./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/13_unverif.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-ext/13_unverif.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa --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 ea403ebfe777a86c8f08ec54b02dc30e546c8fae743fed5fb0e88129df40ac76 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:27:55,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:27:55,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:27:55,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:27:55,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:27:55,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:27:55,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:27:55,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:27:55,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:27:55,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:27:55,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:27:55,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:27:55,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:27:55,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:27:55,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:27:55,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:27:55,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:27:55,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:27:55,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:27:55,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:27:55,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:27:55,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:27:55,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:27:55,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:27:55,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:27:55,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:27:55,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:27:55,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:27:55,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:27:55,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:27:55,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:27:55,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:27:55,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:27:55,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:27:55,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:27:55,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:27:55,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:27:55,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:27:55,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:27:55,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:27:55,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:27:55,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-09 08:27:55,601 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:27:55,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:27:55,605 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:27:55,605 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:27:55,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:27:55,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:27:55,614 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:27:55,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:27:55,614 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:27:55,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:27:55,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:27:55,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:27:55,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:27:55,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:27:55,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:27:55,617 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:27:55,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:27:55,617 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:27:55,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:27:55,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:27:55,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:27:55,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-09 08:27:55,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:27:55,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:27:55,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:27:55,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:27:55,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:27:55,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:27:55,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:27:55,620 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:27:55,620 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-09 08:27:55,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:27:55,621 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-09 08:27:55,621 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-09 08:27:55,621 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_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea403ebfe777a86c8f08ec54b02dc30e546c8fae743fed5fb0e88129df40ac76 [2021-11-09 08:27:55,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:27:55,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:27:55,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:27:55,941 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:27:55,942 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:27:55,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/../../sv-benchmarks/c/pthread-ext/13_unverif.i [2021-11-09 08:27:56,002 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/data/508441162/15f43fb87c49457f9489b271bd383ef7/FLAGa1507a84c [2021-11-09 08:27:56,464 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:27:56,465 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/sv-benchmarks/c/pthread-ext/13_unverif.i [2021-11-09 08:27:56,478 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/data/508441162/15f43fb87c49457f9489b271bd383ef7/FLAGa1507a84c [2021-11-09 08:27:56,790 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/data/508441162/15f43fb87c49457f9489b271bd383ef7 [2021-11-09 08:27:56,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:27:56,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:27:56,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:27:56,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:27:56,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:27:56,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:27:56" (1/1) ... [2021-11-09 08:27:56,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cecd4ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:27:56, skipping insertion in model container [2021-11-09 08:27:56,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:27:56" (1/1) ... [2021-11-09 08:27:56,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:27:56,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:27:57,295 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_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/sv-benchmarks/c/pthread-ext/13_unverif.i[30213,30226] [2021-11-09 08:27:57,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:27:57,322 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:27:57,380 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_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/sv-benchmarks/c/pthread-ext/13_unverif.i[30213,30226] [2021-11-09 08:27:57,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:27:57,432 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:27:57,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:27:57 WrapperNode [2021-11-09 08:27:57,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:27:57,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:27:57,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:27:57,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:27:57,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:27:57" (1/1) ... [2021-11-09 08:27:57,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:27:57" (1/1) ... [2021-11-09 08:27:57,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:27:57,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:27:57,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:27:57,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:27:57,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:27:57" (1/1) ... [2021-11-09 08:27:57,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:27:57" (1/1) ... [2021-11-09 08:27:57,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:27:57" (1/1) ... [2021-11-09 08:27:57,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:27:57" (1/1) ... [2021-11-09 08:27:57,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:27:57" (1/1) ... [2021-11-09 08:27:57,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:27:57" (1/1) ... [2021-11-09 08:27:57,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:27:57" (1/1) ... [2021-11-09 08:27:57,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:27:57,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:27:57,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:27:57,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:27:57,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:27:57" (1/1) ... [2021-11-09 08:27:57,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:27:57,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:27:57,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:27:57,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:27:57,654 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-09 08:27:57,654 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-09 08:27:57,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 08:27:57,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:27:57,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:27:57,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:27:57,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:27:57,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:27:57,660 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-09 08:27:58,059 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:27:58,059 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-09 08:27:58,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:27:58 BoogieIcfgContainer [2021-11-09 08:27:58,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:27:58,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:27:58,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:27:58,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:27:58,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:27:56" (1/3) ... [2021-11-09 08:27:58,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11223215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:27:58, skipping insertion in model container [2021-11-09 08:27:58,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:27:57" (2/3) ... [2021-11-09 08:27:58,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11223215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:27:58, skipping insertion in model container [2021-11-09 08:27:58,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:27:58" (3/3) ... [2021-11-09 08:27:58,071 INFO L111 eAbstractionObserver]: Analyzing ICFG 13_unverif.i [2021-11-09 08:27:58,077 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-09 08:27:58,077 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:27:58,078 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 08:27:58,078 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-09 08:27:58,097 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,098 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,098 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,098 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,098 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,099 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,099 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,099 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,099 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,100 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,100 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,100 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,100 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,101 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,101 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,101 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,102 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,102 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,102 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,102 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,102 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,103 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,103 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,103 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,103 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,104 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,107 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,107 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,107 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,107 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,108 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,108 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,108 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:58,110 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-09 08:27:58,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-09 08:27:58,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:27:58,161 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-09 08:27:58,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-09 08:27:58,190 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2021-11-09 08:27:58,195 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:27:58,195 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:27:58,262 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:27:58,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:27:58,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1646159162, now seen corresponding path program 1 times [2021-11-09 08:27:58,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:27:58,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648524605] [2021-11-09 08:27:58,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:27:58,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:27:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:27:58,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:27:58,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:27:58,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648524605] [2021-11-09 08:27:58,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648524605] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:27:58,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:27:58,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 08:27:58,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452816723] [2021-11-09 08:27:58,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:27:58,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:27:58,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:27:58,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:27:58,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:27:58,829 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:27:58,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:27:58,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:27:58,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:27:58,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:27:58,915 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:27:58,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:27:58,916 INFO L85 PathProgramCache]: Analyzing trace with hash 791883345, now seen corresponding path program 1 times [2021-11-09 08:27:58,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:27:58,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070867611] [2021-11-09 08:27:58,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:27:58,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:27:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:27:59,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:27:59,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:27:59,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070867611] [2021-11-09 08:27:59,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070867611] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:27:59,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:27:59,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:27:59,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437077572] [2021-11-09 08:27:59,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:27:59,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:27:59,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:27:59,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:27:59,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:27:59,126 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:27:59,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:27:59,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:27:59,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:27:59,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:27:59,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:27:59,179 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:27:59,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 08:27:59,188 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-09 08:27:59,189 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2021-11-09 08:27:59,194 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-09 08:27:59,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:27:59,196 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-09 08:27:59,205 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-09 08:27:59,206 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:27:59,207 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:27:59,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2021-11-09 08:27:59,267 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 08:27:59,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:27:59,268 INFO L85 PathProgramCache]: Analyzing trace with hash -610298626, now seen corresponding path program 1 times [2021-11-09 08:27:59,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:27:59,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835529633] [2021-11-09 08:27:59,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:27:59,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:27:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:27:59,300 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:27:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:27:59,364 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:27:59,364 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 08:27:59,364 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-09 08:27:59,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 08:27:59,377 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-09 08:27:59,378 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2021-11-09 08:27:59,378 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-09 08:27:59,378 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-09 08:27:59,388 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,389 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,389 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,389 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,390 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,390 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,390 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,390 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,391 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,391 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,391 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,391 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,391 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,391 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,392 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,392 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,392 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,392 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,392 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,393 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,393 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,393 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,393 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,393 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,394 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,394 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,394 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,395 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,395 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,395 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,395 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,395 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,395 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,396 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,396 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,396 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,397 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,398 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,398 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,398 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,399 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,399 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,400 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,400 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,400 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,400 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,400 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,400 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,401 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,401 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,402 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,403 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,403 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,404 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,404 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,404 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,404 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,404 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,405 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,412 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,412 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,412 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,413 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,413 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,413 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,413 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,416 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-09 08:27:59,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-09 08:27:59,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:27:59,484 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-09 08:27:59,487 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-09 08:27:59,488 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:27:59,488 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:27:59,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2021-11-09 08:27:59,554 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 08:27:59,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:27:59,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1789723945, now seen corresponding path program 1 times [2021-11-09 08:27:59,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:27:59,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104136930] [2021-11-09 08:27:59,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:27:59,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:27:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:27:59,572 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:27:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:27:59,607 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:27:59,607 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 08:27:59,607 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-09 08:27:59,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 08:27:59,609 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-09 08:27:59,609 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2021-11-09 08:27:59,609 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-09 08:27:59,609 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-11-09 08:27:59,626 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,626 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,627 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,627 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,627 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,627 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,630 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,631 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,631 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,631 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,632 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,632 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,632 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,632 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,633 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,637 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,638 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,638 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,638 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,638 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,639 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,639 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,639 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,639 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,639 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,640 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,640 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,640 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,642 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,642 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,642 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,642 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,642 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,643 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,643 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,643 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,643 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,643 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,644 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,644 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,645 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,645 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,645 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,645 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,646 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,646 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,646 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,646 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,646 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,647 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,648 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,656 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,656 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,656 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,657 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,657 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,657 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,657 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,657 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,657 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,658 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,658 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,658 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,658 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,658 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,659 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,659 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,659 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,659 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,659 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,660 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,660 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,660 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,660 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,660 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,661 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,661 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,661 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,662 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,662 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,662 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,662 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,662 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,663 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,663 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,665 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,666 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,666 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,667 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,667 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,667 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,667 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,669 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,670 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,670 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,670 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,671 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,671 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,671 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:27:59,673 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-09 08:27:59,674 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-09 08:27:59,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:27:59,676 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-09 08:27:59,684 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2021-11-09 08:27:59,684 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:27:59,685 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:27:59,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2021-11-09 08:27:59,912 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:27:59,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:27:59,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1545621836, now seen corresponding path program 1 times [2021-11-09 08:27:59,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:27:59,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745719785] [2021-11-09 08:27:59,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:27:59,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:27:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:00,071 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-09 08:28:00,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:00,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745719785] [2021-11-09 08:28:00,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745719785] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:28:00,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392380953] [2021-11-09 08:28:00,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:00,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:28:00,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:28:00,074 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:28:00,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-09 08:28:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:00,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-09 08:28:00,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:28:00,610 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-09 08:28:00,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392380953] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:28:00,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:28:00,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 10 [2021-11-09 08:28:00,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321749604] [2021-11-09 08:28:00,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:28:00,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:00,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:28:00,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:28:00,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:00,618 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:00,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:00,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:01,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:01,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-09 08:28:01,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:28:01,755 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:01,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:01,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1649553364, now seen corresponding path program 1 times [2021-11-09 08:28:01,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:01,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541404470] [2021-11-09 08:28:01,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:01,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:01,912 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-09 08:28:01,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:01,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541404470] [2021-11-09 08:28:01,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541404470] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:28:01,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:28:01,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 08:28:01,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780060403] [2021-11-09 08:28:01,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:28:01,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:01,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:28:01,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:28:01,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:01,916 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:01,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:01,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:01,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:01,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:01,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:01,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 08:28:01,962 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:01,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:01,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1170535852, now seen corresponding path program 1 times [2021-11-09 08:28:01,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:01,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639178908] [2021-11-09 08:28:01,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:01,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:02,143 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-09 08:28:02,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:02,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639178908] [2021-11-09 08:28:02,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639178908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:28:02,143 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:28:02,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:28:02,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643312503] [2021-11-09 08:28:02,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:28:02,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:02,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:28:02,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:28:02,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:02,146 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:02,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:02,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:02,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:02,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:02,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:02,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:02,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:28:02,606 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:28:02,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-09 08:28:02,609 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-09 08:28:02,609 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread3of3ForFork0 was SAFE (1/4) [2021-11-09 08:28:02,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-09 08:28:02,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:28:02,615 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-09 08:28:02,622 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-09 08:28:02,622 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:28:02,622 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:28:02,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2021-11-09 08:28:02,678 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 08:28:02,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:02,679 INFO L85 PathProgramCache]: Analyzing trace with hash -2005554883, now seen corresponding path program 1 times [2021-11-09 08:28:02,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:02,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757646131] [2021-11-09 08:28:02,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:02,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:28:02,691 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:28:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:28:02,716 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:28:02,721 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 08:28:02,722 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-09 08:28:02,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-09 08:28:02,723 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-09 08:28:02,724 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/4) [2021-11-09 08:28:02,724 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-09 08:28:02,724 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-11-09 08:28:02,734 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,734 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,734 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,734 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,735 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,735 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,735 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,735 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,735 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,735 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,736 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,736 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,736 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,736 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,736 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,736 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,737 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,737 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,738 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,738 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,738 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,738 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,739 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,739 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,739 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,739 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,740 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,740 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,740 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,740 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,740 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,740 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,740 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,743 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,743 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,743 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,743 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,744 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,744 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,744 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,745 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,745 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,745 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,745 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,745 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,746 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,746 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,746 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,746 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,746 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,746 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,747 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,748 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,748 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,749 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,749 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,749 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,749 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,749 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,749 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,750 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,750 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,750 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,750 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,750 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,750 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,751 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,751 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,751 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,751 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,751 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,752 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,752 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,752 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,752 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,752 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,752 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,753 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,753 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,753 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,754 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,754 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,754 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,754 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,754 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,754 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,755 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,759 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,760 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,760 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,760 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,760 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,761 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,761 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,761 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,761 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,761 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,762 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,762 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,762 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,762 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,762 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,762 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,763 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,763 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,763 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,764 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,764 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,764 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,764 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,764 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,766 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,766 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,766 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,766 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,766 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,767 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,767 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,768 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,768 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,768 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,769 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,769 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,769 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,769 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,771 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,771 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,772 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,773 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,773 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,773 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,773 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:02,774 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-09 08:28:02,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-09 08:28:02,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:28:02,780 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-09 08:28:02,784 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of4ForFork0 ======== [2021-11-09 08:28:02,785 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:28:02,785 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:28:02,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2021-11-09 08:28:02,929 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:02,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:02,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1592036343, now seen corresponding path program 1 times [2021-11-09 08:28:02,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:02,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611056567] [2021-11-09 08:28:02,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:02,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:03,017 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-09 08:28:03,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:03,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611056567] [2021-11-09 08:28:03,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611056567] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:28:03,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726690309] [2021-11-09 08:28:03,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:03,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:28:03,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:28:03,028 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:28:03,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-09 08:28:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:03,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-09 08:28:03,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:28:03,498 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-09 08:28:03,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726690309] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:28:03,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:28:03,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 10 [2021-11-09 08:28:03,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212229986] [2021-11-09 08:28:03,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:28:03,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:03,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:28:03,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:28:03,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:03,504 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:03,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:03,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:06,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:06,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-09 08:28:06,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-09 08:28:06,843 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:06,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:06,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1221093207, now seen corresponding path program 1 times [2021-11-09 08:28:06,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:06,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312636943] [2021-11-09 08:28:06,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:06,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:06,952 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-09 08:28:06,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:06,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312636943] [2021-11-09 08:28:06,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312636943] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:28:06,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:28:06,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 08:28:06,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021713351] [2021-11-09 08:28:06,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:28:06,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:06,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:28:06,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:28:06,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:06,955 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:06,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:06,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:06,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:06,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:06,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:06,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-09 08:28:06,993 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:06,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:06,994 INFO L85 PathProgramCache]: Analyzing trace with hash -784184922, now seen corresponding path program 1 times [2021-11-09 08:28:06,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:06,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813289038] [2021-11-09 08:28:06,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:06,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:07,072 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-09 08:28:07,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:07,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813289038] [2021-11-09 08:28:07,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813289038] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:28:07,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:28:07,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:28:07,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377953977] [2021-11-09 08:28:07,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:28:07,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:07,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:28:07,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:28:07,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:07,075 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:07,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:07,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:07,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:07,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:10,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:10,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:10,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:28:10,787 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:28:10,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-09 08:28:10,789 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-09 08:28:10,789 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread3of4ForFork0 was SAFE (1/5) [2021-11-09 08:28:10,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-09 08:28:10,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:28:10,799 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-09 08:28:10,808 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread4of4ForFork0 ======== [2021-11-09 08:28:10,808 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:28:10,808 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:28:10,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2021-11-09 08:28:10,966 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:10,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:10,966 INFO L85 PathProgramCache]: Analyzing trace with hash 873095841, now seen corresponding path program 1 times [2021-11-09 08:28:10,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:10,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592842066] [2021-11-09 08:28:10,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:10,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:11,090 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-09 08:28:11,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:11,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592842066] [2021-11-09 08:28:11,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592842066] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:28:11,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817775770] [2021-11-09 08:28:11,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:11,091 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:28:11,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:28:11,093 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:28:11,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-09 08:28:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:11,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-09 08:28:11,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:28:11,750 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-09 08:28:11,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817775770] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:28:11,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:28:11,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 10 [2021-11-09 08:28:11,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016465258] [2021-11-09 08:28:11,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:28:11,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:11,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:28:11,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:28:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:11,753 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:11,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:11,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:15,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:15,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-09 08:28:15,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-09 08:28:15,710 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:15,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:15,710 INFO L85 PathProgramCache]: Analyzing trace with hash 900635846, now seen corresponding path program 1 times [2021-11-09 08:28:15,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:15,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643742100] [2021-11-09 08:28:15,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:15,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:15,818 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-09 08:28:15,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:15,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643742100] [2021-11-09 08:28:15,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643742100] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:28:15,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:28:15,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 08:28:15,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767354693] [2021-11-09 08:28:15,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:28:15,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:15,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:28:15,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:28:15,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:15,820 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:15,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:15,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:15,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:15,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:15,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:15,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-09 08:28:15,860 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:15,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:15,860 INFO L85 PathProgramCache]: Analyzing trace with hash 182886437, now seen corresponding path program 1 times [2021-11-09 08:28:15,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:15,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694209120] [2021-11-09 08:28:15,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:15,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:15,932 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-09 08:28:15,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:15,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694209120] [2021-11-09 08:28:15,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694209120] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:28:15,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:28:15,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:28:15,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891674122] [2021-11-09 08:28:15,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:28:15,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:15,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:28:15,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:28:15,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:15,935 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:15,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:15,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:15,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:15,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:18,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:18,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:18,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:28:18,315 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:28:18,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-09 08:28:18,316 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-09 08:28:18,316 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread4of4ForFork0 was SAFE (2/5) [2021-11-09 08:28:18,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-09 08:28:18,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:28:18,321 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-09 08:28:18,340 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of4ForFork0 ======== [2021-11-09 08:28:18,341 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:28:18,341 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:28:18,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2021-11-09 08:28:18,412 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:18,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:18,413 INFO L85 PathProgramCache]: Analyzing trace with hash 427339574, now seen corresponding path program 1 times [2021-11-09 08:28:18,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:18,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382091617] [2021-11-09 08:28:18,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:18,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:18,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:28:18,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:18,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382091617] [2021-11-09 08:28:18,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382091617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:28:18,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:28:18,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 08:28:18,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434145319] [2021-11-09 08:28:18,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:28:18,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:18,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:28:18,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:28:18,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:18,509 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:18,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:18,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:18,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:18,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-09 08:28:18,533 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:18,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:18,534 INFO L85 PathProgramCache]: Analyzing trace with hash 591293955, now seen corresponding path program 1 times [2021-11-09 08:28:18,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:18,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725404043] [2021-11-09 08:28:18,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:18,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:18,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:28:18,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:18,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725404043] [2021-11-09 08:28:18,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725404043] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:28:18,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:28:18,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:28:18,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301503519] [2021-11-09 08:28:18,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:28:18,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:18,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:28:18,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:28:18,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:18,618 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:18,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:18,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:18,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:18,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:18,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:28:18,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-09 08:28:18,722 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:18,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:18,723 INFO L85 PathProgramCache]: Analyzing trace with hash 878908299, now seen corresponding path program 1 times [2021-11-09 08:28:18,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:18,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772853200] [2021-11-09 08:28:18,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:18,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:18,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:18,797 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-09 08:28:18,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:18,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772853200] [2021-11-09 08:28:18,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772853200] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:28:18,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120457382] [2021-11-09 08:28:18,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:18,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:28:18,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:28:18,807 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:28:18,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-09 08:28:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:18,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 08:28:18,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:28:19,408 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-09 08:28:19,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120457382] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:28:19,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:28:19,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-11-09 08:28:19,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353548498] [2021-11-09 08:28:19,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:28:19,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:19,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:28:19,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:28:19,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:19,411 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:19,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:19,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:19,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:28:19,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:23,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:23,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:28:23,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:23,641 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:28:23,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-09 08:28:23,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-09 08:28:23,843 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-09 08:28:23,843 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of4ForFork0 was SAFE (3/5) [2021-11-09 08:28:23,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-09 08:28:23,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:28:23,845 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-09 08:28:23,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process [2021-11-09 08:28:23,852 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread2of4ForFork0 ======== [2021-11-09 08:28:23,853 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:28:23,853 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:28:23,974 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:23,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:23,974 INFO L85 PathProgramCache]: Analyzing trace with hash 265611648, now seen corresponding path program 1 times [2021-11-09 08:28:23,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:23,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340451990] [2021-11-09 08:28:23,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:23,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:24,028 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-09 08:28:24,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:24,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340451990] [2021-11-09 08:28:24,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340451990] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:28:24,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704678116] [2021-11-09 08:28:24,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:24,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:28:24,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:28:24,036 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:28:24,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-09 08:28:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:24,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-09 08:28:24,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:28:24,488 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-09 08:28:24,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704678116] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:28:24,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:28:24,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 10 [2021-11-09 08:28:24,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636095597] [2021-11-09 08:28:24,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:28:24,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:24,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:28:24,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:28:24,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:24,491 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:24,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:24,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:25,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:25,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-09 08:28:25,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-09 08:28:25,780 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:25,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:25,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1888441787, now seen corresponding path program 1 times [2021-11-09 08:28:25,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:25,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923219564] [2021-11-09 08:28:25,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:25,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:25,874 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-09 08:28:25,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:25,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923219564] [2021-11-09 08:28:25,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923219564] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:28:25,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:28:25,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 08:28:25,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299521559] [2021-11-09 08:28:25,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:28:25,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:25,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:28:25,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:28:25,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:25,877 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:25,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:25,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:25,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:25,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:25,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:25,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-09 08:28:25,909 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:25,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:25,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1208457954, now seen corresponding path program 1 times [2021-11-09 08:28:25,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:25,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482416957] [2021-11-09 08:28:25,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:25,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:25,976 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-09 08:28:25,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:25,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482416957] [2021-11-09 08:28:25,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482416957] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:28:25,977 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:28:25,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:28:25,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594169945] [2021-11-09 08:28:25,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:28:25,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:25,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:28:25,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:28:25,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:25,979 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:25,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:25,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:25,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:25,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:28,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:28,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:28,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:28:28,703 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:28:28,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-09 08:28:28,704 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-09 08:28:28,704 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread2of4ForFork0 was SAFE (4/5) [2021-11-09 08:28:28,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-09 08:28:28,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:28:28,710 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-09 08:28:28,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process [2021-11-09 08:28:28,712 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-09 08:28:28,712 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:28:28,712 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:28:28,750 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 08:28:28,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:28,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1693231507, now seen corresponding path program 1 times [2021-11-09 08:28:28,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:28,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637125171] [2021-11-09 08:28:28,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:28,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:28:28,764 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:28:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:28:28,780 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:28:28,781 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 08:28:28,781 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-09 08:28:28,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-09 08:28:28,782 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-09 08:28:28,783 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (5/5) [2021-11-09 08:28:28,783 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-09 08:28:28,783 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-11-09 08:28:28,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,794 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,794 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,795 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,795 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,795 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,795 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,795 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,795 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,796 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,796 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,796 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,796 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,796 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,797 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,797 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,797 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,797 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,797 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,797 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,798 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,798 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,798 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,798 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,798 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,799 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,799 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,799 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,799 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,799 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,799 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,800 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,800 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,800 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,800 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,800 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,801 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,801 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,801 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,801 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,801 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,801 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,802 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,802 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,802 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,802 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,802 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,803 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,803 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,803 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,803 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,803 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,804 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,804 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,804 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,804 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,804 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,804 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,805 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,805 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,805 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,805 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,805 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,805 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,806 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,806 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,806 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,806 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,806 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,807 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,807 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,807 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,807 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,807 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,807 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,808 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,808 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,808 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,808 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,809 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,809 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,809 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,809 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,809 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,809 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,810 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,810 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,810 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,810 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,810 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,811 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,811 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,811 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,811 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,811 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,811 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,812 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,812 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,812 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,812 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,812 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,812 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,813 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,813 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,813 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,813 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,814 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,814 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,814 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,814 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,814 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,814 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,815 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,815 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,815 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,815 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,815 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,816 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,816 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,816 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,816 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,816 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,816 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,816 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,817 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,817 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,817 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,817 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,818 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,818 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,818 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,818 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,818 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,819 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,819 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,820 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,820 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,821 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,821 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,821 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,821 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,821 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,823 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,823 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,823 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,823 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,823 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,824 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,824 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,826 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,826 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,826 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,826 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,826 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,828 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,828 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,828 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,828 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,828 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,829 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,829 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:28:28,830 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-09 08:28:28,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-09 08:28:28,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:28:28,840 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-09 08:28:28,842 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread2of5ForFork0 ======== [2021-11-09 08:28:28,842 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:28:28,843 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:28:28,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (17)] Waiting until timeout for monitored process [2021-11-09 08:28:28,973 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:28,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:28,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1971410880, now seen corresponding path program 1 times [2021-11-09 08:28:28,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:28,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973347836] [2021-11-09 08:28:28,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:28,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:29,029 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-09 08:28:29,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:29,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973347836] [2021-11-09 08:28:29,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973347836] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:28:29,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253085002] [2021-11-09 08:28:29,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:29,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:28:29,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 [2021-11-09 08:28:29,033 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:28:29,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-09 08:28:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:29,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-09 08:28:29,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:28:29,511 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-09 08:28:29,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253085002] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:28:29,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:28:29,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 10 [2021-11-09 08:28:29,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063597562] [2021-11-09 08:28:29,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:28:29,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:29,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:28:29,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:28:29,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:29,516 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:29,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:29,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:36,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:36,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-09 08:28:36,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b5ec18-82f6-45fa-bdd9-8b8ffd5faa69/bin/ugemcutter-sTCyEAgtpa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-09 08:28:36,229 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:36,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:36,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1811627195, now seen corresponding path program 1 times [2021-11-09 08:28:36,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:36,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037102993] [2021-11-09 08:28:36,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:36,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:36,319 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-09 08:28:36,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:36,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037102993] [2021-11-09 08:28:36,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037102993] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:28:36,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:28:36,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 08:28:36,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762860870] [2021-11-09 08:28:36,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:28:36,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:36,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:28:36,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:28:36,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:36,322 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:36,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:36,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:36,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:36,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:36,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:36,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-09 08:28:36,358 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:28:36,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:28:36,359 INFO L85 PathProgramCache]: Analyzing trace with hash 374457052, now seen corresponding path program 1 times [2021-11-09 08:28:36,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:28:36,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999051076] [2021-11-09 08:28:36,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:28:36,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:28:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:28:36,431 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-09 08:28:36,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:28:36,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999051076] [2021-11-09 08:28:36,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999051076] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:28:36,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:28:36,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:28:36,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108607946] [2021-11-09 08:28:36,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:28:36,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:28:36,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:28:36,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:28:36,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:28:36,433 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-09 08:28:36,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:28:36,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:28:36,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:28:36,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.