./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack_longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/stack_longer-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w --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 4351dece6a672e511bbcb86915e62fc8a7361763ad7ab88f2e640b2d00ea50a7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 08:38:54,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 08:38:54,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 08:38:54,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 08:38:54,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 08:38:54,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 08:38:54,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 08:38:54,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 08:38:54,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 08:38:54,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 08:38:54,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 08:38:54,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 08:38:54,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 08:38:54,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 08:38:54,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 08:38:54,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 08:38:54,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 08:38:54,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 08:38:54,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 08:38:54,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 08:38:54,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 08:38:54,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 08:38:54,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 08:38:54,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 08:38:54,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 08:38:54,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 08:38:54,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 08:38:54,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 08:38:54,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 08:38:54,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 08:38:54,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 08:38:54,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 08:38:54,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 08:38:54,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 08:38:54,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 08:38:54,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 08:38:54,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 08:38:54,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 08:38:54,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 08:38:54,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 08:38:54,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 08:38:54,527 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-12-13 08:38:54,542 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 08:38:54,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 08:38:54,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 08:38:54,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 08:38:54,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 08:38:54,544 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 08:38:54,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 08:38:54,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 08:38:54,545 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 08:38:54,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 08:38:54,545 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 08:38:54,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 08:38:54,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 08:38:54,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 08:38:54,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 08:38:54,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 08:38:54,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 08:38:54,546 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 08:38:54,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 08:38:54,546 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 08:38:54,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 08:38:54,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 08:38:54,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 08:38:54,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 08:38:54,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 08:38:54,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 08:38:54,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 08:38:54,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 08:38:54,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 08:38:54,548 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-12-13 08:38:54,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 08:38:54,548 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-13 08:38:54,548 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-12-13 08:38:54,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 08:38:54,549 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-12-13 08:38:54,549 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-12-13 08:38:54,549 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_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4351dece6a672e511bbcb86915e62fc8a7361763ad7ab88f2e640b2d00ea50a7 [2022-12-13 08:38:54,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 08:38:54,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 08:38:54,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 08:38:54,730 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 08:38:54,730 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 08:38:54,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/pthread/stack_longer-1.i [2022-12-13 08:38:57,394 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 08:38:57,591 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 08:38:57,591 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/sv-benchmarks/c/pthread/stack_longer-1.i [2022-12-13 08:38:57,601 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/data/26e2ee21a/cb95dc7dece44d0ca6e5d61b4651c332/FLAGbc8b0f5db [2022-12-13 08:38:57,612 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/data/26e2ee21a/cb95dc7dece44d0ca6e5d61b4651c332 [2022-12-13 08:38:57,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 08:38:57,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 08:38:57,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 08:38:57,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 08:38:57,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 08:38:57,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:38:57" (1/1) ... [2022-12-13 08:38:57,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28571e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:57, skipping insertion in model container [2022-12-13 08:38:57,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:38:57" (1/1) ... [2022-12-13 08:38:57,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 08:38:57,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 08:38:57,916 WARN L237 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_84c92e3f-9712-42f5-8747-ec76d8b32a8d/sv-benchmarks/c/pthread/stack_longer-1.i[41527,41540] [2022-12-13 08:38:57,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 08:38:57,943 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 08:38:57,969 WARN L237 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_84c92e3f-9712-42f5-8747-ec76d8b32a8d/sv-benchmarks/c/pthread/stack_longer-1.i[41527,41540] [2022-12-13 08:38:57,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 08:38:58,041 INFO L208 MainTranslator]: Completed translation [2022-12-13 08:38:58,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:58 WrapperNode [2022-12-13 08:38:58,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 08:38:58,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 08:38:58,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 08:38:58,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 08:38:58,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:58" (1/1) ... [2022-12-13 08:38:58,067 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:58" (1/1) ... [2022-12-13 08:38:58,090 INFO L138 Inliner]: procedures = 277, calls = 39, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 155 [2022-12-13 08:38:58,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 08:38:58,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 08:38:58,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 08:38:58,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 08:38:58,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:58" (1/1) ... [2022-12-13 08:38:58,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:58" (1/1) ... [2022-12-13 08:38:58,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:58" (1/1) ... [2022-12-13 08:38:58,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:58" (1/1) ... [2022-12-13 08:38:58,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:58" (1/1) ... [2022-12-13 08:38:58,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:58" (1/1) ... [2022-12-13 08:38:58,115 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:58" (1/1) ... [2022-12-13 08:38:58,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:58" (1/1) ... [2022-12-13 08:38:58,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 08:38:58,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 08:38:58,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 08:38:58,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 08:38:58,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:58" (1/1) ... [2022-12-13 08:38:58,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 08:38:58,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:38:58,147 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 08:38:58,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 08:38:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-13 08:38:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-13 08:38:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-13 08:38:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-13 08:38:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 08:38:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 08:38:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 08:38:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 08:38:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 08:38:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 08:38:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 08:38:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 08:38:58,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 08:38:58,183 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 08:38:58,300 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 08:38:58,302 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 08:38:58,511 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 08:38:58,521 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 08:38:58,521 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 08:38:58,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:38:58 BoogieIcfgContainer [2022-12-13 08:38:58,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 08:38:58,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 08:38:58,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 08:38:58,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 08:38:58,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:38:57" (1/3) ... [2022-12-13 08:38:58,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408220f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:38:58, skipping insertion in model container [2022-12-13 08:38:58,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:58" (2/3) ... [2022-12-13 08:38:58,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408220f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:38:58, skipping insertion in model container [2022-12-13 08:38:58,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:38:58" (3/3) ... [2022-12-13 08:38:58,532 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2022-12-13 08:38:58,539 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 08:38:58,546 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 08:38:58,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 08:38:58,547 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 08:38:58,632 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 08:38:58,671 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 08:38:58,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 08:38:58,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:38:58,673 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 08:38:58,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-12-13 08:38:58,707 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 08:38:58,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2022-12-13 08:38:58,723 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5ced7d14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 08:38:58,723 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 08:38:58,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 08:38:58,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:38:58,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1825786342, now seen corresponding path program 1 times [2022-12-13 08:38:58,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:38:58,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663166899] [2022-12-13 08:38:58,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:38:58,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:38:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:38:59,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:38:59,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:38:59,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663166899] [2022-12-13 08:38:59,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663166899] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 08:38:59,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 08:38:59,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 08:38:59,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823657666] [2022-12-13 08:38:59,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 08:38:59,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 08:38:59,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:38:59,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 08:38:59,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 08:38:59,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:38:59,131 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:38:59,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 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) [2022-12-13 08:38:59,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:38:59,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:38:59,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 08:38:59,156 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 08:38:59,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:38:59,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1624515453, now seen corresponding path program 1 times [2022-12-13 08:38:59,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:38:59,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000721627] [2022-12-13 08:38:59,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:38:59,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:38:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:38:59,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:38:59,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:38:59,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000721627] [2022-12-13 08:38:59,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000721627] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 08:38:59,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 08:38:59,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 08:38:59,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922923918] [2022-12-13 08:38:59,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 08:38:59,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 08:38:59,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:38:59,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 08:38:59,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 08:38:59,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:38:59,343 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:38:59,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2022-12-13 08:38:59,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:38:59,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:38:59,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:38:59,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:38:59,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 08:38:59,388 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 08:38:59,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:38:59,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1400592983, now seen corresponding path program 1 times [2022-12-13 08:38:59,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:38:59,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310492130] [2022-12-13 08:38:59,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:38:59,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:38:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:38:59,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:38:59,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:38:59,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310492130] [2022-12-13 08:38:59,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310492130] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 08:38:59,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 08:38:59,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 08:38:59,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496326714] [2022-12-13 08:38:59,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 08:38:59,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 08:38:59,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:38:59,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 08:38:59,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 08:38:59,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:38:59,482 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:38:59,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2022-12-13 08:38:59,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:38:59,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:38:59,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:38:59,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:38:59,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:38:59,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:38:59,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 08:38:59,578 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 08:38:59,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:38:59,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1169003869, now seen corresponding path program 1 times [2022-12-13 08:38:59,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:38:59,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154404254] [2022-12-13 08:38:59,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:38:59,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:38:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:38:59,824 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:38:59,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:38:59,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154404254] [2022-12-13 08:38:59,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154404254] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 08:38:59,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 08:38:59,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 08:38:59,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778657525] [2022-12-13 08:38:59,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 08:38:59,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 08:38:59,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:38:59,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 08:38:59,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 08:38:59,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:38:59,826 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:38:59,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:38:59,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:38:59,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:38:59,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:38:59,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:38:59,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:38:59,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:38:59,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:38:59,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:38:59,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 08:38:59,860 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 08:38:59,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:38:59,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1533076447, now seen corresponding path program 1 times [2022-12-13 08:38:59,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:38:59,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701661317] [2022-12-13 08:38:59,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:38:59,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:38:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:39:00,047 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:39:00,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:39:00,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701661317] [2022-12-13 08:39:00,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701661317] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:39:00,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014134127] [2022-12-13 08:39:00,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:39:00,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:39:00,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:39:00,085 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:39:00,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 08:39:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:39:00,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 08:39:00,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:39:00,385 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:39:00,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:39:00,560 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:39:00,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014134127] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:39:00,560 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:39:00,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-12-13 08:39:00,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31497666] [2022-12-13 08:39:00,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:39:00,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 08:39:00,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:39:00,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 08:39:00,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 08:39:00,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:00,564 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:39:00,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 34.2) internal successors, (342), 10 states have internal predecessors, (342), 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) [2022-12-13 08:39:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:00,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:00,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:00,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:00,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:00,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:00,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 08:39:00,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:39:00,863 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 08:39:00,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:39:00,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1788915231, now seen corresponding path program 2 times [2022-12-13 08:39:00,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:39:00,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549277487] [2022-12-13 08:39:00,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:39:00,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:39:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:39:01,233 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-12-13 08:39:01,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:39:01,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549277487] [2022-12-13 08:39:01,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549277487] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 08:39:01,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 08:39:01,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 08:39:01,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812168497] [2022-12-13 08:39:01,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 08:39:01,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 08:39:01,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:39:01,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 08:39:01,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 08:39:01,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:01,237 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:39:01,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2022-12-13 08:39:01,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:01,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:01,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:01,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:01,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:01,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:01,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:01,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:01,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:01,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:01,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:01,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:01,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 08:39:01,351 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 08:39:01,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:39:01,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1210079789, now seen corresponding path program 1 times [2022-12-13 08:39:01,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:39:01,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087934981] [2022-12-13 08:39:01,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:39:01,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:39:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:39:01,573 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:39:01,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:39:01,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087934981] [2022-12-13 08:39:01,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087934981] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:39:01,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662037751] [2022-12-13 08:39:01,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:39:01,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:39:01,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:39:01,575 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:39:01,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 08:39:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:39:01,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 08:39:01,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:39:01,821 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 08:39:01,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 08:39:01,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662037751] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 08:39:01,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 08:39:01,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 8 [2022-12-13 08:39:01,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129463437] [2022-12-13 08:39:01,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 08:39:01,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 08:39:01,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:39:01,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 08:39:01,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 08:39:01,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:01,824 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:39:01,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:39:01,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:01,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:01,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:01,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:01,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:01,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:01,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:01,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:01,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:01,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:01,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:01,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:01,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:01,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:39:01,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 08:39:02,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:39:02,114 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 08:39:02,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:39:02,114 INFO L85 PathProgramCache]: Analyzing trace with hash 898124525, now seen corresponding path program 1 times [2022-12-13 08:39:02,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:39:02,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335533407] [2022-12-13 08:39:02,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:39:02,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:39:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:39:02,401 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 180 proven. 34 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-12-13 08:39:02,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:39:02,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335533407] [2022-12-13 08:39:02,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335533407] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:39:02,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924580906] [2022-12-13 08:39:02,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:39:02,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:39:02,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:39:02,403 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:39:02,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 08:39:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:39:02,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 08:39:02,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:39:02,737 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 180 proven. 4 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-12-13 08:39:02,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:39:02,960 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 180 proven. 4 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-12-13 08:39:02,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924580906] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:39:02,961 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:39:02,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 10 [2022-12-13 08:39:02,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166849865] [2022-12-13 08:39:02,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:39:02,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 08:39:02,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:39:02,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 08:39:02,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 08:39:02,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:02,964 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:39:02,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 28.4) internal successors, (284), 10 states have internal predecessors, (284), 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) [2022-12-13 08:39:02,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:02,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:02,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:02,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:02,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:02,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:02,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:39:02,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:03,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:03,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:03,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:03,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:03,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:03,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:39:03,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:39:03,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 08:39:03,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:39:03,323 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 08:39:03,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:39:03,323 INFO L85 PathProgramCache]: Analyzing trace with hash -272882359, now seen corresponding path program 1 times [2022-12-13 08:39:03,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:39:03,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158661390] [2022-12-13 08:39:03,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:39:03,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:39:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:39:03,628 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 12 proven. 202 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-12-13 08:39:03,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:39:03,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158661390] [2022-12-13 08:39:03,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158661390] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:39:03,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892433685] [2022-12-13 08:39:03,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:39:03,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:39:03,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:39:03,630 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:39:03,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 08:39:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:39:03,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 08:39:03,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:39:04,012 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 12 proven. 172 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-12-13 08:39:04,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:39:04,356 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 12 proven. 172 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-12-13 08:39:04,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892433685] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:39:04,356 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:39:04,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 18 [2022-12-13 08:39:04,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685688869] [2022-12-13 08:39:04,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:39:04,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 08:39:04,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:39:04,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 08:39:04,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-12-13 08:39:04,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:04,360 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:39:04,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 28.22222222222222) internal successors, (508), 18 states have internal predecessors, (508), 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) [2022-12-13 08:39:04,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:04,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:04,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:04,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:04,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:04,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:04,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:39:04,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:39:04,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:04,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:04,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:04,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:04,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:04,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:04,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:04,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:39:04,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:39:04,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-13 08:39:04,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 08:39:04,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-13 08:39:04,928 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 08:39:04,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:39:04,928 INFO L85 PathProgramCache]: Analyzing trace with hash -502459239, now seen corresponding path program 1 times [2022-12-13 08:39:04,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:39:04,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308630846] [2022-12-13 08:39:04,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:39:04,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:39:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:39:05,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2072 backedges. 1206 proven. 81 refuted. 0 times theorem prover too weak. 785 trivial. 0 not checked. [2022-12-13 08:39:05,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:39:05,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308630846] [2022-12-13 08:39:05,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308630846] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:39:05,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308913353] [2022-12-13 08:39:05,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:39:05,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:39:05,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:39:05,604 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:39:05,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 08:39:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:39:05,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 1292 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 08:39:05,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:39:06,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2072 backedges. 1237 proven. 20 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2022-12-13 08:39:06,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:39:06,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2072 backedges. 1237 proven. 20 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2022-12-13 08:39:06,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308913353] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:39:06,375 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:39:06,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 13 [2022-12-13 08:39:06,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137825762] [2022-12-13 08:39:06,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:39:06,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 08:39:06,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:39:06,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 08:39:06,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-12-13 08:39:06,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:06,379 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:39:06,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 29.846153846153847) internal successors, (388), 13 states have internal predecessors, (388), 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) [2022-12-13 08:39:06,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:06,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:06,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:06,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:06,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:06,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:06,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:39:06,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:39:06,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-12-13 08:39:06,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:06,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:06,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:06,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:06,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:06,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:06,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:06,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:39:06,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:39:06,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-13 08:39:06,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 08:39:06,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 08:39:06,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 08:39:06,878 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 08:39:06,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:39:06,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1533664609, now seen corresponding path program 2 times [2022-12-13 08:39:06,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:39:06,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662853478] [2022-12-13 08:39:06,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:39:06,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:39:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:39:08,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1944 backedges. 114 proven. 1435 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2022-12-13 08:39:08,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:39:08,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662853478] [2022-12-13 08:39:08,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662853478] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:39:08,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634861169] [2022-12-13 08:39:08,045 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 08:39:08,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:39:08,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:39:08,046 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:39:08,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 08:39:08,263 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 08:39:08,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:39:08,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 1247 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-13 08:39:08,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:39:08,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1944 backedges. 114 proven. 1405 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2022-12-13 08:39:08,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:39:09,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1944 backedges. 114 proven. 1405 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2022-12-13 08:39:09,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634861169] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:39:09,320 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:39:09,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 24 [2022-12-13 08:39:09,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441334406] [2022-12-13 08:39:09,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:39:09,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-13 08:39:09,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:39:09,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-13 08:39:09,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-12-13 08:39:09,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:09,324 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:39:09,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 30.166666666666668) internal successors, (724), 24 states have internal predecessors, (724), 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) [2022-12-13 08:39:09,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:09,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:09,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:09,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:09,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:09,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:09,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:39:09,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:39:09,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-12-13 08:39:09,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-12-13 08:39:09,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:09,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:09,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:09,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:09,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:09,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:09,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:09,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:39:09,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:39:09,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-13 08:39:09,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 08:39:09,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-13 08:39:09,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 08:39:09,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:39:09,952 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 08:39:09,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:39:09,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1086348367, now seen corresponding path program 3 times [2022-12-13 08:39:09,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:39:09,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474089982] [2022-12-13 08:39:09,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:39:09,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:39:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:39:14,793 INFO L134 CoverageAnalysis]: Checked inductivity of 9180 backedges. 314 proven. 7744 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-12-13 08:39:14,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:39:14,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474089982] [2022-12-13 08:39:14,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474089982] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:39:14,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860112811] [2022-12-13 08:39:14,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 08:39:14,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:39:14,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:39:14,795 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:39:14,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 08:39:14,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 08:39:14,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:39:14,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 08:39:14,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:39:15,037 INFO L134 CoverageAnalysis]: Checked inductivity of 9180 backedges. 566 proven. 0 refuted. 0 times theorem prover too weak. 8614 trivial. 0 not checked. [2022-12-13 08:39:15,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 08:39:15,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860112811] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 08:39:15,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 08:39:15,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [23] total 24 [2022-12-13 08:39:15,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866036320] [2022-12-13 08:39:15,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 08:39:15,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 08:39:15,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:39:15,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 08:39:15,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2022-12-13 08:39:15,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:15,039 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:39:15,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2022-12-13 08:39:15,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:15,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:15,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:15,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:15,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:15,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:15,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:39:15,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:39:15,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-12-13 08:39:15,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-12-13 08:39:15,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-12-13 08:39:15,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:39:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:39:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-13 08:39:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 08:39:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-13 08:39:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:15,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 08:39:15,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 08:39:15,336 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 08:39:15,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:39:15,338 INFO L85 PathProgramCache]: Analyzing trace with hash -159700341, now seen corresponding path program 1 times [2022-12-13 08:39:15,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:39:15,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058792650] [2022-12-13 08:39:15,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:39:15,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:39:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:39:18,482 INFO L134 CoverageAnalysis]: Checked inductivity of 12446 backedges. 1235 proven. 10777 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2022-12-13 08:39:18,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:39:18,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058792650] [2022-12-13 08:39:18,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058792650] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:39:18,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457602092] [2022-12-13 08:39:18,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:39:18,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:39:18,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:39:18,484 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:39:18,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 08:39:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:39:18,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 2786 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-13 08:39:18,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:39:19,853 INFO L134 CoverageAnalysis]: Checked inductivity of 12446 backedges. 1235 proven. 10777 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2022-12-13 08:39:19,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:39:21,452 INFO L134 CoverageAnalysis]: Checked inductivity of 12446 backedges. 1235 proven. 10777 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2022-12-13 08:39:21,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457602092] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:39:21,452 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:39:21,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 62 [2022-12-13 08:39:21,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373711062] [2022-12-13 08:39:21,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:39:21,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-12-13 08:39:21,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:39:21,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-12-13 08:39:21,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=992, Invalid=2790, Unknown=0, NotChecked=0, Total=3782 [2022-12-13 08:39:21,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:21,457 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:39:21,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 36.435483870967744) internal successors, (2259), 62 states have internal predecessors, (2259), 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) [2022-12-13 08:39:21,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:21,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:21,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:21,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:21,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:21,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:21,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:39:21,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:39:21,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-12-13 08:39:21,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-12-13 08:39:21,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-12-13 08:39:21,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:21,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:39:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:39:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-13 08:39:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 08:39:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-13 08:39:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-12-13 08:39:23,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 08:39:23,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 08:39:23,414 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 08:39:23,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:39:23,416 INFO L85 PathProgramCache]: Analyzing trace with hash -969264619, now seen corresponding path program 2 times [2022-12-13 08:39:23,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:39:23,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962381976] [2022-12-13 08:39:23,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:39:23,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:39:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:39:40,357 INFO L134 CoverageAnalysis]: Checked inductivity of 44963 backedges. 8400 proven. 35786 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2022-12-13 08:39:40,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:39:40,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962381976] [2022-12-13 08:39:40,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962381976] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:39:40,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779415749] [2022-12-13 08:39:40,358 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 08:39:40,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:39:40,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:39:40,359 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:39:40,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 08:39:41,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 08:39:41,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:39:41,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 5130 conjuncts, 60 conjunts are in the unsatisfiable core [2022-12-13 08:39:41,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:39:42,875 INFO L134 CoverageAnalysis]: Checked inductivity of 44963 backedges. 8400 proven. 35786 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2022-12-13 08:39:42,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:39:46,314 INFO L134 CoverageAnalysis]: Checked inductivity of 44963 backedges. 8400 proven. 35786 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2022-12-13 08:39:46,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779415749] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:39:46,314 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:39:46,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61, 61] total 122 [2022-12-13 08:39:46,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226932568] [2022-12-13 08:39:46,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:39:46,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 122 states [2022-12-13 08:39:46,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:39:46,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2022-12-13 08:39:46,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3782, Invalid=10980, Unknown=0, NotChecked=0, Total=14762 [2022-12-13 08:39:46,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:46,335 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:39:46,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 122 states, 122 states have (on average 42.69672131147541) internal successors, (5209), 122 states have internal predecessors, (5209), 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) [2022-12-13 08:39:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:39:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:39:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-12-13 08:39:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-12-13 08:39:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-12-13 08:39:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2022-12-13 08:39:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:52,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:39:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 08:39:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:39:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:39:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:39:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-13 08:39:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 08:39:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-13 08:39:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:39:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-12-13 08:39:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2022-12-13 08:39:52,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 08:39:52,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:39:52,405 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 08:39:52,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:39:52,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1363489877, now seen corresponding path program 3 times [2022-12-13 08:39:52,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:39:52,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899091988] [2022-12-13 08:39:52,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:39:52,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:39:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:41:34,454 INFO L134 CoverageAnalysis]: Checked inductivity of 165608 backedges. 16800 proven. 148031 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2022-12-13 08:41:34,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:41:34,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899091988] [2022-12-13 08:41:34,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899091988] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:41:34,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298173469] [2022-12-13 08:41:34,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 08:41:34,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:41:34,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:41:34,457 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:41:34,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c92e3f-9712-42f5-8747-ec76d8b32a8d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process