unconditional cache size: 6, Eliminated conditions: 9599, Maximal queried relation: 15, Independence queries for same thread: 2133 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 127, Number of persistent set computation: 99, Number of trivial persistent sets: 78, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 911, positive: 905, positive conditional: 0, positive unconditional: 905, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 26871, positive: 24458, positive conditional: 23553, positive unconditional: 905, negative: 2413, negative conditional: 2407, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24738, positive: 24458, positive conditional: 23553, positive unconditional: 905, negative: 280, negative conditional: 274, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 24738, positive: 24458, positive conditional: 23553, positive unconditional: 905, negative: 280, negative conditional: 274, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26554, positive: 24458, positive conditional: 23505, positive unconditional: 953, negative: 2096, negative conditional: 1816, negative unconditional: 280, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 26554, positive: 24458, positive conditional: 14526, positive unconditional: 9932, negative: 2096, negative conditional: 1196, negative unconditional: 900, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 26554, positive: 24458, positive conditional: 14526, positive unconditional: 9932, negative: 2096, negative conditional: 1196, negative unconditional: 900, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1063, positive: 902, positive conditional: 97, positive unconditional: 805, negative: 161, negative conditional: 155, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1063, positive: 805, positive conditional: 0, positive unconditional: 805, negative: 258, negative conditional: 0, negative unconditional: 258, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 258, positive: 97, positive conditional: 97, positive unconditional: 0, negative: 161, negative conditional: 155, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 468, positive: 152, positive conditional: 152, positive unconditional: 0, negative: 316, negative conditional: 250, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 26554, positive: 23556, positive conditional: 14429, positive unconditional: 9127, negative: 1935, negative conditional: 1041, negative unconditional: 894, unknown: 1063, unknown conditional: 252, unknown unconditional: 811] , Statistics on independence cache: Total cache size (in pairs): 1063, Positive cache size: 902, Positive conditional cache size: 97, Positive unconditional cache size: 805, Negative cache size: 161, Negative conditional cache size: 155, Negative unconditional cache size: 6, Eliminated conditions: 9599, Maximal queried relation: 15, Independence queries for same thread: 2133 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L694] 0 int i = 3, j = 6; VAL [i=3, j=6] [L712] 0 pthread_t id1, id2; VAL [i=3, j=6] [L713] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arg={0:0}, i=3, j=6] [L714] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arg={0:0}, arg={0:0}, i=3, j=6] [L716] 0 int condI = i >= (2*10 +6); VAL [arg={0:0}, arg={0:0}, i=3, j=6] [L696] 1 int k = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=1] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=1] [L704] 2 int k = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=1, k=0] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=0, k=1] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=0] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=2, k=0] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=2, k=0] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=2, k=1] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=2] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=1] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=1, k=2] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=1, k=3] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=3, k=1] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=2, k=3] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=2, k=3] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=4, k=2] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=2, k=4] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=4, k=3] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=3] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=3, k=4] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=3, k=5] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=5, k=3] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=5, k=4] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=5] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=4] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=4] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=6, k=4] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=6, k=4] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=6] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=6] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=18, k=6, k=5] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=5, k=6] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=7, k=5] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=7, k=5] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=7] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=7] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=20, k=6, k=7] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=6] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=8, k=6] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=6, k=8] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=8, k=7] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=8] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=8, k=7] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=7, k=8] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=9, k=7] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=9, k=7] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=8, k=9] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=8, k=9] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=8, k=9] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=8, k=9] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=10, k=8] [L696] COND FALSE 1 !(k < 10) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=8, k=10] [L704] 2 k++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=10, k=9] [L704] COND TRUE 2 k < 10 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=10, k=9] [L706] 2 j = i + 1 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=26, k=9, k=10] [L719] 0 int condJ = j >= (2*10 +6); VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=26, k=10, k=9] [L721] COND TRUE 0 condI || condJ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=26, k=10, k=9] [L722] 0 reach_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=26, k=10, k=9] - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 84 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 28843.1ms, OverallIterations: 17, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.5ms, PartialOrderReductionTime: 9229.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 426, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 265.3ms SsaConstructionTime, 984.2ms SatisfiabilityAnalysisTime, 10700.3ms InterpolantComputationTime, 2837 NumberOfCodeBlocks, 2788 NumberOfCodeBlocksAsserted, 78 NumberOfCheckSat, 2671 ConstructedInterpolants, 0 QuantifiedInterpolants, 13205 SizeOfPredicates, 158 NumberOfNonLiveVariables, 2792 ConjunctsInSsa, 213 ConjunctsInUnsatCore, 30 InterpolantComputations, 3 PerfectInterpolantSequences, 1363/5636 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-16 01:24:18,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:18,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498fe6d0-5efd-40be-9a0c-9254fbdcf608/bin/ugemcutter-qKN3xmkmp7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...