./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-array-sum-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ --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 3a95f2ef87fd1cf5c8213f05c50508f1a1765fc5482d62813e9c15181aaf2ab6 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 04:33:01,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 04:33:01,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 04:33:01,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 04:33:01,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 04:33:01,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 04:33:01,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 04:33:01,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 04:33:01,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 04:33:01,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 04:33:01,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 04:33:01,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 04:33:01,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 04:33:01,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 04:33:01,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 04:33:01,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 04:33:01,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 04:33:01,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 04:33:01,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 04:33:01,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 04:33:01,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 04:33:01,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 04:33:01,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 04:33:01,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 04:33:01,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 04:33:01,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 04:33:01,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 04:33:01,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 04:33:01,436 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 04:33:01,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 04:33:01,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 04:33:01,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 04:33:01,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 04:33:01,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 04:33:01,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 04:33:01,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 04:33:01,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 04:33:01,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 04:33:01,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 04:33:01,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 04:33:01,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 04:33:01,447 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-25 04:33:01,472 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 04:33:01,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 04:33:01,472 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 04:33:01,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 04:33:01,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 04:33:01,474 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 04:33:01,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 04:33:01,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 04:33:01,475 INFO L138 SettingsManager]: * Use SBE=true [2021-11-25 04:33:01,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 04:33:01,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 04:33:01,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 04:33:01,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 04:33:01,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 04:33:01,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 04:33:01,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 04:33:01,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 04:33:01,476 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 04:33:01,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 04:33:01,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 04:33:01,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 04:33:01,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 04:33:01,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-25 04:33:01,478 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-25 04:33:01,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 04:33:01,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 04:33:01,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 04:33:01,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 04:33:01,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 04:33:01,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-25 04:33:01,479 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2021-11-25 04:33:01,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 04:33:01,479 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-25 04:33:01,480 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-25 04:33:01,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 04:33:01,480 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-25 04:33:01,480 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-25 04:33:01,480 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_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a95f2ef87fd1cf5c8213f05c50508f1a1765fc5482d62813e9c15181aaf2ab6 [2021-11-25 04:33:01,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 04:33:01,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 04:33:01,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 04:33:01,765 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 04:33:01,766 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 04:33:01,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/../../sv-benchmarks/c/weaver/popl20-more-array-sum-alt.wvr.c [2021-11-25 04:33:01,864 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/data/f16d283b3/6ad9a396bf0a4c8daf0f8653293e3e40/FLAGed730e48e [2021-11-25 04:33:02,359 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 04:33:02,360 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/sv-benchmarks/c/weaver/popl20-more-array-sum-alt.wvr.c [2021-11-25 04:33:02,377 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/data/f16d283b3/6ad9a396bf0a4c8daf0f8653293e3e40/FLAGed730e48e [2021-11-25 04:33:02,725 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/data/f16d283b3/6ad9a396bf0a4c8daf0f8653293e3e40 [2021-11-25 04:33:02,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 04:33:02,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 04:33:02,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 04:33:02,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 04:33:02,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 04:33:02,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:33:02" (1/1) ... [2021-11-25 04:33:02,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fdcdcfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:02, skipping insertion in model container [2021-11-25 04:33:02,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:33:02" (1/1) ... [2021-11-25 04:33:02,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 04:33:02,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 04:33:02,985 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_e94ff801-0a70-42e0-bbca-f38976515bff/sv-benchmarks/c/weaver/popl20-more-array-sum-alt.wvr.c[2761,2774] [2021-11-25 04:33:02,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 04:33:03,004 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 04:33:03,027 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_e94ff801-0a70-42e0-bbca-f38976515bff/sv-benchmarks/c/weaver/popl20-more-array-sum-alt.wvr.c[2761,2774] [2021-11-25 04:33:03,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 04:33:03,063 INFO L208 MainTranslator]: Completed translation [2021-11-25 04:33:03,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:03 WrapperNode [2021-11-25 04:33:03,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 04:33:03,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 04:33:03,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 04:33:03,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 04:33:03,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:03" (1/1) ... [2021-11-25 04:33:03,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:03" (1/1) ... [2021-11-25 04:33:03,156 INFO L137 Inliner]: procedures = 25, calls = 51, calls flagged for inlining = 12, calls inlined = 16, statements flattened = 200 [2021-11-25 04:33:03,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 04:33:03,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 04:33:03,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 04:33:03,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 04:33:03,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:03" (1/1) ... [2021-11-25 04:33:03,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:03" (1/1) ... [2021-11-25 04:33:03,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:03" (1/1) ... [2021-11-25 04:33:03,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:03" (1/1) ... [2021-11-25 04:33:03,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:03" (1/1) ... [2021-11-25 04:33:03,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:03" (1/1) ... [2021-11-25 04:33:03,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:03" (1/1) ... [2021-11-25 04:33:03,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 04:33:03,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 04:33:03,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 04:33:03,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 04:33:03,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:03" (1/1) ... [2021-11-25 04:33:03,253 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 04:33:03,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:03,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 04:33:03,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 04:33:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 04:33:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 04:33:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 04:33:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 04:33:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-25 04:33:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-25 04:33:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-25 04:33:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-25 04:33:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-25 04:33:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-25 04:33:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 04:33:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-25 04:33:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-25 04:33:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 04:33:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 04:33:03,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 04:33:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 04:33:03,332 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-25 04:33:03,435 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 04:33:03,437 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 04:33:03,864 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 04:33:04,034 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 04:33:04,035 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-25 04:33:04,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:33:04 BoogieIcfgContainer [2021-11-25 04:33:04,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 04:33:04,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 04:33:04,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 04:33:04,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 04:33:04,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:33:02" (1/3) ... [2021-11-25 04:33:04,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f4d0fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:33:04, skipping insertion in model container [2021-11-25 04:33:04,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:03" (2/3) ... [2021-11-25 04:33:04,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f4d0fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:33:04, skipping insertion in model container [2021-11-25 04:33:04,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:33:04" (3/3) ... [2021-11-25 04:33:04,052 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum-alt.wvr.c [2021-11-25 04:33:04,058 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-25 04:33:04,059 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 04:33:04,059 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 04:33:04,059 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-25 04:33:04,116 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,117 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,118 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,118 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,119 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,119 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,119 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,119 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,120 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,120 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,120 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,121 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,121 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,122 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,122 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,122 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,123 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,124 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,125 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,126 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,126 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,127 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,128 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,128 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,128 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,128 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,129 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,129 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,129 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,130 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,130 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,130 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,131 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,131 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,132 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,133 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,137 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,138 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,138 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,138 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,139 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,139 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,139 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,151 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,152 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,152 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,153 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,153 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,154 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,154 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,154 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,154 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,155 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~tmp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,157 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,157 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,157 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,157 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,158 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,159 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,159 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,159 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,159 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,160 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~tmp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,160 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,160 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,160 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,161 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,161 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,162 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,163 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,164 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,165 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~tmp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,165 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~tmp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,165 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,165 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,167 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,167 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,167 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,168 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,171 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,171 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,172 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,172 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,172 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,172 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,172 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,172 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,172 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,173 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,173 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,173 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,173 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,173 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,173 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,173 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,173 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,173 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,173 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,174 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,174 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~tmp~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,174 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,174 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,174 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,174 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,174 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,174 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,174 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,174 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,175 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,175 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,175 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~tmp~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,175 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,175 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,175 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,175 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,176 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~tmp~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,176 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~tmp~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,176 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,176 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,176 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,177 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,177 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,177 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,177 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,177 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,181 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,181 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,181 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,182 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,182 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,182 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,182 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,182 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,183 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,183 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,183 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,183 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,183 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,184 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,186 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,186 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,186 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,186 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,186 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,187 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,187 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,187 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,187 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~tmp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,187 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,189 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,189 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,189 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,189 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,189 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,190 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,190 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,190 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,190 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,190 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~tmp~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,191 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,191 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:04,194 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-25 04:33:04,244 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-25 04:33:04,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:04,247 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-25 04:33:04,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-25 04:33:04,287 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-25 04:33:04,295 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 [2021-11-25 04:33:04,296 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-25 04:33:04,615 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:33:04,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:04,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1517648486, now seen corresponding path program 1 times [2021-11-25 04:33:04,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:04,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009305857] [2021-11-25 04:33:04,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:04,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:04,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:04,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:04,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009305857] [2021-11-25 04:33:04,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009305857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:04,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:04,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 04:33:04,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505912286] [2021-11-25 04:33:04,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:04,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 04:33:04,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:04,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 04:33:04,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 04:33:04,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:04,878 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:04,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 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) [2021-11-25 04:33:04,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:04,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:04,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 04:33:04,962 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:33:04,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:04,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1392965384, now seen corresponding path program 1 times [2021-11-25 04:33:04,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:04,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592808649] [2021-11-25 04:33:04,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:04,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:05,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:05,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:05,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592808649] [2021-11-25 04:33:05,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592808649] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:05,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:05,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 04:33:05,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191281962] [2021-11-25 04:33:05,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:05,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 04:33:05,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:05,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 04:33:05,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 04:33:05,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:05,302 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:05,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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) [2021-11-25 04:33:05,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:05,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:05,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:05,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:05,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 04:33:05,493 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:33:05,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:05,494 INFO L85 PathProgramCache]: Analyzing trace with hash -805650084, now seen corresponding path program 1 times [2021-11-25 04:33:05,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:05,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903846325] [2021-11-25 04:33:05,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:05,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:05,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:05,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:05,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903846325] [2021-11-25 04:33:05,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903846325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:05,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:05,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-25 04:33:05,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492619828] [2021-11-25 04:33:05,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:05,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 04:33:05,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:05,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 04:33:05,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-25 04:33:05,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:05,880 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:05,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 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) [2021-11-25 04:33:05,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:05,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:05,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:06,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:06,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:06,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:06,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 04:33:06,247 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:33:06,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:06,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1054247122, now seen corresponding path program 1 times [2021-11-25 04:33:06,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:06,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127802164] [2021-11-25 04:33:06,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:06,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:06,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:06,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:06,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127802164] [2021-11-25 04:33:06,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127802164] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:06,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:06,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-25 04:33:06,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120311379] [2021-11-25 04:33:06,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:06,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 04:33:06,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:06,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 04:33:06,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-25 04:33:06,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:06,517 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:06,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 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) [2021-11-25 04:33:06,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:06,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:06,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:06,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:06,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:06,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:06,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:06,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:06,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 04:33:06,801 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:33:06,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:06,803 INFO L85 PathProgramCache]: Analyzing trace with hash -780663420, now seen corresponding path program 1 times [2021-11-25 04:33:06,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:06,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137471114] [2021-11-25 04:33:06,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:06,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:06,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:06,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:06,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137471114] [2021-11-25 04:33:06,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137471114] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:06,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:06,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 04:33:06,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981903219] [2021-11-25 04:33:06,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:06,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 04:33:06,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:06,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 04:33:06,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-25 04:33:06,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:06,986 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:06,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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) [2021-11-25 04:33:06,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:06,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:06,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:06,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:07,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:07,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:07,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:07,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:07,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:07,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:07,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 04:33:07,388 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:33:07,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:07,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1315046006, now seen corresponding path program 1 times [2021-11-25 04:33:07,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:07,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603519850] [2021-11-25 04:33:07,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:07,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:07,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 04:33:07,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:07,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603519850] [2021-11-25 04:33:07,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603519850] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:07,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326419271] [2021-11-25 04:33:07,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:07,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:07,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:07,509 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:07,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 04:33:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:07,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 04:33:07,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:08,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 04:33:08,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:08,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 04:33:08,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326419271] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:08,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 04:33:08,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2021-11-25 04:33:08,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416437442] [2021-11-25 04:33:08,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:08,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 04:33:08,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:08,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 04:33:08,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-11-25 04:33:08,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:08,528 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:08,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 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) [2021-11-25 04:33:08,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:08,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:08,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:08,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:08,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:08,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:08,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:08,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:08,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:08,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:08,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:08,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:08,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:08,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:08,874 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:33:08,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:08,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1290059342, now seen corresponding path program 1 times [2021-11-25 04:33:08,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:08,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083100097] [2021-11-25 04:33:08,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:08,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:09,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:09,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083100097] [2021-11-25 04:33:09,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083100097] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:09,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515815245] [2021-11-25 04:33:09,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:09,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:09,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:09,019 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:09,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 04:33:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:09,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 04:33:09,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:09,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:09,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:09,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:09,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515815245] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:09,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 04:33:09,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2021-11-25 04:33:09,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969884436] [2021-11-25 04:33:09,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:09,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 04:33:09,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:09,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 04:33:09,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-11-25 04:33:09,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:09,966 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:09,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 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) [2021-11-25 04:33:09,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:09,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:09,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:09,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:09,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:09,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:09,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:10,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:10,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:10,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:10,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:10,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:10,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:10,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:10,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:10,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-25 04:33:10,376 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:33:10,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:10,376 INFO L85 PathProgramCache]: Analyzing trace with hash -472796796, now seen corresponding path program 1 times [2021-11-25 04:33:10,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:10,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399857175] [2021-11-25 04:33:10,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:10,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:11,434 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:11,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:11,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399857175] [2021-11-25 04:33:11,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399857175] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:11,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480104172] [2021-11-25 04:33:11,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:11,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:11,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:11,437 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:11,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 04:33:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:11,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 79 conjunts are in the unsatisfiable core [2021-11-25 04:33:11,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:11,735 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 [2021-11-25 04:33:11,816 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 04:33:11,817 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 18 [2021-11-25 04:33:12,578 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 04:33:12,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-25 04:33:12,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 04:33:13,499 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 6 treesize of output 5 [2021-11-25 04:33:13,731 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 6 treesize of output 5 [2021-11-25 04:33:13,967 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 6 treesize of output 5 [2021-11-25 04:33:14,447 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:33:14,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2021-11-25 04:33:14,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:14,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:15,571 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_173 (Array Int Int))) (or (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_173) c_~A~0.base))) (= (+ c_~res1~0 (select .cse0 (+ (* |c_thread1Thread1of1ForFork0_~i~0#1| 4) c_~A~0.offset))) (+ c_~res2~0 (select .cse0 (+ c_~A~0.offset (* ~M~0 4)))))) (< |c_thread2Thread1of1ForFork1_~i~1#1| ~M~0) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-11-25 04:33:15,728 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_173 (Array Int Int))) (or (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_173) c_~A~0.base))) (= (+ c_~res1~0 (select .cse0 (+ (* |c_thread1Thread1of1ForFork0_~i~0#1| 4) c_~A~0.offset))) (+ c_~res2~0 (select .cse0 (+ c_~A~0.offset (* ~M~0 4)))))) (< 0 ~M~0) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-11-25 04:33:15,797 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_173 (Array Int Int)) (v_ArrVal_172 (Array Int Int))) (or (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_172) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_173) c_~A~0.base))) (= (+ c_~res1~0 (select .cse0 (+ (* |c_thread1Thread1of1ForFork0_~i~0#1| 4) c_~A~0.offset))) (+ c_~res2~0 (select .cse0 (+ c_~A~0.offset (* ~M~0 4)))))) (< 0 ~M~0) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-11-25 04:33:15,967 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_173 (Array Int Int)) (v_ArrVal_172 (Array Int Int))) (or (< 0 ~M~0) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_172) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_173) c_~A~0.base))) (= (+ c_~res1~0 (select .cse0 c_~A~0.offset)) (+ c_~res2~0 (select .cse0 (+ c_~A~0.offset (* ~M~0 4)))))) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-11-25 04:33:16,039 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_171 (Array Int Int)) (~M~0 Int) (v_ArrVal_173 (Array Int Int)) (v_ArrVal_172 (Array Int Int))) (or (let ((.cse0 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_171) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_172) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_173) c_~A~0.base))) (= (+ (select .cse0 (+ c_~A~0.offset (* ~M~0 4))) c_~res2~0) (+ c_~res1~0 (select .cse0 c_~A~0.offset)))) (< 0 ~M~0) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-11-25 04:33:16,279 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_171 (Array Int Int)) (~M~0 Int) (v_ArrVal_173 (Array Int Int)) (v_ArrVal_172 (Array Int Int))) (or (< 0 ~M~0) (let ((.cse0 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_171) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_172) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_173) |c_ULTIMATE.start_main_#t~ret12#1.base|))) (= (+ c_~res2~0 (select .cse0 (+ (* ~M~0 4) |c_ULTIMATE.start_main_#t~ret12#1.offset|))) (+ c_~res1~0 (select .cse0 |c_ULTIMATE.start_main_#t~ret12#1.offset|)))) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-11-25 04:33:16,326 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_171 (Array Int Int)) (~M~0 Int) (v_ArrVal_173 (Array Int Int)) (v_ArrVal_172 (Array Int Int))) (or (let ((.cse0 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_171) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_172) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_173) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|))) (= (+ (select .cse0 (+ (* ~M~0 4) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)) c_~res2~0) (+ c_~res1~0 (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)))) (< 0 ~M~0) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-11-25 04:33:16,351 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_171 (Array Int Int)) (~M~0 Int) (v_ArrVal_173 (Array Int Int)) (v_ArrVal_172 (Array Int Int))) (or (< 0 ~M~0) (<= (+ 2 ~M~0) c_~N~0) (let ((.cse0 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_171) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_172) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_173) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (= (+ c_~res2~0 (select .cse0 (+ (* ~M~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (+ (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) c_~res1~0))))) is different from false [2021-11-25 04:33:16,469 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:33:16,470 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 50 [2021-11-25 04:33:16,490 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:33:16,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1622 treesize of output 1538 [2021-11-25 04:33:16,520 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:33:16,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1526 treesize of output 1474 [2021-11-25 04:33:16,550 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:33:16,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1462 treesize of output 1346 [2021-11-25 04:33:16,585 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:33:16,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1334 treesize of output 1090 [2021-11-25 04:33:18,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-25 04:33:18,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-25 04:33:18,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480104172] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:33:18,940 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:33:18,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 33, 29] total 73 [2021-11-25 04:33:18,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28545311] [2021-11-25 04:33:18,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:33:18,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-11-25 04:33:18,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:18,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-11-25 04:33:18,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=542, Invalid=3642, Unknown=8, NotChecked=1064, Total=5256 [2021-11-25 04:33:18,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:18,946 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:18,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 4.232876712328767) internal successors, (309), 73 states have internal predecessors, (309), 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) [2021-11-25 04:33:18,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:18,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:18,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:18,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:18,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:18,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:18,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:18,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:24,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-25 04:33:24,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:24,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:24,292 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:33:24,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:24,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1986146072, now seen corresponding path program 2 times [2021-11-25 04:33:24,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:24,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962794603] [2021-11-25 04:33:24,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:24,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:24,697 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:24,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:24,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962794603] [2021-11-25 04:33:24,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962794603] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:24,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999647138] [2021-11-25 04:33:24,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 04:33:24,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:24,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:24,704 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:24,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 04:33:24,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 04:33:24,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:33:24,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-25 04:33:24,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:25,574 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 04:33:25,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:26,167 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 04:33:26,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999647138] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:33:26,167 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:33:26,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 34 [2021-11-25 04:33:26,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978709717] [2021-11-25 04:33:26,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:33:26,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-25 04:33:26,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:26,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-25 04:33:26,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=996, Unknown=0, NotChecked=0, Total=1122 [2021-11-25 04:33:26,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:26,170 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:26,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.617647058823529) internal successors, (259), 34 states have internal predecessors, (259), 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) [2021-11-25 04:33:26,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:26,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:26,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:26,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:26,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:26,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:26,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:26,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-11-25 04:33:26,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:29,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:29,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:29,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:29,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:29,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:29,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:29,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:29,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-25 04:33:29,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-25 04:33:29,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:29,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:29,474 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:33:29,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:29,475 INFO L85 PathProgramCache]: Analyzing trace with hash 599161002, now seen corresponding path program 3 times [2021-11-25 04:33:29,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:29,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981430976] [2021-11-25 04:33:29,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:29,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:29,644 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:29,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:29,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981430976] [2021-11-25 04:33:29,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981430976] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:29,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143325379] [2021-11-25 04:33:29,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 04:33:29,645 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:29,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:29,647 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:29,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 04:33:29,816 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 04:33:29,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:33:29,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 04:33:29,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:30,302 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:30,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:30,734 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:30,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143325379] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:33:30,735 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:33:30,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2021-11-25 04:33:30,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426115978] [2021-11-25 04:33:30,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:33:30,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-25 04:33:30,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:30,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-25 04:33:30,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2021-11-25 04:33:30,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:30,741 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:30,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.333333333333334) internal successors, (224), 24 states have internal predecessors, (224), 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) [2021-11-25 04:33:30,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:30,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:30,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:30,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:30,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:30,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:30,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:30,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-11-25 04:33:30,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-11-25 04:33:30,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-25 04:33:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-25 04:33:31,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:33:31,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-25 04:33:31,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:31,759 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:33:31,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:31,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1408295518, now seen corresponding path program 1 times [2021-11-25 04:33:31,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:31,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060858708] [2021-11-25 04:33:31,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:31,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:32,318 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 04:33:32,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:32,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060858708] [2021-11-25 04:33:32,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060858708] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:32,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482102075] [2021-11-25 04:33:32,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:32,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:32,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:32,324 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:32,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 04:33:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:32,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-25 04:33:32,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:33,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 04:33:33,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 04:33:33,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:33,446 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:33:33,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2021-11-25 04:33:33,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 04:33:33,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482102075] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:33:33,763 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:33:33,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 12, 11] total 28 [2021-11-25 04:33:33,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567368618] [2021-11-25 04:33:33,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:33:33,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-25 04:33:33,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:33,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-25 04:33:33,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=646, Unknown=0, NotChecked=0, Total=756 [2021-11-25 04:33:33,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:33,771 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:33,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.464285714285714) internal successors, (265), 28 states have internal predecessors, (265), 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) [2021-11-25 04:33:33,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:33,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:33,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:33,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:33,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:33,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:33,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:33,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-11-25 04:33:33,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-11-25 04:33:33,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:33:33,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:34,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:34,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:34,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:34,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:34,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:34,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:34,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:34,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-25 04:33:34,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-25 04:33:34,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:33:34,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-25 04:33:34,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-25 04:33:34,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:34,728 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:33:34,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:34,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1334811814, now seen corresponding path program 2 times [2021-11-25 04:33:34,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:34,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68328275] [2021-11-25 04:33:34,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:34,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:35,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:35,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68328275] [2021-11-25 04:33:35,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68328275] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:35,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191277442] [2021-11-25 04:33:35,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 04:33:35,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:35,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:35,081 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:35,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 04:33:35,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 04:33:35,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:33:35,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-25 04:33:35,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:36,004 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 04:33:36,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:36,552 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 04:33:36,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191277442] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:33:36,552 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:33:36,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 34 [2021-11-25 04:33:36,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85769956] [2021-11-25 04:33:36,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:33:36,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-25 04:33:36,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:36,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-25 04:33:36,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=956, Unknown=0, NotChecked=0, Total=1122 [2021-11-25 04:33:36,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:36,555 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:36,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.529411764705882) internal successors, (256), 34 states have internal predecessors, (256), 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) [2021-11-25 04:33:36,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:36,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:36,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:36,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:36,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:36,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:36,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:36,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-11-25 04:33:36,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-11-25 04:33:36,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:33:36,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-11-25 04:33:36,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-25 04:33:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-25 04:33:39,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:33:39,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-25 04:33:39,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-25 04:33:39,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:39,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:39,485 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:33:39,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:39,485 INFO L85 PathProgramCache]: Analyzing trace with hash 766562290, now seen corresponding path program 1 times [2021-11-25 04:33:39,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:39,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387779158] [2021-11-25 04:33:39,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:39,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:39,633 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:39,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:39,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387779158] [2021-11-25 04:33:39,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387779158] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:39,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540607013] [2021-11-25 04:33:39,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:39,634 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:39,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:39,635 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:39,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-25 04:33:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:39,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 04:33:39,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:40,112 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:40,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:40,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:40,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540607013] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:33:40,513 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:33:40,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 25 [2021-11-25 04:33:40,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536808106] [2021-11-25 04:33:40,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:33:40,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-25 04:33:40,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:40,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-25 04:33:40,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2021-11-25 04:33:40,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,515 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:40,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.48) internal successors, (212), 25 states have internal predecessors, (212), 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) [2021-11-25 04:33:40,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:40,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:40,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:40,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:40,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:40,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:40,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-11-25 04:33:40,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-11-25 04:33:40,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:33:40,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-25 04:33:40,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-25 04:33:40,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:41,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-25 04:33:41,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-25 04:33:41,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:33:41,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-25 04:33:41,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-25 04:33:41,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-25 04:33:41,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:41,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-25 04:33:41,993 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:33:41,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:41,994 INFO L85 PathProgramCache]: Analyzing trace with hash 188896754, now seen corresponding path program 2 times [2021-11-25 04:33:41,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:41,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419686400] [2021-11-25 04:33:41,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:41,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:42,165 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:42,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:42,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419686400] [2021-11-25 04:33:42,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419686400] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:42,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171953676] [2021-11-25 04:33:42,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 04:33:42,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:42,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:42,168 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:42,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-25 04:33:42,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 04:33:42,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:33:42,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 04:33:42,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:42,758 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 04:33:42,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:42,993 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 04:33:42,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171953676] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:33:42,993 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:33:42,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 24 [2021-11-25 04:33:42,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948372761] [2021-11-25 04:33:42,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:33:42,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-25 04:33:42,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:42,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-25 04:33:42,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=491, Unknown=0, NotChecked=0, Total=552 [2021-11-25 04:33:42,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,995 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:42,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 10.0) internal successors, (240), 24 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 04:33:42,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:42,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:42,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:42,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:42,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:42,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:42,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-11-25 04:33:42,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-11-25 04:33:42,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:33:42,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-11-25 04:33:42,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-25 04:33:42,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-25 04:33:42,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:33:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-11-25 04:33:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:33:51,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:33:51,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-11-25 04:33:51,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:33:51,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-11-25 04:33:51,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:51,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-25 04:33:51,487 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:33:51,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:51,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1366933060, now seen corresponding path program 4 times [2021-11-25 04:33:51,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:51,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367660372] [2021-11-25 04:33:51,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:51,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:51,642 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:51,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:51,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367660372] [2021-11-25 04:33:51,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367660372] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:51,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759327291] [2021-11-25 04:33:51,643 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 04:33:51,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:51,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:51,648 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:51,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-25 04:33:51,773 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 04:33:51,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:33:51,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 04:33:51,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:52,252 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:52,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:52,756 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:52,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759327291] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:33:52,757 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:33:52,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 28 [2021-11-25 04:33:52,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058937722] [2021-11-25 04:33:52,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:33:52,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-25 04:33:52,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:52,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-25 04:33:52,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2021-11-25 04:33:52,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:52,760 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:52,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 8.035714285714286) internal successors, (225), 28 states have internal predecessors, (225), 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) [2021-11-25 04:33:52,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:52,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:52,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:52,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:52,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:52,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:52,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:52,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:33:52,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-11-25 04:33:52,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:33:52,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:33:52,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-11-25 04:33:52,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:33:52,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2021-11-25 04:33:52,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:53,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:53,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:33:53,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:53,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:33:53,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:33:53,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:33:53,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:33:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-11-25 04:33:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:33:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:33:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-11-25 04:33:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:33:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-11-25 04:33:53,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-25 04:33:53,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:54,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-25 04:33:54,001 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:33:54,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:54,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1945829902, now seen corresponding path program 5 times [2021-11-25 04:33:54,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:54,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392971224] [2021-11-25 04:33:54,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:54,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:56,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:56,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392971224] [2021-11-25 04:33:56,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392971224] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:56,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832031023] [2021-11-25 04:33:56,362 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-25 04:33:56,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:56,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:56,363 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:56,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-25 04:33:56,550 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-11-25 04:33:56,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:33:56,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 119 conjunts are in the unsatisfiable core [2021-11-25 04:33:56,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:56,596 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 [2021-11-25 04:33:56,644 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 04:33:56,644 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 [2021-11-25 04:33:56,722 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-11-25 04:33:56,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 30 [2021-11-25 04:33:57,256 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-25 04:33:57,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 34 [2021-11-25 04:33:57,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 04:33:58,152 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 6 treesize of output 5 [2021-11-25 04:33:58,397 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 6 treesize of output 5 [2021-11-25 04:33:58,661 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 6 treesize of output 5 [2021-11-25 04:34:00,051 INFO L354 Elim1Store]: treesize reduction 51, result has 37.8 percent of original size [2021-11-25 04:34:00,051 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 38 treesize of output 41 [2021-11-25 04:34:00,606 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:00,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:34:02,778 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_445 (Array Int Int))) (or (< 0 ~M~0) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_445) c_~A~0.base))) (= (let ((.cse1 (* ~M~0 4))) (+ c_~res2~0 (select .cse0 (+ c_~A~0.offset .cse1 4)) (select .cse0 (+ c_~A~0.offset .cse1)))) (let ((.cse2 (* |c_thread1Thread1of1ForFork0_~i~0#1| 4))) (+ c_~res1~0 (select .cse0 (+ .cse2 c_~A~0.offset)) (select .cse0 (+ .cse2 c_~A~0.offset 4)))))) (<= (+ ~M~0 1) |c_thread1Thread1of1ForFork0_~i~0#1|))) is different from false [2021-11-25 04:34:02,824 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_445 (Array Int Int)) (v_ArrVal_444 (Array Int Int))) (or (< 0 ~M~0) (<= (+ ~M~0 1) |c_thread1Thread1of1ForFork0_~i~0#1|) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_444) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_445) c_~A~0.base))) (= (let ((.cse1 (* |c_thread1Thread1of1ForFork0_~i~0#1| 4))) (+ (select .cse0 (+ .cse1 c_~A~0.offset 4)) c_~res1~0 (select .cse0 (+ .cse1 c_~A~0.offset)))) (let ((.cse2 (* ~M~0 4))) (+ (select .cse0 (+ c_~A~0.offset .cse2)) c_~res2~0 (select .cse0 (+ c_~A~0.offset .cse2 4)))))))) is different from false [2021-11-25 04:34:07,786 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 04:34:07,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832031023] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:34:07,786 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:34:07,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 40, 29] total 93 [2021-11-25 04:34:07,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946569736] [2021-11-25 04:34:07,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:34:07,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2021-11-25 04:34:07,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:34:07,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2021-11-25 04:34:07,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=427, Invalid=7751, Unknown=20, NotChecked=358, Total=8556 [2021-11-25 04:34:07,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:07,792 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:34:07,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 93 states have (on average 3.860215053763441) internal successors, (359), 93 states have internal predecessors, (359), 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) [2021-11-25 04:34:07,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:07,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:34:07,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:07,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:34:07,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:34:07,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:34:07,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:34:07,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:34:07,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-11-25 04:34:07,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:07,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:07,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-11-25 04:34:07,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:07,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2021-11-25 04:34:07,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-25 04:34:07,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:22,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:34:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:34:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:34:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:34:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:34:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:34:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-11-25 04:34:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-11-25 04:34:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-11-25 04:34:22,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-25 04:34:22,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-11-25 04:34:22,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-25 04:34:22,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-25 04:34:22,676 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:34:22,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:34:22,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1480607308, now seen corresponding path program 6 times [2021-11-25 04:34:22,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:34:22,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966858535] [2021-11-25 04:34:22,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:22,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:34:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:22,861 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 23 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:22,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:34:22,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966858535] [2021-11-25 04:34:22,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966858535] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:34:22,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293153335] [2021-11-25 04:34:22,862 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-25 04:34:22,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:22,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:34:22,868 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:34:22,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-25 04:34:23,020 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-11-25 04:34:23,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:34:23,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-25 04:34:23,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:34:23,529 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 29 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:23,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:34:23,964 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 29 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:23,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293153335] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:34:23,965 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:34:23,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 34 [2021-11-25 04:34:23,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010810911] [2021-11-25 04:34:23,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:34:23,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-25 04:34:23,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:34:23,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-25 04:34:23,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=915, Unknown=0, NotChecked=0, Total=1122 [2021-11-25 04:34:23,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:23,967 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:34:23,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.911764705882353) internal successors, (269), 34 states have internal predecessors, (269), 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) [2021-11-25 04:34:23,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:23,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:34:23,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:23,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:34:23,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:34:23,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:34:23,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:34:23,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:34:23,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-11-25 04:34:23,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:23,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:23,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-11-25 04:34:23,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:23,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2021-11-25 04:34:23,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-25 04:34:23,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2021-11-25 04:34:23,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:27,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:27,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:34:27,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:27,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:34:27,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:34:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:34:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:34:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:34:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-11-25 04:34:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-11-25 04:34:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-25 04:34:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-11-25 04:34:27,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-25 04:34:27,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-25 04:34:27,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-25 04:34:27,545 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:34:27,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:34:27,546 INFO L85 PathProgramCache]: Analyzing trace with hash -2007038674, now seen corresponding path program 3 times [2021-11-25 04:34:27,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:34:27,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548229191] [2021-11-25 04:34:27,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:27,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:34:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:27,707 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:27,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:34:27,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548229191] [2021-11-25 04:34:27,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548229191] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:34:27,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896513234] [2021-11-25 04:34:27,708 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 04:34:27,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:27,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:34:27,709 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:34:27,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-25 04:34:27,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 04:34:27,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:34:27,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 04:34:27,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:34:28,342 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 04:34:28,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:34:28,677 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 04:34:28,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896513234] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:34:28,677 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:34:28,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 29 [2021-11-25 04:34:28,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61973759] [2021-11-25 04:34:28,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:34:28,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-25 04:34:28,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:34:28,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-25 04:34:28,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=721, Unknown=0, NotChecked=0, Total=812 [2021-11-25 04:34:28,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:28,679 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:34:28,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.517241379310345) internal successors, (247), 29 states have internal predecessors, (247), 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) [2021-11-25 04:34:28,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:28,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:34:28,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:28,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:34:28,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:34:28,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:34:28,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:34:28,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:34:28,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2021-11-25 04:34:28,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:28,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:28,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-11-25 04:34:28,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:28,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-11-25 04:34:28,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:28,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2021-11-25 04:34:28,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-25 04:34:28,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:31,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:31,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:34:31,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:31,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:34:31,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:34:31,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:34:31,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:34:31,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:34:31,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-11-25 04:34:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-11-25 04:34:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-25 04:34:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-11-25 04:34:31,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-25 04:34:31,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-25 04:34:31,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-25 04:34:31,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-25 04:34:31,604 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:34:31,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:34:31,604 INFO L85 PathProgramCache]: Analyzing trace with hash -28436600, now seen corresponding path program 4 times [2021-11-25 04:34:31,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:34:31,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975750552] [2021-11-25 04:34:31,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:31,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:34:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:32,861 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:32,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:34:32,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975750552] [2021-11-25 04:34:32,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975750552] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:34:32,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606753030] [2021-11-25 04:34:32,863 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 04:34:32,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:32,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:34:32,864 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:34:32,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-25 04:34:32,986 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 04:34:32,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:34:32,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 93 conjunts are in the unsatisfiable core [2021-11-25 04:34:32,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:34:34,493 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:34:34,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 04:34:34,536 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 04:34:34,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:34:35,067 INFO L354 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2021-11-25 04:34:35,067 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 43 treesize of output 62 [2021-11-25 04:34:35,634 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 04:34:35,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606753030] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:34:35,634 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:34:35,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 27, 20] total 67 [2021-11-25 04:34:35,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438636261] [2021-11-25 04:34:35,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:34:35,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2021-11-25 04:34:35,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:34:35,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-11-25 04:34:35,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=4112, Unknown=0, NotChecked=0, Total=4422 [2021-11-25 04:34:35,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:35,639 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:34:35,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 4.985074626865671) internal successors, (334), 67 states have internal predecessors, (334), 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) [2021-11-25 04:34:35,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:35,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:34:35,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:35,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:34:35,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:34:35,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:34:35,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:34:35,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:34:35,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2021-11-25 04:34:35,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:35,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:35,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2021-11-25 04:34:35,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:35,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-11-25 04:34:35,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:35,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2021-11-25 04:34:35,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-25 04:34:35,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-11-25 04:34:35,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:39,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:34:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:34:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:34:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:34:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:34:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:34:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-25 04:34:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:39,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:39,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-11-25 04:34:39,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:39,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-25 04:34:39,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 04:34:39,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2021-11-25 04:34:39,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-25 04:34:39,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-11-25 04:34:39,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-25 04:34:39,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-25 04:34:39,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:39,234 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:34:39,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:34:39,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1199531772, now seen corresponding path program 3 times [2021-11-25 04:34:39,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:34:39,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449638785] [2021-11-25 04:34:39,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:39,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:34:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:39,355 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:39,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:34:39,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449638785] [2021-11-25 04:34:39,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449638785] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:34:39,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9388724] [2021-11-25 04:34:39,356 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 04:34:39,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:39,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:34:39,357 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:34:39,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-25 04:34:39,492 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-25 04:34:39,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:34:39,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 04:34:39,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:34:39,895 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 04:34:39,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:34:40,198 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 04:34:40,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9388724] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:34:40,199 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:34:40,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 23 [2021-11-25 04:34:40,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553812990] [2021-11-25 04:34:40,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:34:40,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-25 04:34:40,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:34:40,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-25 04:34:40,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2021-11-25 04:34:40,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:40,201 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:34:40,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.478260869565217) internal successors, (241), 23 states have internal predecessors, (241), 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) [2021-11-25 04:34:40,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:40,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:34:40,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:40,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:34:40,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:34:40,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:34:40,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:34:40,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:34:40,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-11-25 04:34:40,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:40,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:40,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2021-11-25 04:34:40,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:40,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-11-25 04:34:40,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-11-25 04:34:40,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. [2021-11-25 04:34:40,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-25 04:34:40,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-11-25 04:34:40,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-11-25 04:34:40,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:41,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:41,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:34:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:34:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:34:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:34:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:34:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:34:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-25 04:34:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-11-25 04:34:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-25 04:34:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 04:34:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2021-11-25 04:34:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-25 04:34:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-11-25 04:34:41,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-25 04:34:41,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-25 04:34:41,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-25 04:34:41,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:41,480 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:34:41,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:34:41,480 INFO L85 PathProgramCache]: Analyzing trace with hash -673293168, now seen corresponding path program 4 times [2021-11-25 04:34:41,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:34:41,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501553362] [2021-11-25 04:34:41,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:41,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:34:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:42,719 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:42,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:34:42,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501553362] [2021-11-25 04:34:42,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501553362] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:34:42,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087439612] [2021-11-25 04:34:42,719 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 04:34:42,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:42,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:34:42,720 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:34:42,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-25 04:34:42,836 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 04:34:42,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:34:42,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 95 conjunts are in the unsatisfiable core [2021-11-25 04:34:42,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:34:44,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 04:34:44,437 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:34:44,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 21 [2021-11-25 04:34:44,603 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 04:34:44,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:34:45,644 INFO L354 Elim1Store]: treesize reduction 35, result has 65.0 percent of original size [2021-11-25 04:34:45,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 74 [2021-11-25 04:34:46,536 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 04:34:46,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087439612] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:34:46,537 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:34:46,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 30, 23] total 76 [2021-11-25 04:34:46,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164424357] [2021-11-25 04:34:46,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:34:46,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2021-11-25 04:34:46,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:34:46,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-11-25 04:34:46,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=5326, Unknown=0, NotChecked=0, Total=5700 [2021-11-25 04:34:46,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:46,540 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:34:46,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 4.447368421052632) internal successors, (338), 76 states have internal predecessors, (338), 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) [2021-11-25 04:34:46,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:46,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:34:46,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:46,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:34:46,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:34:46,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:34:46,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:34:46,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:34:46,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-11-25 04:34:46,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:46,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:46,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2021-11-25 04:34:46,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:46,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-11-25 04:34:46,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-11-25 04:34:46,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. [2021-11-25 04:34:46,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-25 04:34:46,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-11-25 04:34:46,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-11-25 04:34:46,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-11-25 04:34:46,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:55,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:55,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:34:55,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:34:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:34:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:34:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:34:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:34:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-25 04:34:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-11-25 04:34:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-25 04:34:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 04:34:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2021-11-25 04:34:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-25 04:34:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-11-25 04:34:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-25 04:34:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-25 04:34:55,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-11-25 04:34:55,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-25 04:34:55,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:55,658 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:34:55,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:34:55,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1811983842, now seen corresponding path program 5 times [2021-11-25 04:34:55,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:34:55,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68703550] [2021-11-25 04:34:55,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:55,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:34:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:55,875 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:55,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:34:55,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68703550] [2021-11-25 04:34:55,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68703550] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:34:55,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620588313] [2021-11-25 04:34:55,876 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-25 04:34:55,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:55,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:34:55,878 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:34:55,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-25 04:34:56,030 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-11-25 04:34:56,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:34:56,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-25 04:34:56,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:34:56,640 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:56,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:34:57,132 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:57,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620588313] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:34:57,133 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:34:57,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 35 [2021-11-25 04:34:57,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837712455] [2021-11-25 04:34:57,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:34:57,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-25 04:34:57,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:34:57,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-25 04:34:57,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=991, Unknown=0, NotChecked=0, Total=1190 [2021-11-25 04:34:57,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:57,136 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:34:57,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 7.428571428571429) internal successors, (260), 35 states have internal predecessors, (260), 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) [2021-11-25 04:34:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:34:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:34:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:34:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:34:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:34:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:34:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-11-25 04:34:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:57,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:57,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2021-11-25 04:34:57,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:57,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-11-25 04:34:57,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-11-25 04:34:57,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. [2021-11-25 04:34:57,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-25 04:34:57,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-11-25 04:34:57,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-11-25 04:34:57,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-11-25 04:34:57,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-11-25 04:34:57,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:58,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:58,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:34:58,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:58,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:34:58,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:34:58,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:34:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:34:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:34:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-25 04:34:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-11-25 04:34:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:34:58,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-25 04:34:58,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 04:34:58,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2021-11-25 04:34:58,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-25 04:34:58,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-25 04:34:58,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-25 04:34:58,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-25 04:34:58,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-25 04:34:58,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-25 04:34:58,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-25 04:34:58,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-25 04:34:58,704 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:34:58,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:34:58,704 INFO L85 PathProgramCache]: Analyzing trace with hash -601891140, now seen corresponding path program 6 times [2021-11-25 04:34:58,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:34:58,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023441470] [2021-11-25 04:34:58,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:58,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:34:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:58,911 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:58,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:34:58,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023441470] [2021-11-25 04:34:58,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023441470] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:34:58,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900508837] [2021-11-25 04:34:58,912 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-25 04:34:58,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:58,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:34:58,914 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:34:58,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-25 04:34:59,107 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-11-25 04:34:59,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:34:59,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 04:34:59,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:34:59,758 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 04:34:59,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:35:00,302 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 04:35:00,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900508837] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:35:00,302 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:35:00,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 36 [2021-11-25 04:35:00,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80076703] [2021-11-25 04:35:00,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:35:00,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-25 04:35:00,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:35:00,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-25 04:35:00,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1148, Unknown=0, NotChecked=0, Total=1260 [2021-11-25 04:35:00,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:35:00,305 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:35:00,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.027777777777779) internal successors, (289), 36 states have internal predecessors, (289), 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) [2021-11-25 04:35:00,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:35:00,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:35:00,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:35:00,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:35:00,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:35:00,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:35:00,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:35:00,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:35:00,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-11-25 04:35:00,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:35:00,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:35:00,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2021-11-25 04:35:00,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:35:00,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-11-25 04:35:00,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-11-25 04:35:00,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. [2021-11-25 04:35:00,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-25 04:35:00,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2021-11-25 04:35:00,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-11-25 04:35:00,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-11-25 04:35:00,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-11-25 04:35:00,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-25 04:35:00,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:35:06,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:35:06,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 04:35:06,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:35:06,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 04:35:06,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 04:35:06,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 04:35:06,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:35:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:35:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-25 04:35:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:35:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:35:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-11-25 04:35:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 04:35:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-25 04:35:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 04:35:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2021-11-25 04:35:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-25 04:35:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-11-25 04:35:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:35:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-25 04:35:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-11-25 04:35:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-25 04:35:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-11-25 04:35:06,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-25 04:35:06,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-25 04:35:06,288 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-25 04:35:06,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:35:06,288 INFO L85 PathProgramCache]: Analyzing trace with hash -378391536, now seen corresponding path program 7 times [2021-11-25 04:35:06,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:35:06,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099094880] [2021-11-25 04:35:06,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:35:06,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:35:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 04:35:06,379 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 04:35:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 04:35:06,622 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-25 04:35:06,622 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 04:35:06,623 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-25 04:35:06,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2021-11-25 04:35:06,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2021-11-25 04:35:06,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2021-11-25 04:35:06,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-25 04:35:06,637 INFO L732 BasicCegarLoop]: Path program histogram: [7, 6, 4, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 04:35:06,644 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-25 04:35:06,644 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 04:35:06,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:35:06 BasicIcfg [2021-11-25 04:35:06,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 04:35:06,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 04:35:06,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 04:35:06,863 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 04:35:06,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:33:04" (3/4) ... [2021-11-25 04:35:06,866 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 04:35:07,047 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94ff801-0a70-42e0-bbca-f38976515bff/bin/ugemcutter-4L4vKOHkXZ/witness.graphml [2021-11-25 04:35:07,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 04:35:07,048 INFO L158 Benchmark]: Toolchain (without parser) took 124318.19ms. Allocated memory was 88.1MB in the beginning and 708.8MB in the end (delta: 620.8MB). Free memory was 54.9MB in the beginning and 553.0MB in the end (delta: -498.0MB). Peak memory consumption was 122.3MB. Max. memory is 16.1GB. [2021-11-25 04:35:07,052 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory was 46.1MB in the beginning and 46.1MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 04:35:07,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.27ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 54.7MB in the beginning and 104.8MB in the end (delta: -50.1MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2021-11-25 04:35:07,054 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.17ms. Allocated memory is still 130.0MB. Free memory was 104.8MB in the beginning and 102.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 04:35:07,054 INFO L158 Benchmark]: Boogie Preprocessor took 70.48ms. Allocated memory is still 130.0MB. Free memory was 102.8MB in the beginning and 101.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 04:35:07,055 INFO L158 Benchmark]: RCFGBuilder took 808.91ms. Allocated memory is still 130.0MB. Free memory was 101.1MB in the beginning and 75.5MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-25 04:35:07,055 INFO L158 Benchmark]: TraceAbstraction took 122822.64ms. Allocated memory was 130.0MB in the beginning and 708.8MB in the end (delta: 578.8MB). Free memory was 75.1MB in the beginning and 587.6MB in the end (delta: -512.5MB). Peak memory consumption was 429.3MB. Max. memory is 16.1GB. [2021-11-25 04:35:07,056 INFO L158 Benchmark]: Witness Printer took 184.07ms. Allocated memory is still 708.8MB. Free memory was 587.6MB in the beginning and 553.0MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-11-25 04:35:07,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory was 46.1MB in the beginning and 46.1MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.27ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 54.7MB in the beginning and 104.8MB in the end (delta: -50.1MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.17ms. Allocated memory is still 130.0MB. Free memory was 104.8MB in the beginning and 102.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.48ms. Allocated memory is still 130.0MB. Free memory was 102.8MB in the beginning and 101.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 808.91ms. Allocated memory is still 130.0MB. Free memory was 101.1MB in the beginning and 75.5MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 122822.64ms. Allocated memory was 130.0MB in the beginning and 708.8MB in the end (delta: 578.8MB). Free memory was 75.1MB in the beginning and 587.6MB in the end (delta: -512.5MB). Peak memory consumption was 429.3MB. Max. memory is 16.1GB. * Witness Printer took 184.07ms. Allocated memory is still 708.8MB. Free memory was 587.6MB in the beginning and 553.0MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 25612, positive: 18749, positive conditional: 16516, positive unconditional: 2233, negative: 6863, negative conditional: 6843, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18780, positive: 18749, positive conditional: 16516, positive unconditional: 2233, negative: 31, negative conditional: 11, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 18780, positive: 18749, positive conditional: 16516, positive unconditional: 2233, negative: 31, negative conditional: 11, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19032, positive: 18749, positive conditional: 15772, positive unconditional: 2977, negative: 283, negative conditional: 252, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 19032, positive: 18749, positive conditional: 11193, positive unconditional: 7556, negative: 283, negative conditional: 144, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 19032, positive: 18749, positive conditional: 11193, positive unconditional: 7556, negative: 283, negative conditional: 144, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1985, positive: 1919, positive conditional: 8, positive unconditional: 1911, negative: 66, negative conditional: 46, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1985, positive: 1914, positive conditional: 0, positive unconditional: 1914, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 71, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 66, negative conditional: 46, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 398, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 365, negative conditional: 226, negative unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 19032, positive: 16830, positive conditional: 11185, positive unconditional: 5645, negative: 217, negative conditional: 98, negative unconditional: 119, unknown: 1985, unknown conditional: 54, unknown unconditional: 1931] , Statistics on independence cache: Total cache size (in pairs): 1985, Positive cache size: 1919, Positive conditional cache size: 8, Positive unconditional cache size: 1911, Negative cache size: 66, Negative conditional cache size: 46, Negative unconditional cache size: 20, Eliminated conditions: 4687, Maximal queried relation: 21, Independence queries for same thread: 6832 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.3s, Number of persistent set computation: 410, Number of trivial persistent sets: 222, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2253, positive: 2233, positive conditional: 0, positive unconditional: 2233, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 25612, positive: 18749, positive conditional: 16516, positive unconditional: 2233, negative: 6863, negative conditional: 6843, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18780, positive: 18749, positive conditional: 16516, positive unconditional: 2233, negative: 31, negative conditional: 11, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 18780, positive: 18749, positive conditional: 16516, positive unconditional: 2233, negative: 31, negative conditional: 11, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19032, positive: 18749, positive conditional: 15772, positive unconditional: 2977, negative: 283, negative conditional: 252, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 19032, positive: 18749, positive conditional: 11193, positive unconditional: 7556, negative: 283, negative conditional: 144, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 19032, positive: 18749, positive conditional: 11193, positive unconditional: 7556, negative: 283, negative conditional: 144, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1985, positive: 1919, positive conditional: 8, positive unconditional: 1911, negative: 66, negative conditional: 46, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1985, positive: 1914, positive conditional: 0, positive unconditional: 1914, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 71, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 66, negative conditional: 46, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 398, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 365, negative conditional: 226, negative unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 19032, positive: 16830, positive conditional: 11185, positive unconditional: 5645, negative: 217, negative conditional: 98, negative unconditional: 119, unknown: 1985, unknown conditional: 54, unknown unconditional: 1931] , Statistics on independence cache: Total cache size (in pairs): 1985, Positive cache size: 1919, Positive conditional cache size: 8, Positive unconditional cache size: 1911, Negative cache size: 66, Negative conditional cache size: 46, Negative unconditional cache size: 20, Eliminated conditions: 4687, Maximal queried relation: 21, Independence queries for same thread: 6832 - 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: 104]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L40] 0 int* A; VAL [A={0:0}] [L41] 0 int res1, res2, M, N; VAL [A={0:0}, M=0, N=0, res1=0, res2=0] [L86] 0 pthread_t t1, t2, t3; VAL [A={0:0}, M=0, N=0, res1=0, res2=0, t1={6:0}, t2={7:0}, t3={5:0}] [L89] 0 M = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, A={0:0}, M=1, N=0, res1=0, res2=0, t1={6:0}, t2={7:0}, t3={5:0}] [L90] 0 N = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=2, A={0:0}, M=1, N=2, res1=0, res2=0, t1={6:0}, t2={7:0}, t3={5:0}] [L91] CALL, EXPR 0 create_fresh_int_array(N) [L110] CALL 0 assume_abort_if_not(size >= 0) [L37] COND FALSE 0 !(!cond) VAL [\old(cond)=1, A={0:0}, cond=1, M=1, N=2, res1=0, res2=0] [L110] RET 0 assume_abort_if_not(size >= 0) [L111] CALL 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L37] COND FALSE 0 !(!cond) VAL [\old(cond)=1, A={0:0}, cond=1, M=1, N=2, res1=0, res2=0] [L111] RET 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L113] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); VAL [\old(size)=2, A={0:0}, arr={3:0}, M=1, malloc(sizeof(int) * (size_t)size)={3:0}, N=2, res1=0, res2=0, size=2] [L114] 0 int i = 0; VAL [\old(size)=2, A={0:0}, arr={3:0}, i=0, M=1, N=2, res1=0, res2=0, size=2] [L114] COND TRUE 0 i < size VAL [\old(size)=2, A={0:0}, arr={3:0}, i=0, M=1, N=2, res1=0, res2=0, size=2] [L115] 0 arr[i] = __VERIFIER_nondet_int() VAL [\old(size)=2, __VERIFIER_nondet_int()=2147483646, A={0:0}, arr={3:0}, i=0, M=1, N=2, res1=0, res2=0, size=2] [L114] 0 i++ VAL [\old(size)=2, A={0:0}, arr={3:0}, i=1, M=1, N=2, res1=0, res2=0, size=2] [L114] COND TRUE 0 i < size VAL [\old(size)=2, A={0:0}, arr={3:0}, i=1, M=1, N=2, res1=0, res2=0, size=2] [L115] 0 arr[i] = __VERIFIER_nondet_int() VAL [\old(size)=2, __VERIFIER_nondet_int()=1, A={0:0}, arr={3:0}, i=1, M=1, N=2, res1=0, res2=0, size=2] [L114] 0 i++ VAL [\old(size)=2, A={0:0}, arr={3:0}, i=2, M=1, N=2, res1=0, res2=0, size=2] [L114] COND FALSE 0 !(i < size) VAL [\old(size)=2, A={0:0}, arr={3:0}, i=2, M=1, N=2, res1=0, res2=0, size=2] [L117] 0 return arr; VAL [\old(size)=2, \result={3:0}, A={0:0}, arr={3:0}, i=2, M=1, N=2, res1=0, res2=0, size=2] [L91] RET, EXPR 0 create_fresh_int_array(N) [L91] 0 A = create_fresh_int_array(N) VAL [A={3:0}, create_fresh_int_array(N)={3:0}, M=1, N=2, res1=0, res2=0, t1={6:0}, t2={7:0}, t3={5:0}] [L93] CALL 0 assume_abort_if_not(M >= 0 && M <= N) [L37] COND FALSE 0 !(!cond) VAL [\old(cond)=1, A={3:0}, cond=1, M=1, N=2, res1=0, res2=0] [L93] RET 0 assume_abort_if_not(M >= 0 && M <= N) [L96] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [A={3:0}, M=1, N=2, pthread_create(&t1, 0, thread1, 0)=-3, res1=0, res2=0, t1={6:0}, t2={7:0}, t3={5:0}] [L47] 1 int i=0; VAL [A={3:0}, i=0, M=1, N=2, res1=0, res2=0] [L97] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [A={3:0}, M=1, N=2, pthread_create(&t2, 0, thread2, 0)=-2, res1=0, res2=0, t1={6:0}, t2={7:0}, t3={5:0}] [L60] 2 int i=0; VAL [A={3:0}, i=0, M=1, N=2, res1=0, res2=0] [L98] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [A={3:0}, M=1, N=2, pthread_create(&t3, 0, thread3, 0)=-1, res1=0, res2=0, t1={6:0}, t2={7:0}, t3={5:0}] [L73] 3 int i=M; VAL [A={3:0}, i=1, M=1, N=2, res1=0, res2=0] [L99] 0 \read(t1) VAL [\read(t1)=-3, A={3:0}, M=1, N=2, res1=0, res2=0, t1={6:0}, t2={7:0}, t3={5:0}] [L47] COND TRUE 1 i= 0 || a >= -2147483648 - b) [L37] COND FALSE 1 !(!cond) [L121] RET 1 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L122] CALL 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L37] COND FALSE 1 !(!cond) [L122] RET 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L123] 1 return a + b; [L49] RET, EXPR 1 plus(res1, A[i]) [L49] 1 int tmp = plus(res1, A[i]); [L52] 1 res1 = tmp VAL [A={3:0}, i=0, M=1, N=2, res1=2147483646, res2=0, tmp=2147483646] [L47] 1 i++ VAL [A={3:0}, i=1, M=1, N=2, res1=2147483646, res2=0, tmp=2147483646] [L60] COND TRUE 2 i= 0 || a >= -2147483648 - b) [L37] COND FALSE 2 !(!cond) [L121] RET 2 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L122] CALL 2 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L37] COND FALSE 2 !(!cond) [L122] RET 2 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L123] 2 return a + b; [L62] RET, EXPR 2 plus(res2, A[i]) [L62] 2 int tmp = plus(res2, A[i]); [L73] COND TRUE 3 i= 0 || a >= -2147483648 - b) [L37] COND FALSE 3 !(!cond) [L121] RET 3 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L122] CALL 3 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L37] COND FALSE 3 !(!cond) [L122] RET 3 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L123] 3 return a + b; [L75] RET, EXPR 3 plus(res2, A[i]) [L75] 3 int tmp = plus(res2, A[i]); [L65] 2 res2 = tmp VAL [A={3:0}, i=0, M=1, N=2, res1=2147483646, res2=2147483646, tmp=2147483646] [L60] 2 i++ VAL [A={3:0}, i=1, M=1, N=2, res1=2147483646, res2=2147483646, tmp=2147483646] [L78] 3 res2 = tmp VAL [A={3:0}, i=1, M=1, N=2, res1=2147483646, res2=1, tmp=1] [L73] 3 i++ VAL [A={3:0}, i=2, M=1, N=2, res1=2147483646, res2=1, tmp=1] [L47] COND TRUE 1 i= 0 || a >= -2147483648 - b) [L37] COND FALSE 1 !(!cond) [L121] RET 1 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L122] CALL 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L37] COND FALSE 1 !(!cond) [L122] RET 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L123] 1 return a + b; [L49] RET, EXPR 1 plus(res1, A[i]) [L49] 1 int tmp = plus(res1, A[i]); [L52] 1 res1 = tmp VAL [A={3:0}, i=1, M=1, N=2, res1=2147483647, res2=1, tmp=2147483647] [L47] 1 i++ VAL [A={3:0}, i=2, M=1, N=2, res1=2147483647, res2=1, tmp=2147483647] [L60] COND FALSE 2 !(i