./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d --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 422a1b4addf42b15afc18c6b3ff87ab94cf45a5af46627fa0165a3dbe9c138e8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:48:24,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:48:24,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:48:24,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:48:24,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:48:24,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:48:24,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:48:24,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:48:24,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:48:24,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:48:24,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:48:24,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:48:24,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:48:24,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:48:24,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:48:24,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:48:24,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:48:24,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:48:24,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:48:24,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:48:24,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:48:24,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:48:24,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:48:24,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:48:24,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:48:24,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:48:24,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:48:24,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:48:24,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:48:24,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:48:24,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:48:24,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:48:24,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:48:24,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:48:24,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:48:24,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:48:24,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:48:24,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:48:24,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:48:24,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:48:24,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:48:24,452 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-20 07:48:24,477 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:48:24,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:48:24,478 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:48:24,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:48:24,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:48:24,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:48:24,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:48:24,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:48:24,481 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:48:24,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:48:24,481 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:48:24,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:48:24,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:48:24,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:48:24,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:48:24,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:48:24,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:48:24,483 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:48:24,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:48:24,484 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:48:24,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:48:24,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:48:24,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:48:24,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-20 07:48:24,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:48:24,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:48:24,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:48:24,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:48:24,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:48:24,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:48:24,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:48:24,487 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:48:24,487 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-20 07:48:24,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:48:24,487 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-20 07:48:24,488 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-20 07:48:24,488 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_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 422a1b4addf42b15afc18c6b3ff87ab94cf45a5af46627fa0165a3dbe9c138e8 [2021-11-20 07:48:24,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:48:24,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:48:24,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:48:24,760 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:48:24,761 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:48:24,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/../../sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c [2021-11-20 07:48:24,849 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/data/b8e47c83f/dc178e34c65a41f4a504c094460a6570/FLAG362dd3e73 [2021-11-20 07:48:25,437 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:48:25,438 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c [2021-11-20 07:48:25,456 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/data/b8e47c83f/dc178e34c65a41f4a504c094460a6570/FLAG362dd3e73 [2021-11-20 07:48:25,766 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/data/b8e47c83f/dc178e34c65a41f4a504c094460a6570 [2021-11-20 07:48:25,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:48:25,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:48:25,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:48:25,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:48:25,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:48:25,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:48:25" (1/1) ... [2021-11-20 07:48:25,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa938db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:25, skipping insertion in model container [2021-11-20 07:48:25,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:48:25" (1/1) ... [2021-11-20 07:48:25,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:48:25,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:48:26,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c[4218,4231] [2021-11-20 07:48:26,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:48:26,045 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:48:26,078 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c[4218,4231] [2021-11-20 07:48:26,084 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:48:26,098 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:48:26,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:26 WrapperNode [2021-11-20 07:48:26,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:48:26,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:48:26,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:48:26,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:48:26,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:26" (1/1) ... [2021-11-20 07:48:26,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:26" (1/1) ... [2021-11-20 07:48:26,175 INFO L137 Inliner]: procedures = 27, calls = 80, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 307 [2021-11-20 07:48:26,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:48:26,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:48:26,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:48:26,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:48:26,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:26" (1/1) ... [2021-11-20 07:48:26,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:26" (1/1) ... [2021-11-20 07:48:26,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:26" (1/1) ... [2021-11-20 07:48:26,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:26" (1/1) ... [2021-11-20 07:48:26,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:26" (1/1) ... [2021-11-20 07:48:26,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:26" (1/1) ... [2021-11-20 07:48:26,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:26" (1/1) ... [2021-11-20 07:48:26,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:48:26,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:48:26,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:48:26,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:48:26,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:26" (1/1) ... [2021-11-20 07:48:26,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:48:26,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:48:26,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:48:26,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:48:26,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:48:26,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:48:26,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:48:26,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:48:26,334 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-20 07:48:26,334 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-20 07:48:26,335 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-20 07:48:26,335 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-20 07:48:26,335 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-20 07:48:26,335 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-20 07:48:26,335 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-20 07:48:26,335 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-20 07:48:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:48:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-20 07:48:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-20 07:48:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:48:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:48:26,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:48:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:48:26,338 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 07:48:26,443 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:48:26,445 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:48:27,005 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:48:27,197 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:48:27,197 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-20 07:48:27,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:48:27 BoogieIcfgContainer [2021-11-20 07:48:27,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:48:27,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:48:27,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:48:27,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:48:27,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:48:25" (1/3) ... [2021-11-20 07:48:27,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f264c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:48:27, skipping insertion in model container [2021-11-20 07:48:27,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:26" (2/3) ... [2021-11-20 07:48:27,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f264c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:48:27, skipping insertion in model container [2021-11-20 07:48:27,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:48:27" (3/3) ... [2021-11-20 07:48:27,217 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult.wvr.c [2021-11-20 07:48:27,222 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 07:48:27,222 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:48:27,222 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:48:27,222 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 07:48:27,269 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,270 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,270 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,270 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,270 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,281 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,282 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,282 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,282 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,283 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,283 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,283 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,283 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,284 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,284 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,285 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,285 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,285 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,286 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,287 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,287 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,287 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,287 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,288 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,288 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,288 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,288 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,289 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,289 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,289 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,289 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,290 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,290 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,290 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,290 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,290 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,291 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,291 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,292 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,293 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,296 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,296 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,298 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,299 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,299 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,300 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,301 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,301 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,301 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,301 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,301 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,302 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,302 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,302 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,302 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,302 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,302 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,303 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,303 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,303 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,303 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,303 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,304 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,304 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,304 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,304 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,304 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,304 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,304 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,304 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,304 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,304 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,305 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,305 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,307 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,308 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,308 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,308 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,308 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,308 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,308 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,309 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,309 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,309 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,309 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,310 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,310 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,311 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,312 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,312 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,312 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,312 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,312 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,313 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,313 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,313 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,313 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,314 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,314 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,314 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,314 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,314 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,318 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,323 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,323 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,323 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,323 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,324 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,324 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,325 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:48:27,332 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-20 07:48:27,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-20 07:48:27,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:48:27,420 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-20 07:48:27,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-20 07:48:27,470 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-20 07:48:27,477 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 [2021-11-20 07:48:27,478 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-20 07:48:27,815 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-20 07:48:27,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:48:27,821 INFO L85 PathProgramCache]: Analyzing trace with hash 941410010, now seen corresponding path program 1 times [2021-11-20 07:48:27,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:48:27,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355528411] [2021-11-20 07:48:27,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:27,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:48:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:28,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:48:28,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:48:28,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355528411] [2021-11-20 07:48:28,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355528411] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:48:28,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:48:28,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:48:28,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156225596] [2021-11-20 07:48:28,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:48:28,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 07:48:28,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:48:28,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 07:48:28,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:48:28,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:28,208 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:48:28,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 87.0) internal successors, (174), 2 states have internal predecessors, (174), 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) [2021-11-20 07:48:28,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:28,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:28,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:48:28,288 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-20 07:48:28,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:48:28,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1047950273, now seen corresponding path program 1 times [2021-11-20 07:48:28,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:48:28,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559366201] [2021-11-20 07:48:28,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:28,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:48:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:28,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:48:28,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:48:28,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559366201] [2021-11-20 07:48:28,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559366201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:48:28,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:48:28,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:48:28,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281497278] [2021-11-20 07:48:28,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:48:28,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:48:28,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:48:28,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:48:28,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:48:28,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:28,690 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:48:28,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:48:28,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:28,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:28,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:28,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:28,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:48:28,932 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-20 07:48:28,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:48:28,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1991592974, now seen corresponding path program 1 times [2021-11-20 07:48:28,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:48:28,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096712334] [2021-11-20 07:48:28,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:28,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:48:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:29,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:48:29,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:48:29,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096712334] [2021-11-20 07:48:29,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096712334] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:48:29,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:48:29,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:48:29,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459383818] [2021-11-20 07:48:29,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:48:29,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:48:29,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:48:29,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:48:29,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:48:29,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:29,146 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:48:29,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2021-11-20 07:48:29,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:29,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:29,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:29,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:29,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:29,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:29,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:48:29,213 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-20 07:48:29,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:48:29,213 INFO L85 PathProgramCache]: Analyzing trace with hash -260000242, now seen corresponding path program 1 times [2021-11-20 07:48:29,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:48:29,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454540800] [2021-11-20 07:48:29,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:29,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:48:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:29,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:48:29,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:48:29,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454540800] [2021-11-20 07:48:29,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454540800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:48:29,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:48:29,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:48:29,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598052012] [2021-11-20 07:48:29,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:48:29,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:48:29,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:48:29,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:48:29,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:48:29,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:29,371 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:48:29,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2021-11-20 07:48:29,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:29,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:29,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:29,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:29,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:29,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:29,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:29,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:29,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:48:29,487 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-20 07:48:29,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:48:29,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1072497647, now seen corresponding path program 1 times [2021-11-20 07:48:29,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:48:29,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479066904] [2021-11-20 07:48:29,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:29,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:48:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:29,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:48:29,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:48:29,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479066904] [2021-11-20 07:48:29,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479066904] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:48:29,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:48:29,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:48:29,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344341301] [2021-11-20 07:48:29,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:48:29,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:48:29,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:48:29,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:48:29,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:48:29,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:29,672 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:48:29,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 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) [2021-11-20 07:48:29,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:29,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:29,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:29,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:29,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:29,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:29,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:29,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:29,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:29,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:29,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 07:48:29,864 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-20 07:48:29,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:48:29,865 INFO L85 PathProgramCache]: Analyzing trace with hash -960701231, now seen corresponding path program 1 times [2021-11-20 07:48:29,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:48:29,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832421470] [2021-11-20 07:48:29,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:29,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:48:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:29,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:48:29,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:48:29,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832421470] [2021-11-20 07:48:29,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832421470] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:48:29,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:48:29,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:48:29,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514080491] [2021-11-20 07:48:29,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:48:29,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:48:29,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:48:29,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:48:29,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:48:29,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:29,975 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:48:29,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 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) [2021-11-20 07:48:29,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:29,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:29,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:29,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:29,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:29,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:30,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 07:48:30,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 07:48:30,383 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-20 07:48:30,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:48:30,384 INFO L85 PathProgramCache]: Analyzing trace with hash 591708373, now seen corresponding path program 1 times [2021-11-20 07:48:30,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:48:30,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941041982] [2021-11-20 07:48:30,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:30,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:48:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:30,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 07:48:30,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:48:30,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941041982] [2021-11-20 07:48:30,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941041982] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:48:30,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:48:30,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:48:30,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853485174] [2021-11-20 07:48:30,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:48:30,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 07:48:30,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:48:30,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 07:48:30,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:48:30,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:30,861 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:48:30,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 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) [2021-11-20 07:48:30,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:30,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:30,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:30,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:30,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:30,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-20 07:48:30,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:31,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:31,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:31,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:31,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:31,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:31,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:48:31,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 07:48:31,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 07:48:31,384 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-20 07:48:31,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:48:31,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1976203113, now seen corresponding path program 1 times [2021-11-20 07:48:31,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:48:31,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790662915] [2021-11-20 07:48:31,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:31,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:48:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:31,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 07:48:31,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:48:31,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790662915] [2021-11-20 07:48:31,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790662915] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:48:31,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974121681] [2021-11-20 07:48:31,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:31,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:48:31,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:48:31,718 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:48:31,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 07:48:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:31,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 07:48:31,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:48:33,068 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 07:48:33,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:48:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:48:33,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974121681] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 07:48:33,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 07:48:33,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 7] total 18 [2021-11-20 07:48:33,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387411269] [2021-11-20 07:48:33,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:48:33,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:48:33,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:48:33,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:48:33,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2021-11-20 07:48:33,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:33,708 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:48:33,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 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) [2021-11-20 07:48:33,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:33,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:33,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:33,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:33,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:33,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:48:33,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-20 07:48:33,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:34,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:34,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:34,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:34,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:34,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:34,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:48:34,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 07:48:34,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:48:34,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:48:34,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:48:34,759 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-20 07:48:34,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:48:34,759 INFO L85 PathProgramCache]: Analyzing trace with hash 935993984, now seen corresponding path program 1 times [2021-11-20 07:48:34,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:48:34,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247452941] [2021-11-20 07:48:34,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:34,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:48:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:34,957 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 07:48:34,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:48:34,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247452941] [2021-11-20 07:48:34,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247452941] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:48:34,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458135764] [2021-11-20 07:48:34,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:34,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:48:34,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:48:34,960 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:48:34,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 07:48:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:35,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 07:48:35,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:48:35,585 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 07:48:35,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:48:35,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458135764] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:48:35,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:48:35,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2021-11-20 07:48:35,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947445631] [2021-11-20 07:48:35,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:48:35,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:48:35,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:48:35,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:48:35,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:48:35,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:35,588 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:48:35,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 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) [2021-11-20 07:48:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:48:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-20 07:48:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:48:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:35,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:35,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:35,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:35,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:35,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:35,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:48:35,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 07:48:35,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:48:35,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:48:35,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:48:35,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:48:35,891 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-20 07:48:35,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:48:35,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1315599232, now seen corresponding path program 1 times [2021-11-20 07:48:35,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:48:35,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652867085] [2021-11-20 07:48:35,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:35,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:48:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:36,037 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 07:48:36,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:48:36,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652867085] [2021-11-20 07:48:36,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652867085] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:48:36,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:48:36,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:48:36,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070064340] [2021-11-20 07:48:36,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:48:36,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:48:36,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:48:36,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:48:36,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:48:36,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:36,043 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:48:36,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 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) [2021-11-20 07:48:36,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:36,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:36,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:36,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:36,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:36,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:48:36,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-20 07:48:36,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:48:36,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:48:36,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:36,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:36,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:48:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:48:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 07:48:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:48:36,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:48:36,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:48:36,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 07:48:36,137 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-20 07:48:36,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:48:36,140 INFO L85 PathProgramCache]: Analyzing trace with hash -79243219, now seen corresponding path program 1 times [2021-11-20 07:48:36,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:48:36,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963583630] [2021-11-20 07:48:36,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:36,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:48:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:48:42,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:48:42,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963583630] [2021-11-20 07:48:42,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963583630] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:48:42,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048201225] [2021-11-20 07:48:42,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:42,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:48:42,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:48:42,631 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:48:42,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ed97d7-798a-461c-9306-40757a68435f/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 07:48:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:42,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 113 conjunts are in the unsatisfiable core [2021-11-20 07:48:42,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:48:42,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 07:48:43,024 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-20 07:48:43,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-20 07:48:45,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:48:45,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:48:45,212 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 07:48:45,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 25 [2021-11-20 07:48:46,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-20 07:48:48,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:48:48,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:48:48,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:48:48,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:48:48,205 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-20 07:48:48,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 17 [2021-11-20 07:48:48,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-20 07:48:50,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-20 07:48:50,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-20 07:48:51,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-20 07:48:51,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-20 07:48:53,412 INFO L354 Elim1Store]: treesize reduction 54, result has 5.3 percent of original size [2021-11-20 07:48:53,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 33 [2021-11-20 07:48:53,471 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:48:53,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:53:15,622 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:53:15,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2862988951517 treesize of output 2841514115145