./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 37f99419c791b8329e91533415d896c367c9197a331e0ac4d97f5b27dc6c2be9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:18:36,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:18:36,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:18:36,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:18:36,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:18:36,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:18:36,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:18:36,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:18:36,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:18:36,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:18:36,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:18:36,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:18:36,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:18:36,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:18:36,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:18:36,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:18:36,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:18:36,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:18:36,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:18:36,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:18:36,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:18:36,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:18:36,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:18:36,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:18:36,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:18:36,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:18:36,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:18:36,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:18:36,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:18:36,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:18:36,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:18:36,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:18:36,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:18:36,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:18:36,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:18:36,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:18:36,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:18:36,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:18:36,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:18:36,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:18:36,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:18:36,371 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-23 14:18:36,395 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:18:36,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:18:36,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:18:36,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:18:36,397 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 14:18:36,397 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 14:18:36,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:18:36,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:18:36,398 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:18:36,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:18:36,398 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 14:18:36,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:18:36,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 14:18:36,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:18:36,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:18:36,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:18:36,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:18:36,400 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 14:18:36,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:18:36,400 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:18:36,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:18:36,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:18:36,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:18:36,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-23 14:18:36,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:18:36,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:18:36,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:18:36,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:18:36,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:18:36,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:18:36,402 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2021-11-23 14:18:36,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:18:36,403 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:18:36,403 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-23 14:18:36,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:18:36,403 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-23 14:18:36,403 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-23 14:18:36,403 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_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37f99419c791b8329e91533415d896c367c9197a331e0ac4d97f5b27dc6c2be9 [2021-11-23 14:18:36,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:18:36,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:18:36,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:18:36,703 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:18:36,704 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:18:36,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/../../sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i [2021-11-23 14:18:36,768 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/data/548078a27/a2ed93d28f2d46d780df61d25b67ddc7/FLAG90abe207c [2021-11-23 14:18:37,352 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:18:37,356 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i [2021-11-23 14:18:37,381 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/data/548078a27/a2ed93d28f2d46d780df61d25b67ddc7/FLAG90abe207c [2021-11-23 14:18:37,639 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/data/548078a27/a2ed93d28f2d46d780df61d25b67ddc7 [2021-11-23 14:18:37,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:18:37,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:18:37,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:18:37,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:18:37,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:18:37,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:18:37" (1/1) ... [2021-11-23 14:18:37,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12173603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:37, skipping insertion in model container [2021-11-23 14:18:37,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:18:37" (1/1) ... [2021-11-23 14:18:37,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:18:37,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:18:38,119 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_51ee8d56-90f7-49a8-aafa-4cae549307d2/sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i[30003,30016] [2021-11-23 14:18:38,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:18:38,149 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:18:38,198 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_51ee8d56-90f7-49a8-aafa-4cae549307d2/sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i[30003,30016] [2021-11-23 14:18:38,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:18:38,266 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:18:38,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38 WrapperNode [2021-11-23 14:18:38,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:18:38,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:18:38,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:18:38,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:18:38,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,338 INFO L137 Inliner]: procedures = 172, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2021-11-23 14:18:38,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:18:38,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:18:38,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:18:38,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:18:38,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:18:38,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:18:38,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:18:38,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:18:38,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (1/1) ... [2021-11-23 14:18:38,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:18:38,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:18:38,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:18:38,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:18:38,484 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-11-23 14:18:38,484 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-11-23 14:18:38,484 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 14:18:38,484 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 14:18:38,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 14:18:38,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:18:38,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:18:38,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:18:38,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:18:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:18:38,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:18:38,487 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 14:18:38,652 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:18:38,654 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:18:38,900 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:18:38,908 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:18:38,908 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 14:18:38,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:38 BoogieIcfgContainer [2021-11-23 14:18:38,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:18:38,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:18:38,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:18:38,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:18:38,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:18:37" (1/3) ... [2021-11-23 14:18:38,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cab254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:18:38, skipping insertion in model container [2021-11-23 14:18:38,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:38" (2/3) ... [2021-11-23 14:18:38,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cab254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:18:38, skipping insertion in model container [2021-11-23 14:18:38,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:38" (3/3) ... [2021-11-23 14:18:38,918 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2021-11-23 14:18:38,923 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 14:18:38,923 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:18:38,923 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 14:18:38,924 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 14:18:38,950 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,950 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,950 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,951 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,951 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,951 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,951 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,952 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,952 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,952 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,952 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,953 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,953 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,953 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,953 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,954 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,954 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,954 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,955 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,955 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,955 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,955 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,956 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,956 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,956 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,956 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,957 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,957 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,957 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,957 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,958 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,958 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,958 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,958 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,958 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,959 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,959 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,959 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,959 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,960 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,960 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,960 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,963 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,963 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,964 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,964 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,964 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,970 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,970 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,970 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,970 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,971 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,971 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:38,972 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-23 14:18:39,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-23 14:18:39,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:18:39,022 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-23 14:18:39,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-23 14:18:39,064 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork1 ======== [2021-11-23 14:18:39,071 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 14:18:39,072 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 14:18:39,211 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:18:39,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:18:39,217 INFO L85 PathProgramCache]: Analyzing trace with hash -755070539, now seen corresponding path program 1 times [2021-11-23 14:18:39,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:18:39,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084840874] [2021-11-23 14:18:39,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:39,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:18:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:18:39,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:18:39,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:18:39,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084840874] [2021-11-23 14:18:39,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084840874] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:18:39,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:18:39,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:18:39,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354001226] [2021-11-23 14:18:39,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:18:39,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 14:18:39,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:18:39,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 14:18:39,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:18:39,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:39,533 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:18:39,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:18:39,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:39,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:39,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 14:18:39,560 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:18:39,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:18:39,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1926868283, now seen corresponding path program 1 times [2021-11-23 14:18:39,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:18:39,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025190127] [2021-11-23 14:18:39,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:39,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:18:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:18:39,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:18:39,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:18:39,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025190127] [2021-11-23 14:18:39,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025190127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:18:39,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:18:39,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 14:18:39,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343947992] [2021-11-23 14:18:39,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:18:39,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 14:18:39,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:18:39,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 14:18:39,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-23 14:18:39,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:39,857 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:18:39,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:18:39,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:39,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:40,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:40,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 14:18:40,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 14:18:40,070 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:18:40,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:18:40,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1015912410, now seen corresponding path program 1 times [2021-11-23 14:18:40,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:18:40,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945321716] [2021-11-23 14:18:40,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:40,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:18:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:18:40,119 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:18:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:18:40,202 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:18:40,203 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 14:18:40,204 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 14:18:40,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 14:18:40,222 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-23 14:18:40,224 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork1 was UNSAFE (1/2) [2021-11-23 14:18:40,228 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-23 14:18:40,228 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 14:18:40,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:18:40 BasicIcfg [2021-11-23 14:18:40,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 14:18:40,306 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 14:18:40,306 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 14:18:40,306 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 14:18:40,306 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:38" (3/4) ... [2021-11-23 14:18:40,308 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 14:18:40,370 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/witness.graphml [2021-11-23 14:18:40,370 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 14:18:40,371 INFO L158 Benchmark]: Toolchain (without parser) took 2724.61ms. Allocated memory is still 100.7MB. Free memory was 60.6MB in the beginning and 52.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2021-11-23 14:18:40,371 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 100.7MB. Free memory was 78.7MB in the beginning and 78.7MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:18:40,372 INFO L158 Benchmark]: CACSL2BoogieTranslator took 617.89ms. Allocated memory is still 100.7MB. Free memory was 60.4MB in the beginning and 67.9MB in the end (delta: -7.5MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2021-11-23 14:18:40,372 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.91ms. Allocated memory is still 100.7MB. Free memory was 67.9MB in the beginning and 66.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:18:40,373 INFO L158 Benchmark]: Boogie Preprocessor took 55.75ms. Allocated memory is still 100.7MB. Free memory was 66.0MB in the beginning and 64.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:18:40,374 INFO L158 Benchmark]: RCFGBuilder took 514.40ms. Allocated memory is still 100.7MB. Free memory was 64.6MB in the beginning and 75.6MB in the end (delta: -10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 14:18:40,374 INFO L158 Benchmark]: TraceAbstraction took 1393.59ms. Allocated memory is still 100.7MB. Free memory was 75.1MB in the beginning and 59.1MB in the end (delta: 16.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 14:18:40,375 INFO L158 Benchmark]: Witness Printer took 64.65ms. Allocated memory is still 100.7MB. Free memory was 59.1MB in the beginning and 52.2MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 14:18:40,377 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 100.7MB. Free memory was 78.7MB in the beginning and 78.7MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 617.89ms. Allocated memory is still 100.7MB. Free memory was 60.4MB in the beginning and 67.9MB in the end (delta: -7.5MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.91ms. Allocated memory is still 100.7MB. Free memory was 67.9MB in the beginning and 66.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.75ms. Allocated memory is still 100.7MB. Free memory was 66.0MB in the beginning and 64.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 514.40ms. Allocated memory is still 100.7MB. Free memory was 64.6MB in the beginning and 75.6MB in the end (delta: -10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1393.59ms. Allocated memory is still 100.7MB. Free memory was 75.1MB in the beginning and 59.1MB in the end (delta: 16.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 64.65ms. Allocated memory is still 100.7MB. Free memory was 59.1MB in the beginning and 52.2MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 787, positive: 776, positive conditional: 79, positive unconditional: 697, negative: 11, negative conditional: 8, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 781, positive: 776, positive conditional: 79, positive unconditional: 697, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 781, positive: 776, positive conditional: 79, positive unconditional: 697, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 783, positive: 776, positive conditional: 44, positive unconditional: 732, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 783, positive: 776, positive conditional: 38, positive unconditional: 738, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 783, positive: 776, positive conditional: 38, positive unconditional: 738, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 652, positive: 648, positive conditional: 1, positive unconditional: 647, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 652, positive: 648, positive conditional: 0, positive unconditional: 648, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 53, negative conditional: 2, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 783, positive: 128, positive conditional: 37, positive unconditional: 91, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 652, unknown conditional: 2, unknown unconditional: 650] , Statistics on independence cache: Total cache size (in pairs): 652, Positive cache size: 648, Positive conditional cache size: 1, Positive unconditional cache size: 647, Negative cache size: 4, Negative conditional cache size: 1, Negative unconditional cache size: 3, Eliminated conditions: 6, Maximal queried relation: 1, Independence queries for same thread: 6 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 59, Number of trivial persistent sets: 47, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 700, positive: 697, positive conditional: 0, positive unconditional: 697, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 787, positive: 776, positive conditional: 79, positive unconditional: 697, negative: 11, negative conditional: 8, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 781, positive: 776, positive conditional: 79, positive unconditional: 697, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 781, positive: 776, positive conditional: 79, positive unconditional: 697, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 783, positive: 776, positive conditional: 44, positive unconditional: 732, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 783, positive: 776, positive conditional: 38, positive unconditional: 738, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 783, positive: 776, positive conditional: 38, positive unconditional: 738, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 652, positive: 648, positive conditional: 1, positive unconditional: 647, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 652, positive: 648, positive conditional: 0, positive unconditional: 648, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 53, negative conditional: 2, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 783, positive: 128, positive conditional: 37, positive unconditional: 91, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 652, unknown conditional: 2, unknown unconditional: 650] , Statistics on independence cache: Total cache size (in pairs): 652, Positive cache size: 648, Positive conditional cache size: 1, Positive unconditional cache size: 647, Negative cache size: 4, Negative conditional cache size: 1, Negative unconditional cache size: 3, Eliminated conditions: 6, Maximal queried relation: 1, Independence queries for same thread: 6 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 690]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 volatile int x; VAL [x=0] [L698] 0 volatile int n; VAL [n=0, x=0] [L710] 0 pthread_t t1, t2; VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, n=0, t1={5:0}, t2={3:0}, x=0] [L711] 0 int i; VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, n=0, t1={5:0}, t2={3:0}, x=0] [L712] 0 x = 0 VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, n=0, t1={5:0}, t2={3:0}, x=0] [L713] 0 n = __VERIFIER_nondet_int() VAL [\old(argc)=49, __VERIFIER_nondet_int()=1, argc=49, argv={51:50}, argv={51:50}, n=1, t1={5:0}, t2={3:0}, x=0] [L714] CALL 0 assume_abort_if_not(n > 0) [L686] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, n=1, x=0] [L714] RET 0 assume_abort_if_not(n > 0) [L715] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, n=1, pthread_create(&t1, 0, thr1, 0)=-1, t1={5:0}, t2={3:0}, x=0] [L700] CALL 1 __VERIFIER_assert(x < n) [L716] 0 i = 0 VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, i=0, n=1, t1={5:0}, t2={3:0}, x=0] [L716] COND TRUE 0 i < n VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, i=0, n=1, t1={5:0}, t2={3:0}, x=0] [L717] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(argc)=49, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, i=0, n=1, pthread_create(&t2, 0, thr2, 0)=0, t1={5:0}, t2={3:0}, x=0] [L704] 2 int t; VAL [arg={0:0}, arg={0:0}, n=1, x=0] [L705] 2 t = x VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=0] [L706] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L689] COND TRUE 1 !(cond) VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, n=1, t=0, x=1] [L690] 1 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, n=1, t=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 99 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 202 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-23 14:18:40,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-11-23 14:18:40,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee8d56-90f7-49a8-aafa-4cae549307d2/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE