./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/fib_safe-7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/fib_safe-7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6 --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 2a12d5b905fa07b94a851888f481630fccc5d15913fb6b7efa54c908526d1783 --- 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-e04fb08 [2022-11-16 05:28:49,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 05:28:49,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 05:28:49,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 05:28:49,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 05:28:49,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 05:28:49,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 05:28:49,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 05:28:49,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 05:28:49,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 05:28:49,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 05:28:49,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 05:28:49,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 05:28:49,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 05:28:49,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 05:28:49,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 05:28:49,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 05:28:49,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 05:28:49,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 05:28:49,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 05:28:49,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 05:28:49,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 05:28:49,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 05:28:49,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 05:28:49,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 05:28:49,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 05:28:49,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 05:28:49,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 05:28:49,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 05:28:49,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 05:28:49,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 05:28:49,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 05:28:49,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 05:28:49,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 05:28:49,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 05:28:49,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 05:28:49,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 05:28:49,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 05:28:49,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 05:28:49,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 05:28:49,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 05:28:49,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-11-16 05:28:49,414 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 05:28:49,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 05:28:49,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 05:28:49,415 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 05:28:49,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 05:28:49,416 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 05:28:49,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 05:28:49,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 05:28:49,417 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 05:28:49,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 05:28:49,418 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 05:28:49,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 05:28:49,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 05:28:49,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 05:28:49,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 05:28:49,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 05:28:49,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 05:28:49,419 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 05:28:49,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 05:28:49,420 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 05:28:49,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 05:28:49,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 05:28:49,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 05:28:49,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-16 05:28:49,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 05:28:49,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 05:28:49,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 05:28:49,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 05:28:49,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 05:28:49,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 05:28:49,423 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-11-16 05:28:49,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 05:28:49,424 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 05:28:49,424 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-16 05:28:49,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 05:28:49,424 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-16 05:28:49,424 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-16 05:28:49,425 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_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a12d5b905fa07b94a851888f481630fccc5d15913fb6b7efa54c908526d1783 [2022-11-16 05:28:49,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 05:28:49,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 05:28:49,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 05:28:49,804 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 05:28:49,805 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 05:28:49,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/../../sv-benchmarks/c/pthread/fib_safe-7.i [2022-11-16 05:28:49,881 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/data/d4b20e3a4/c3e3fb2d77454ca4bd194c3cef846425/FLAG9fcd3f31f [2022-11-16 05:28:50,439 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 05:28:50,440 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/sv-benchmarks/c/pthread/fib_safe-7.i [2022-11-16 05:28:50,466 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/data/d4b20e3a4/c3e3fb2d77454ca4bd194c3cef846425/FLAG9fcd3f31f [2022-11-16 05:28:50,727 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/data/d4b20e3a4/c3e3fb2d77454ca4bd194c3cef846425 [2022-11-16 05:28:50,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 05:28:50,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 05:28:50,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 05:28:50,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 05:28:50,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 05:28:50,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:28:50" (1/1) ... [2022-11-16 05:28:50,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d0b508d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:28:50, skipping insertion in model container [2022-11-16 05:28:50,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:28:50" (1/1) ... [2022-11-16 05:28:50,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 05:28:50,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 05:28:51,282 WARN L229 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_569eba0b-25ef-417b-9183-e1b2d8cc5e55/sv-benchmarks/c/pthread/fib_safe-7.i[30241,30254] [2022-11-16 05:28:51,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 05:28:51,316 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 05:28:51,366 WARN L229 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_569eba0b-25ef-417b-9183-e1b2d8cc5e55/sv-benchmarks/c/pthread/fib_safe-7.i[30241,30254] [2022-11-16 05:28:51,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 05:28:51,415 INFO L208 MainTranslator]: Completed translation [2022-11-16 05:28:51,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:28:51 WrapperNode [2022-11-16 05:28:51,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 05:28:51,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 05:28:51,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 05:28:51,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 05:28:51,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:28:51" (1/1) ... [2022-11-16 05:28:51,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:28:51" (1/1) ... [2022-11-16 05:28:51,493 INFO L138 Inliner]: procedures = 165, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2022-11-16 05:28:51,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 05:28:51,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 05:28:51,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 05:28:51,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 05:28:51,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:28:51" (1/1) ... [2022-11-16 05:28:51,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:28:51" (1/1) ... [2022-11-16 05:28:51,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:28:51" (1/1) ... [2022-11-16 05:28:51,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:28:51" (1/1) ... [2022-11-16 05:28:51,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:28:51" (1/1) ... [2022-11-16 05:28:51,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:28:51" (1/1) ... [2022-11-16 05:28:51,536 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:28:51" (1/1) ... [2022-11-16 05:28:51,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:28:51" (1/1) ... [2022-11-16 05:28:51,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 05:28:51,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 05:28:51,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 05:28:51,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 05:28:51,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:28:51" (1/1) ... [2022-11-16 05:28:51,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 05:28:51,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:28:51,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 05:28:51,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 05:28:51,623 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-16 05:28:51,623 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-16 05:28:51,623 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-16 05:28:51,624 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-16 05:28:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 05:28:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 05:28:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 05:28:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 05:28:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 05:28:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 05:28:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 05:28:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 05:28:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 05:28:51,626 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 05:28:51,820 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 05:28:51,822 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 05:28:51,991 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 05:28:51,998 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 05:28:51,998 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 05:28:52,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 05:28:52 BoogieIcfgContainer [2022-11-16 05:28:52,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 05:28:52,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 05:28:52,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 05:28:52,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 05:28:52,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 05:28:50" (1/3) ... [2022-11-16 05:28:52,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d8cd8f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:28:52, skipping insertion in model container [2022-11-16 05:28:52,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:28:51" (2/3) ... [2022-11-16 05:28:52,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d8cd8f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:28:52, skipping insertion in model container [2022-11-16 05:28:52,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 05:28:52" (3/3) ... [2022-11-16 05:28:52,011 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-7.i [2022-11-16 05:28:52,020 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 05:28:52,031 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 05:28:52,031 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 05:28:52,031 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 05:28:52,084 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 05:28:52,152 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 05:28:52,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-16 05:28:52,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:28:52,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-16 05:28:52,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-16 05:28:52,205 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-16 05:28:52,234 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-16 05:28:52,241 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;@c873dcd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 05:28:52,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-16 05:28:52,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:28:52,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:28:52,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1848571298, now seen corresponding path program 1 times [2022-11-16 05:28:52,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:28:52,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183451618] [2022-11-16 05:28:52,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:28:52,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:28:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:28:52,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:52,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:28:52,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183451618] [2022-11-16 05:28:52,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183451618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 05:28:52,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 05:28:52,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 05:28:52,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812310090] [2022-11-16 05:28:52,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 05:28:52,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 05:28:52,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:28:52,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 05:28:52,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 05:28:52,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:52,718 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:28:52,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 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) [2022-11-16 05:28:52,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:52,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:52,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 05:28:52,779 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:28:52,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:28:52,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1409644451, now seen corresponding path program 1 times [2022-11-16 05:28:52,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:28:52,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059505677] [2022-11-16 05:28:52,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:28:52,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:28:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:28:53,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:53,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:28:53,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059505677] [2022-11-16 05:28:53,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059505677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 05:28:53,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 05:28:53,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 05:28:53,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821447360] [2022-11-16 05:28:53,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 05:28:53,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 05:28:53,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:28:53,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 05:28:53,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 05:28:53,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:53,049 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:28:53,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2022-11-16 05:28:53,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:53,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:53,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 05:28:53,171 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:28:53,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:28:53,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1211603867, now seen corresponding path program 1 times [2022-11-16 05:28:53,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:28:53,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623805515] [2022-11-16 05:28:53,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:28:53,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:28:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:28:53,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:53,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:28:53,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623805515] [2022-11-16 05:28:53,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623805515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 05:28:53,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 05:28:53,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 05:28:53,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846419201] [2022-11-16 05:28:53,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 05:28:53,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 05:28:53,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:28:53,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 05:28:53,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 05:28:53,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:53,273 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:28:53,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2022-11-16 05:28:53,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:53,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:53,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:53,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:53,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:53,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:53,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 05:28:53,356 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:28:53,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:28:53,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1478306179, now seen corresponding path program 1 times [2022-11-16 05:28:53,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:28:53,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040125410] [2022-11-16 05:28:53,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:28:53,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:28:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:28:53,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:53,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:28:53,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040125410] [2022-11-16 05:28:53,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040125410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 05:28:53,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 05:28:53,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 05:28:53,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939971118] [2022-11-16 05:28:53,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 05:28:53,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 05:28:53,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:28:53,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 05:28:53,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 05:28:53,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:53,475 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:28:53,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2022-11-16 05:28:53,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:53,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:53,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:53,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:53,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:53,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 05:28:53,513 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:28:53,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:28:53,514 INFO L85 PathProgramCache]: Analyzing trace with hash 956206761, now seen corresponding path program 1 times [2022-11-16 05:28:53,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:28:53,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866109999] [2022-11-16 05:28:53,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:28:53,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:28:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:28:53,657 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:53,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:28:53,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866109999] [2022-11-16 05:28:53,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866109999] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:28:53,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336800765] [2022-11-16 05:28:53,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:28:53,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:28:53,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:28:53,663 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:28:53,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 05:28:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:28:53,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 05:28:53,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:28:54,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:54,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:28:54,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:54,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336800765] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:28:54,120 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:28:54,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 05:28:54,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747182800] [2022-11-16 05:28:54,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:28:54,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 05:28:54,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:28:54,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 05:28:54,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 05:28:54,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:54,123 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:28:54,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 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) [2022-11-16 05:28:54,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:54,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:54,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:54,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:54,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:54,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:54,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:54,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:54,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:54,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:54,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 05:28:54,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:28:54,412 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:28:54,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:28:54,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1538048281, now seen corresponding path program 1 times [2022-11-16 05:28:54,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:28:54,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900154388] [2022-11-16 05:28:54,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:28:54,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:28:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:28:54,538 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:54,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:28:54,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900154388] [2022-11-16 05:28:54,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900154388] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:28:54,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599796213] [2022-11-16 05:28:54,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:28:54,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:28:54,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:28:54,541 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:28:54,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 05:28:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:28:54,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 05:28:54,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:28:54,728 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:54,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:28:54,799 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:54,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599796213] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:28:54,800 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:28:54,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 05:28:54,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214067066] [2022-11-16 05:28:54,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:28:54,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 05:28:54,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:28:54,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 05:28:54,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 05:28:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:54,803 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:28:54,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 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) [2022-11-16 05:28:54,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:54,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:54,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:54,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:54,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:54,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:54,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:54,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:54,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:54,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:54,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:54,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:54,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 05:28:55,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 05:28:55,093 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:28:55,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:28:55,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1805833929, now seen corresponding path program 1 times [2022-11-16 05:28:55,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:28:55,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500245408] [2022-11-16 05:28:55,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:28:55,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:28:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:28:55,273 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:55,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:28:55,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500245408] [2022-11-16 05:28:55,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500245408] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:28:55,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350510366] [2022-11-16 05:28:55,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:28:55,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:28:55,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:28:55,276 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:28:55,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 05:28:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:28:55,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 05:28:55,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:28:55,467 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:55,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:28:55,537 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:55,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350510366] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:28:55,537 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:28:55,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 05:28:55,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950372624] [2022-11-16 05:28:55,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:28:55,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 05:28:55,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:28:55,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 05:28:55,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 05:28:55,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:55,541 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:28:55,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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) [2022-11-16 05:28:55,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:55,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:55,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:55,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:55,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:55,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:55,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:55,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:55,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:55,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 05:28:55,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:28:55,853 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:28:55,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:28:55,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2081301207, now seen corresponding path program 2 times [2022-11-16 05:28:55,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:28:55,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82030090] [2022-11-16 05:28:55,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:28:55,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:28:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:28:56,125 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:56,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:28:56,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82030090] [2022-11-16 05:28:56,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82030090] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:28:56,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656036252] [2022-11-16 05:28:56,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 05:28:56,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:28:56,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:28:56,130 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:28:56,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 05:28:56,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 05:28:56,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 05:28:56,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 05:28:56,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:28:56,378 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:56,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:28:56,570 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:56,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656036252] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:28:56,573 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:28:56,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2022-11-16 05:28:56,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337888783] [2022-11-16 05:28:56,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:28:56,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 05:28:56,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:28:56,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 05:28:56,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-16 05:28:56,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:56,578 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:28:56,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 12.0) internal successors, (204), 17 states have internal predecessors, (204), 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) [2022-11-16 05:28:56,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:56,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:56,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:56,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:56,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:56,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:56,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:56,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:56,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:56,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:56,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:56,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:56,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:56,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:56,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:56,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:28:56,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 05:28:56,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-16 05:28:56,921 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:28:56,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:28:56,922 INFO L85 PathProgramCache]: Analyzing trace with hash -5444249, now seen corresponding path program 2 times [2022-11-16 05:28:56,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:28:56,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130959062] [2022-11-16 05:28:56,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:28:56,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:28:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:28:57,118 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:57,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:28:57,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130959062] [2022-11-16 05:28:57,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130959062] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:28:57,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356951663] [2022-11-16 05:28:57,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 05:28:57,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:28:57,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:28:57,121 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:28:57,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 05:28:57,236 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 05:28:57,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 05:28:57,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 05:28:57,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:28:57,351 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:57,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:28:57,519 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:57,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356951663] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:28:57,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:28:57,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2022-11-16 05:28:57,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672415216] [2022-11-16 05:28:57,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:28:57,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 05:28:57,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:28:57,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 05:28:57,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-16 05:28:57,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:57,523 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:28:57,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 11.470588235294118) internal successors, (195), 17 states have internal predecessors, (195), 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) [2022-11-16 05:28:57,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:57,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:57,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:57,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:57,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:57,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:57,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:57,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:28:57,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:57,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:57,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:57,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:57,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:57,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:57,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:57,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:57,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:28:57,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:28:57,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 05:28:57,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:28:57,869 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:28:57,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:28:57,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1464526153, now seen corresponding path program 2 times [2022-11-16 05:28:57,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:28:57,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604438921] [2022-11-16 05:28:57,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:28:57,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:28:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:28:58,071 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:58,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:28:58,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604438921] [2022-11-16 05:28:58,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604438921] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:28:58,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471969657] [2022-11-16 05:28:58,072 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 05:28:58,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:28:58,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:28:58,074 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:28:58,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 05:28:58,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 05:28:58,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 05:28:58,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 05:28:58,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:28:58,299 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:58,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:28:58,451 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:58,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471969657] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:28:58,452 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:28:58,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-16 05:28:58,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109506268] [2022-11-16 05:28:58,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:28:58,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 05:28:58,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:28:58,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 05:28:58,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-16 05:28:58,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:58,457 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:28:58,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.222222222222221) internal successors, (202), 18 states have internal predecessors, (202), 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) [2022-11-16 05:28:58,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:58,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:58,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:58,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:58,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:58,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:58,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:58,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:28:58,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:28:58,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:28:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:28:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:58,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:58,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:28:58,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:28:58,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:28:58,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:28:58,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-16 05:28:59,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 05:28:59,048 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:28:59,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:28:59,048 INFO L85 PathProgramCache]: Analyzing trace with hash -857368023, now seen corresponding path program 3 times [2022-11-16 05:28:59,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:28:59,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181033586] [2022-11-16 05:28:59,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:28:59,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:28:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:28:59,524 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:59,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:28:59,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181033586] [2022-11-16 05:28:59,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181033586] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:28:59,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519705842] [2022-11-16 05:28:59,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 05:28:59,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:28:59,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:28:59,527 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:28:59,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 05:28:59,692 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-16 05:28:59,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 05:28:59,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 05:28:59,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:28:59,926 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:28:59,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:29:00,366 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:29:00,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519705842] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:29:00,367 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:29:00,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-16 05:29:00,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963023157] [2022-11-16 05:29:00,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:29:00,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-16 05:29:00,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:29:00,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-16 05:29:00,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 05:29:00,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:00,372 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:29:00,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 9.705882352941176) internal successors, (330), 34 states have internal predecessors, (330), 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) [2022-11-16 05:29:00,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:00,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:00,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:00,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:00,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:00,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:00,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:00,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:00,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:00,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:00,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:01,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:01,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:01,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:01,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:01,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:01,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:01,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:01,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:01,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:01,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:01,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:29:01,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 05:29:01,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-16 05:29:01,258 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:29:01,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:29:01,258 INFO L85 PathProgramCache]: Analyzing trace with hash 866023849, now seen corresponding path program 4 times [2022-11-16 05:29:01,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:29:01,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042214754] [2022-11-16 05:29:01,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:29:01,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:29:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:29:02,465 INFO L134 CoverageAnalysis]: Checked inductivity of 974 backedges. 0 proven. 974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:29:02,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:29:02,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042214754] [2022-11-16 05:29:02,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042214754] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:29:02,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273743974] [2022-11-16 05:29:02,466 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 05:29:02,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:29:02,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:29:02,471 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:29:02,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 05:29:02,624 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 05:29:02,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 05:29:02,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-16 05:29:02,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:29:02,947 INFO L134 CoverageAnalysis]: Checked inductivity of 974 backedges. 0 proven. 974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:29:02,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:29:03,667 INFO L134 CoverageAnalysis]: Checked inductivity of 974 backedges. 0 proven. 974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:29:03,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273743974] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:29:03,668 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:29:03,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 35 [2022-11-16 05:29:03,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983823355] [2022-11-16 05:29:03,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:29:03,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-16 05:29:03,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:29:03,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-16 05:29:03,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2022-11-16 05:29:03,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:03,674 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:29:03,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 7.4) internal successors, (259), 35 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 05:29:03,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:03,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:03,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:03,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:03,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:03,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:03,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:03,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:03,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:03,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:03,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:29:03,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:04,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:04,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:04,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:04,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:04,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:04,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:04,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:04,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:04,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:04,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:04,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:29:04,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:29:04,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 05:29:04,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 05:29:04,656 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:29:04,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:29:04,657 INFO L85 PathProgramCache]: Analyzing trace with hash -230230478, now seen corresponding path program 5 times [2022-11-16 05:29:04,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:29:04,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015185560] [2022-11-16 05:29:04,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:29:04,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:29:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:29:10,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:29:10,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:29:10,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015185560] [2022-11-16 05:29:10,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015185560] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:29:10,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240138156] [2022-11-16 05:29:10,821 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 05:29:10,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:29:10,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:29:10,823 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:29:10,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 05:29:10,984 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2022-11-16 05:29:10,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 05:29:10,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-16 05:29:10,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:29:20,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 212 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:29:20,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:29:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:29:32,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240138156] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:29:32,593 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:29:32,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71, 71] total 205 [2022-11-16 05:29:32,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157453925] [2022-11-16 05:29:32,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:29:32,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 205 states [2022-11-16 05:29:32,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:29:32,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 205 interpolants. [2022-11-16 05:29:32,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1839, Invalid=39981, Unknown=0, NotChecked=0, Total=41820 [2022-11-16 05:29:32,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:32,609 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:29:32,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 205 states, 205 states have (on average 3.521951219512195) internal successors, (722), 205 states have internal predecessors, (722), 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) [2022-11-16 05:29:32,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:32,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:32,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:32,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:32,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:32,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:32,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:32,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:32,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:32,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:32,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:29:32,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:29:32,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:52,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:52,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:52,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:29:52,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:29:52,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-11-16 05:29:52,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 05:29:52,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-16 05:29:52,580 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:29:52,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:29:52,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1224048696, now seen corresponding path program 6 times [2022-11-16 05:29:52,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:29:52,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097291438] [2022-11-16 05:29:52,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:29:52,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:29:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:29:53,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1116 backedges. 799 proven. 56 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-16 05:29:53,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:29:53,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097291438] [2022-11-16 05:29:53,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097291438] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:29:53,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040991786] [2022-11-16 05:29:53,124 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 05:29:53,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:29:53,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:29:53,127 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:29:53,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-16 05:29:53,293 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-11-16 05:29:53,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 05:29:53,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 05:29:53,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:29:53,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1116 backedges. 855 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-16 05:29:53,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 05:29:53,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040991786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 05:29:53,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 05:29:53,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [17] total 19 [2022-11-16 05:29:53,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591316678] [2022-11-16 05:29:53,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 05:29:53,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 05:29:53,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:29:53,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 05:29:53,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-11-16 05:29:53,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:53,479 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:29:53,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 11.647058823529411) internal successors, (198), 17 states have internal predecessors, (198), 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) [2022-11-16 05:29:53,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:53,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:53,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:53,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:53,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:53,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:53,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:53,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:53,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:53,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:53,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:29:53,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:29:53,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-11-16 05:29:53,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:57,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:57,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:29:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:29:57,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-11-16 05:29:57,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:29:57,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-16 05:29:57,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-16 05:29:57,518 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:29:57,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:29:57,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1933806679, now seen corresponding path program 7 times [2022-11-16 05:29:57,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:29:57,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527428090] [2022-11-16 05:29:57,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:29:57,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:29:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:29:58,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1116 backedges. 830 proven. 25 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-16 05:29:58,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:29:58,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527428090] [2022-11-16 05:29:58,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527428090] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:29:58,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508929038] [2022-11-16 05:29:58,018 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 05:29:58,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:29:58,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:29:58,019 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:29:58,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-16 05:29:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:29:58,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 05:29:58,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:29:58,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1116 backedges. 855 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-16 05:29:58,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 05:29:58,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508929038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 05:29:58,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 05:29:58,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [17] total 19 [2022-11-16 05:29:58,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985684280] [2022-11-16 05:29:58,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 05:29:58,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 05:29:58,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:29:58,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 05:29:58,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-11-16 05:29:58,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:58,375 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:29:58,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 11.647058823529411) internal successors, (198), 17 states have internal predecessors, (198), 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) [2022-11-16 05:29:58,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:29:58,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:58,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:58,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:29:58,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:58,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:58,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:29:58,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:58,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:58,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:29:58,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:29:58,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:29:58,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-11-16 05:29:58,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:29:58,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:30:06,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:30:06,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:30:06,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:30:06,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:30:06,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:30:06,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:30:06,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:30:06,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:30:06,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:30:06,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:30:06,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:30:06,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:30:06,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-11-16 05:30:06,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:30:06,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:30:06,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-16 05:30:07,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 05:30:07,076 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:30:07,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:30:07,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1051011169, now seen corresponding path program 1 times [2022-11-16 05:30:07,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:30:07,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631667830] [2022-11-16 05:30:07,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:30:07,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:30:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:30:08,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1186 backedges. 1038 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:30:08,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:30:08,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631667830] [2022-11-16 05:30:08,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631667830] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:30:08,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193292207] [2022-11-16 05:30:08,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:30:08,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:30:08,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:30:08,269 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:30:08,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-16 05:30:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:30:08,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-16 05:30:08,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:30:08,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1186 backedges. 1186 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:30:08,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 05:30:08,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193292207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 05:30:08,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 05:30:08,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [35] total 37 [2022-11-16 05:30:08,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415709839] [2022-11-16 05:30:08,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 05:30:08,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-16 05:30:08,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:30:08,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-16 05:30:08,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=1003, Unknown=0, NotChecked=0, Total=1332 [2022-11-16 05:30:08,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:30:08,715 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:30:08,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 7.228571428571429) internal successors, (253), 35 states have internal predecessors, (253), 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) [2022-11-16 05:30:08,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:30:08,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:30:08,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:30:08,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:30:08,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:30:08,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:30:08,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:30:08,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:30:08,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:30:08,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:30:08,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:30:08,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:30:08,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-11-16 05:30:08,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:30:08,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:30:08,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:30:36,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:30:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:30:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:30:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:30:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:30:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:30:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:30:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:30:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:30:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:30:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:30:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:30:36,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 259 states. [2022-11-16 05:30:36,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:30:36,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:30:36,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-16 05:30:36,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-16 05:30:37,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:30:37,025 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:30:37,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:30:37,027 INFO L85 PathProgramCache]: Analyzing trace with hash 885461544, now seen corresponding path program 8 times [2022-11-16 05:30:37,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:30:37,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088421767] [2022-11-16 05:30:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:30:37,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:30:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:30:42,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:30:42,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:30:42,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088421767] [2022-11-16 05:30:42,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088421767] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:30:42,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397007901] [2022-11-16 05:30:42,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 05:30:42,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:30:42,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:30:42,119 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:30:42,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-16 05:30:42,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 05:30:42,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 05:30:42,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-16 05:30:42,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:30:51,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 161 proven. 919 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:30:51,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:31:02,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:31:02,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397007901] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:31:02,553 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:31:02,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71, 71] total 205 [2022-11-16 05:31:02,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692152863] [2022-11-16 05:31:02,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:31:02,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 205 states [2022-11-16 05:31:02,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:31:02,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 205 interpolants. [2022-11-16 05:31:02,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1788, Invalid=40032, Unknown=0, NotChecked=0, Total=41820 [2022-11-16 05:31:02,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:31:02,563 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:31:02,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 205 states, 205 states have (on average 3.521951219512195) internal successors, (722), 205 states have internal predecessors, (722), 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) [2022-11-16 05:31:02,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:31:02,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:31:02,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:31:02,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:31:02,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:31:02,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:31:02,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:31:02,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:31:02,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:31:02,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:31:02,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:31:02,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:31:02,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 259 states. [2022-11-16 05:31:02,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:31:02,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:31:02,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-11-16 05:31:02,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:32:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:32:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:32:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:32:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:32:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:32:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:32:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:32:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:32:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:32:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:32:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:32:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:32:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 265 states. [2022-11-16 05:32:02,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:32:02,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:32:02,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-16 05:32:02,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2022-11-16 05:32:02,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-16 05:32:02,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-16 05:32:02,336 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:32:02,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:32:02,337 INFO L85 PathProgramCache]: Analyzing trace with hash -440649038, now seen corresponding path program 2 times [2022-11-16 05:32:02,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:32:02,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833412512] [2022-11-16 05:32:02,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:32:02,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:32:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:32:07,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 0 proven. 1043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:32:07,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:32:07,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833412512] [2022-11-16 05:32:07,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833412512] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:32:07,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546405342] [2022-11-16 05:32:07,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 05:32:07,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:32:07,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:32:07,079 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:32:07,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-16 05:32:07,218 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 05:32:07,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 05:32:07,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 69 conjunts are in the unsatisfiable core [2022-11-16 05:32:07,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:32:15,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 212 proven. 831 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:32:15,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:32:26,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 0 proven. 1043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:32:26,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546405342] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:32:26,008 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:32:26,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69, 69] total 199 [2022-11-16 05:32:26,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069041346] [2022-11-16 05:32:26,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:32:26,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 199 states [2022-11-16 05:32:26,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:32:26,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 199 interpolants. [2022-11-16 05:32:26,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2048, Invalid=37354, Unknown=0, NotChecked=0, Total=39402 [2022-11-16 05:32:26,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:32:26,015 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:32:26,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 199 states, 199 states have (on average 3.507537688442211) internal successors, (698), 199 states have internal predecessors, (698), 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) [2022-11-16 05:32:26,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:32:26,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:32:26,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:32:26,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:32:26,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:32:26,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:32:26,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:32:26,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:32:26,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:32:26,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:32:26,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:32:26,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:32:26,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 265 states. [2022-11-16 05:32:26,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:32:26,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:32:26,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-11-16 05:32:26,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 174 states. [2022-11-16 05:32:26,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:35:00,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:35:00,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:35:00,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:35:00,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:35:00,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:35:00,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:35:00,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:35:00,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:35:00,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:35:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:35:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:35:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:35:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 303 states. [2022-11-16 05:35:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:35:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:35:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-16 05:35:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 228 states. [2022-11-16 05:35:00,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 230 states. [2022-11-16 05:35:00,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-11-16 05:35:00,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-16 05:35:00,467 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:35:00,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:35:00,468 INFO L85 PathProgramCache]: Analyzing trace with hash 755564082, now seen corresponding path program 9 times [2022-11-16 05:35:00,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:35:00,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862749027] [2022-11-16 05:35:00,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:35:00,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:35:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:35:06,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:35:06,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:35:06,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862749027] [2022-11-16 05:35:06,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862749027] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:35:06,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875953305] [2022-11-16 05:35:06,200 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 05:35:06,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:35:06,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:35:06,201 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:35:06,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-16 05:35:06,369 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2022-11-16 05:35:06,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 05:35:06,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-16 05:35:06,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:35:17,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 212 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:35:17,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:35:31,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:35:31,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875953305] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:35:31,467 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:35:31,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71, 71] total 207 [2022-11-16 05:35:31,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830618182] [2022-11-16 05:35:31,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:35:31,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 207 states [2022-11-16 05:35:31,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:35:31,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 207 interpolants. [2022-11-16 05:35:31,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1818, Invalid=40824, Unknown=0, NotChecked=0, Total=42642 [2022-11-16 05:35:31,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:35:31,475 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:35:31,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 207 states, 207 states have (on average 3.502415458937198) internal successors, (725), 207 states have internal predecessors, (725), 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) [2022-11-16 05:35:31,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:35:31,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:35:31,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:35:31,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:35:31,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:35:31,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:35:31,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:35:31,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:35:31,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:35:31,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:35:31,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:35:31,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:35:31,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 303 states. [2022-11-16 05:35:31,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:35:31,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:35:31,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-11-16 05:35:31,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 228 states. [2022-11-16 05:35:31,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 230 states. [2022-11-16 05:35:31,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:37:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:37:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:37:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:37:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:37:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:37:14,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:37:14,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:37:14,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:37:14,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:37:14,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:37:14,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:37:14,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:37:14,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 308 states. [2022-11-16 05:37:14,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:37:14,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:37:14,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-16 05:37:14,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 232 states. [2022-11-16 05:37:14,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 245 states. [2022-11-16 05:37:14,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 308 states. [2022-11-16 05:37:14,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-16 05:37:14,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:37:14,904 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 05:37:14,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:37:14,904 INFO L85 PathProgramCache]: Analyzing trace with hash 63117614, now seen corresponding path program 10 times [2022-11-16 05:37:14,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:37:14,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37034392] [2022-11-16 05:37:14,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:37:14,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:37:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:37:20,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:37:20,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:37:20,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37034392] [2022-11-16 05:37:20,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37034392] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:37:20,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125813903] [2022-11-16 05:37:20,152 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 05:37:20,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:37:20,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 05:37:20,154 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:37:20,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569eba0b-25ef-417b-9183-e1b2d8cc5e55/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-16 05:37:20,297 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 05:37:20,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 05:37:20,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-16 05:37:20,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:37:29,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 161 proven. 919 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:37:29,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:37:41,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:37:41,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125813903] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:37:41,629 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:37:41,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71, 71] total 205 [2022-11-16 05:37:41,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420151343] [2022-11-16 05:37:41,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:37:41,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 205 states [2022-11-16 05:37:41,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:37:41,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 205 interpolants. [2022-11-16 05:37:41,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1840, Invalid=39980, Unknown=0, NotChecked=0, Total=41820 [2022-11-16 05:37:41,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:37:41,634 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:37:41,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 205 states, 205 states have (on average 3.521951219512195) internal successors, (722), 205 states have internal predecessors, (722), 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) [2022-11-16 05:37:41,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:37:41,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:37:41,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:37:41,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 05:37:41,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:37:41,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:37:41,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:37:41,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:37:41,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:37:41,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 05:37:41,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-16 05:37:41,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:37:41,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 308 states. [2022-11-16 05:37:41,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:37:41,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 05:37:41,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-11-16 05:37:41,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 232 states. [2022-11-16 05:37:41,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 245 states. [2022-11-16 05:37:41,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 308 states. [2022-11-16 05:37:41,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.