./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/fib_safe-6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/fib_safe-6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca933e9c322081d61da01652cda9ceed61707699c680fd4ef3d92d3ccd39b362 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 09:39:52,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 09:39:52,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 09:39:52,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 09:39:52,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 09:39:52,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 09:39:52,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 09:39:52,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 09:39:52,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 09:39:52,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 09:39:52,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 09:39:52,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 09:39:52,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 09:39:52,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 09:39:52,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 09:39:52,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 09:39:52,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 09:39:52,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 09:39:52,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 09:39:52,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 09:39:52,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 09:39:52,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 09:39:52,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 09:39:52,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 09:39:52,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 09:39:52,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 09:39:52,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 09:39:52,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 09:39:52,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 09:39:52,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 09:39:52,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 09:39:52,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 09:39:52,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 09:39:52,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 09:39:52,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 09:39:52,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 09:39:52,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 09:39:52,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 09:39:52,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 09:39:52,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 09:39:52,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 09:39:52,355 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-12-13 09:39:52,375 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 09:39:52,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 09:39:52,376 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 09:39:52,376 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 09:39:52,377 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 09:39:52,377 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 09:39:52,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 09:39:52,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 09:39:52,378 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 09:39:52,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 09:39:52,378 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 09:39:52,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 09:39:52,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 09:39:52,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 09:39:52,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 09:39:52,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 09:39:52,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 09:39:52,380 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 09:39:52,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 09:39:52,380 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 09:39:52,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 09:39:52,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 09:39:52,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 09:39:52,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 09:39:52,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:39:52,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 09:39:52,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 09:39:52,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 09:39:52,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 09:39:52,381 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-12-13 09:39:52,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 09:39:52,382 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-13 09:39:52,382 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-12-13 09:39:52,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 09:39:52,382 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-12-13 09:39:52,382 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-12-13 09:39:52,382 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_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca933e9c322081d61da01652cda9ceed61707699c680fd4ef3d92d3ccd39b362 [2022-12-13 09:39:52,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 09:39:52,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 09:39:52,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 09:39:52,570 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 09:39:52,571 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 09:39:52,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/pthread/fib_safe-6.i [2022-12-13 09:39:55,067 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 09:39:55,299 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 09:39:55,300 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/sv-benchmarks/c/pthread/fib_safe-6.i [2022-12-13 09:39:55,312 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/data/813daa1ee/8674b77d5f884ef0b11200fde47b7a41/FLAG109e92fa8 [2022-12-13 09:39:55,657 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/data/813daa1ee/8674b77d5f884ef0b11200fde47b7a41 [2022-12-13 09:39:55,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 09:39:55,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 09:39:55,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 09:39:55,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 09:39:55,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 09:39:55,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:39:55" (1/1) ... [2022-12-13 09:39:55,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c92fd09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:55, skipping insertion in model container [2022-12-13 09:39:55,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:39:55" (1/1) ... [2022-12-13 09:39:55,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 09:39:55,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 09:39:55,905 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/sv-benchmarks/c/pthread/fib_safe-6.i[30241,30254] [2022-12-13 09:39:55,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:39:55,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:39:55,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:39:55,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:39:55,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:39:55,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:39:55,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:39:55,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:39:55,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:39:55,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:39:55,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:39:55,929 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 09:39:55,954 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/sv-benchmarks/c/pthread/fib_safe-6.i[30241,30254] [2022-12-13 09:39:55,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:39:55,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:39:55,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:39:55,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:39:55,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:39:55,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:39:55,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:39:55,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:39:55,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:39:55,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:39:55,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:39:55,981 INFO L208 MainTranslator]: Completed translation [2022-12-13 09:39:55,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:55 WrapperNode [2022-12-13 09:39:55,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 09:39:55,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 09:39:55,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 09:39:55,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 09:39:55,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:55" (1/1) ... [2022-12-13 09:39:55,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:55" (1/1) ... [2022-12-13 09:39:56,011 INFO L138 Inliner]: procedures = 165, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2022-12-13 09:39:56,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 09:39:56,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 09:39:56,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 09:39:56,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 09:39:56,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:55" (1/1) ... [2022-12-13 09:39:56,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:55" (1/1) ... [2022-12-13 09:39:56,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:55" (1/1) ... [2022-12-13 09:39:56,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:55" (1/1) ... [2022-12-13 09:39:56,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:55" (1/1) ... [2022-12-13 09:39:56,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:55" (1/1) ... [2022-12-13 09:39:56,027 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:55" (1/1) ... [2022-12-13 09:39:56,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:55" (1/1) ... [2022-12-13 09:39:56,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 09:39:56,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 09:39:56,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 09:39:56,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 09:39:56,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:55" (1/1) ... [2022-12-13 09:39:56,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:39:56,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:39:56,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 09:39:56,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 09:39:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-13 09:39:56,087 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-13 09:39:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-13 09:39:56,087 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-13 09:39:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 09:39:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 09:39:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 09:39:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 09:39:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 09:39:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 09:39:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 09:39:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 09:39:56,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 09:39:56,089 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 09:39:56,188 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 09:39:56,190 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 09:39:56,343 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 09:39:56,348 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 09:39:56,348 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 09:39:56,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:39:56 BoogieIcfgContainer [2022-12-13 09:39:56,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 09:39:56,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 09:39:56,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 09:39:56,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 09:39:56,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:39:55" (1/3) ... [2022-12-13 09:39:56,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d12b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:39:56, skipping insertion in model container [2022-12-13 09:39:56,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:39:55" (2/3) ... [2022-12-13 09:39:56,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d12b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:39:56, skipping insertion in model container [2022-12-13 09:39:56,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:39:56" (3/3) ... [2022-12-13 09:39:56,357 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-6.i [2022-12-13 09:39:56,364 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 09:39:56,372 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 09:39:56,372 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 09:39:56,372 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 09:39:56,415 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 09:39:56,454 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:39:56,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 09:39:56,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:39:56,456 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 09:39:56,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-12-13 09:39:56,487 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 09:39:56,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-12-13 09:39:56,500 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;@42071417, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:39:56,501 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 09:39:56,673 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:39:56,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:39:56,679 INFO L85 PathProgramCache]: Analyzing trace with hash -2074354678, now seen corresponding path program 1 times [2022-12-13 09:39:56,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:39:56,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682930200] [2022-12-13 09:39:56,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:39:56,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:39:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:39:56,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:39:56,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:39:56,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682930200] [2022-12-13 09:39:56,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682930200] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:39:56,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:39:56,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:39:56,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873956680] [2022-12-13 09:39:56,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:39:56,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:39:56,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:39:56,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:39:56,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:39:56,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:39:56,970 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:39:56,971 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) [2022-12-13 09:39:56,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:39:57,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:39:57,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 09:39:57,015 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:39:57,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:39:57,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1842134930, now seen corresponding path program 1 times [2022-12-13 09:39:57,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:39:57,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023933463] [2022-12-13 09:39:57,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:39:57,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:39:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:39:57,162 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:39:57,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:39:57,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023933463] [2022-12-13 09:39:57,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023933463] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:39:57,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626000394] [2022-12-13 09:39:57,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:39:57,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:39:57,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:39:57,194 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:39:57,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 09:39:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:39:57,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 09:39:57,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:39:57,382 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:39:57,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:39:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:39:57,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626000394] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:39:57,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:39:57,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-12-13 09:39:57,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568547210] [2022-12-13 09:39:57,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:39:57,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 09:39:57,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:39:57,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 09:39:57,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 09:39:57,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:39:57,450 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:39:57,450 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) [2022-12-13 09:39:57,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:39:57,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:39:57,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:39:57,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:39:57,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 09:39:57,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:39:57,738 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:39:57,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:39:57,740 INFO L85 PathProgramCache]: Analyzing trace with hash -2110391314, now seen corresponding path program 2 times [2022-12-13 09:39:57,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:39:57,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859446607] [2022-12-13 09:39:57,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:39:57,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:39:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:39:58,085 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:39:58,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:39:58,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859446607] [2022-12-13 09:39:58,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859446607] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:39:58,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488427293] [2022-12-13 09:39:58,086 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 09:39:58,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:39:58,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:39:58,088 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:39:58,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 09:39:58,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 09:39:58,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:39:58,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 09:39:58,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:39:58,263 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:39:58,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:39:58,382 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:39:58,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488427293] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:39:58,382 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:39:58,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-12-13 09:39:58,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666151831] [2022-12-13 09:39:58,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:39:58,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 09:39:58,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:39:58,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 09:39:58,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-12-13 09:39:58,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:39:58,386 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:39:58,386 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) [2022-12-13 09:39:58,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:39:58,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:39:58,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:39:58,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:39:58,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:39:58,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:39:58,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 09:39:58,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:39:58,772 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:39:58,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:39:58,773 INFO L85 PathProgramCache]: Analyzing trace with hash -37301522, now seen corresponding path program 3 times [2022-12-13 09:39:58,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:39:58,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965568355] [2022-12-13 09:39:58,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:39:58,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:39:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:39:59,304 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 434 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:39:59,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:39:59,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965568355] [2022-12-13 09:39:59,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965568355] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:39:59,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040991229] [2022-12-13 09:39:59,305 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 09:39:59,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:39:59,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:39:59,306 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:39:59,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 09:39:59,413 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-12-13 09:39:59,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:39:59,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 09:39:59,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:39:59,676 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 424 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 09:39:59,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 09:39:59,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040991229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:39:59,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 09:39:59,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [17] total 30 [2022-12-13 09:39:59,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65201018] [2022-12-13 09:39:59,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:39:59,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 09:39:59,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:39:59,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 09:39:59,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870 [2022-12-13 09:39:59,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:39:59,680 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:39:59,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.066666666666666) internal successors, (181), 15 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:39:59,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:39:59,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:39:59,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:39:59,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:39:59,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:39:59,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:39:59,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:39:59,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:39:59,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 09:40:00,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:40:00,128 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:40:00,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:40:00,128 INFO L85 PathProgramCache]: Analyzing trace with hash 58065657, now seen corresponding path program 1 times [2022-12-13 09:40:00,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:40:00,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775613838] [2022-12-13 09:40:00,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:40:00,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:40:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:40:00,463 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:40:00,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:40:00,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775613838] [2022-12-13 09:40:00,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775613838] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:40:00,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449101369] [2022-12-13 09:40:00,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:40:00,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:40:00,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:40:00,465 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:40:00,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 09:40:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:40:00,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 09:40:00,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:40:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 370 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 09:40:00,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 09:40:00,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449101369] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:40:00,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 09:40:00,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [17] total 30 [2022-12-13 09:40:00,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799618803] [2022-12-13 09:40:00,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:40:00,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 09:40:00,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:40:00,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 09:40:00,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870 [2022-12-13 09:40:00,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:00,803 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:40:00,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.933333333333334) internal successors, (179), 15 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:40:00,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:40:00,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:40:00,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:00,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:00,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:00,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:40:00,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:40:00,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:00,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:00,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:01,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 09:40:01,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:40:01,199 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:40:01,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:40:01,199 INFO L85 PathProgramCache]: Analyzing trace with hash 643348835, now seen corresponding path program 1 times [2022-12-13 09:40:01,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:40:01,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820004109] [2022-12-13 09:40:01,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:40:01,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:40:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:40:01,466 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:40:01,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:40:01,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820004109] [2022-12-13 09:40:01,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820004109] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:40:01,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132850614] [2022-12-13 09:40:01,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:40:01,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:40:01,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:40:01,468 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:40:01,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 09:40:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:40:01,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 09:40:01,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:40:01,685 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:40:01,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:40:01,951 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:40:01,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132850614] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:40:01,952 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:40:01,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 31 [2022-12-13 09:40:01,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825896129] [2022-12-13 09:40:01,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:40:01,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-13 09:40:01,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:40:01,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-13 09:40:01,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2022-12-13 09:40:01,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:01,955 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:40:01,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 9.774193548387096) internal successors, (303), 31 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:40:01,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:40:01,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:40:01,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:01,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:01,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:01,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:02,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:40:02,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:40:02,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:02,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:02,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:02,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:40:02,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 09:40:02,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:40:02,512 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:40:02,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:40:02,512 INFO L85 PathProgramCache]: Analyzing trace with hash -976958038, now seen corresponding path program 2 times [2022-12-13 09:40:02,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:40:02,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624438813] [2022-12-13 09:40:02,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:40:02,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:40:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:40:05,687 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:40:05,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:40:05,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624438813] [2022-12-13 09:40:05,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624438813] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:40:05,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496022632] [2022-12-13 09:40:05,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 09:40:05,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:40:05,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:40:05,689 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:40:05,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 09:40:05,776 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 09:40:05,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:40:05,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 63 conjunts are in the unsatisfiable core [2022-12-13 09:40:05,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:40:10,567 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 161 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:40:10,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:40:16,964 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:40:16,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496022632] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:40:16,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:40:16,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 181 [2022-12-13 09:40:16,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041403189] [2022-12-13 09:40:16,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:40:16,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 181 states [2022-12-13 09:40:16,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:40:16,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2022-12-13 09:40:16,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1483, Invalid=31097, Unknown=0, NotChecked=0, Total=32580 [2022-12-13 09:40:16,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:16,971 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:40:16,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 181 states, 181 states have (on average 3.5580110497237567) internal successors, (644), 181 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:40:16,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:40:16,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:40:16,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:16,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:16,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:16,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:40:16,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:28,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:40:28,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:40:28,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:28,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:28,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:28,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:40:28,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-12-13 09:40:28,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 09:40:28,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 09:40:28,414 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:40:28,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:40:28,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1638991775, now seen corresponding path program 2 times [2022-12-13 09:40:28,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:40:28,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992348443] [2022-12-13 09:40:28,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:40:28,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:40:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:40:28,965 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 780 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:40:28,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:40:28,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992348443] [2022-12-13 09:40:28,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992348443] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:40:28,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253137235] [2022-12-13 09:40:28,966 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 09:40:28,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:40:28,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:40:28,967 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:40:28,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 09:40:29,052 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 09:40:29,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:40:29,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-13 09:40:29,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:40:29,202 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 906 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:40:29,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 09:40:29,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253137235] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:40:29,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 09:40:29,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [31] total 33 [2022-12-13 09:40:29,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92658287] [2022-12-13 09:40:29,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:40:29,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-13 09:40:29,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:40:29,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-13 09:40:29,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=795, Unknown=0, NotChecked=0, Total=1056 [2022-12-13 09:40:29,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:29,205 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:40:29,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.387096774193548) internal successors, (229), 31 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:40:29,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:40:29,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:40:29,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:29,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:29,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:29,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:40:29,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-12-13 09:40:29,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:47,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:40:47,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:40:47,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:47,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:47,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:40:47,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:40:47,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2022-12-13 09:40:47,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-13 09:40:47,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 09:40:47,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:40:47,689 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:40:47,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:40:47,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1874379276, now seen corresponding path program 3 times [2022-12-13 09:40:47,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:40:47,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130548979] [2022-12-13 09:40:47,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:40:47,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:40:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:40:50,405 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:40:50,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:40:50,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130548979] [2022-12-13 09:40:50,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130548979] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:40:50,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435893858] [2022-12-13 09:40:50,405 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 09:40:50,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:40:50,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:40:50,406 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:40:50,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 09:40:50,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-12-13 09:40:50,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:40:50,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 63 conjunts are in the unsatisfiable core [2022-12-13 09:40:50,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:40:54,897 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 117 proven. 696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:40:54,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:41:01,176 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:41:01,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435893858] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:41:01,176 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:41:01,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 181 [2022-12-13 09:41:01,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802991625] [2022-12-13 09:41:01,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:41:01,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 181 states [2022-12-13 09:41:01,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:41:01,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2022-12-13 09:41:01,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1443, Invalid=31137, Unknown=0, NotChecked=0, Total=32580 [2022-12-13 09:41:01,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:41:01,185 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:41:01,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 181 states, 181 states have (on average 3.5580110497237567) internal successors, (644), 181 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:41:01,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:41:01,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:41:01,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:41:01,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:41:01,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:41:01,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:41:01,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2022-12-13 09:41:01,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-12-13 09:41:01,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:41:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:41:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:41:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:41:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:41:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:41:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:41:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 235 states. [2022-12-13 09:41:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-13 09:41:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2022-12-13 09:41:34,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 09:41:35,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-13 09:41:35,029 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:41:35,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:41:35,030 INFO L85 PathProgramCache]: Analyzing trace with hash -166252398, now seen corresponding path program 3 times [2022-12-13 09:41:35,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:41:35,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886393074] [2022-12-13 09:41:35,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:41:35,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:41:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:41:37,477 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 0 proven. 782 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:41:37,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:41:37,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886393074] [2022-12-13 09:41:37,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886393074] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:41:37,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46598026] [2022-12-13 09:41:37,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 09:41:37,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:41:37,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:41:37,479 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:41:37,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 09:41:37,569 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-12-13 09:41:37,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:41:37,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 61 conjunts are in the unsatisfiable core [2022-12-13 09:41:37,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:41:42,398 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 161 proven. 621 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:41:42,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:41:47,988 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 0 proven. 782 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:41:47,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46598026] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:41:47,989 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:41:47,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61, 61] total 175 [2022-12-13 09:41:47,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205499023] [2022-12-13 09:41:47,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:41:47,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 175 states [2022-12-13 09:41:47,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:41:47,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 175 interpolants. [2022-12-13 09:41:47,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1633, Invalid=28817, Unknown=0, NotChecked=0, Total=30450 [2022-12-13 09:41:47,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:41:47,993 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:41:47,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 175 states, 175 states have (on average 3.5428571428571427) internal successors, (620), 175 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:41:47,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:41:47,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:41:47,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:41:47,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:41:47,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:41:47,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:41:47,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 235 states. [2022-12-13 09:41:47,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-12-13 09:41:47,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 155 states. [2022-12-13 09:41:47,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:43:06,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:43:06,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:43:06,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:43:06,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:43:06,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:43:06,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:43:06,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 271 states. [2022-12-13 09:43:06,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-13 09:43:06,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 206 states. [2022-12-13 09:43:06,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 203 states. [2022-12-13 09:43:06,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 09:43:06,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:43:06,797 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:43:06,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:43:06,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1565739606, now seen corresponding path program 4 times [2022-12-13 09:43:06,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:43:06,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522159219] [2022-12-13 09:43:06,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:43:06,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:43:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:43:09,347 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:43:09,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:43:09,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522159219] [2022-12-13 09:43:09,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522159219] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:43:09,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858938257] [2022-12-13 09:43:09,348 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 09:43:09,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:43:09,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:43:09,349 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:43:09,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 09:43:09,438 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 09:43:09,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:43:09,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 63 conjunts are in the unsatisfiable core [2022-12-13 09:43:09,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:43:14,031 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 161 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:43:14,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:43:20,450 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:43:20,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858938257] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:43:20,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:43:20,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 181 [2022-12-13 09:43:20,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412394247] [2022-12-13 09:43:20,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:43:20,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 181 states [2022-12-13 09:43:20,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:43:20,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2022-12-13 09:43:20,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1459, Invalid=31121, Unknown=0, NotChecked=0, Total=32580 [2022-12-13 09:43:20,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:43:20,454 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:43:20,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 181 states, 181 states have (on average 3.5580110497237567) internal successors, (644), 181 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:43:20,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:43:20,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:43:20,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:43:20,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:43:20,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:43:20,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:43:20,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 271 states. [2022-12-13 09:43:20,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-12-13 09:43:20,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 206 states. [2022-12-13 09:43:20,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 203 states. [2022-12-13 09:43:20,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:44:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:44:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:44:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:44:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:44:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:44:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:44:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 276 states. [2022-12-13 09:44:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-13 09:44:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2022-12-13 09:44:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2022-12-13 09:44:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 280 states. [2022-12-13 09:44:11,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 09:44:12,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:44:12,102 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:44:12,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:44:12,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1324275478, now seen corresponding path program 5 times [2022-12-13 09:44:12,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:44:12,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684528766] [2022-12-13 09:44:12,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:44:12,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:44:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:44:14,691 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:44:14,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:44:14,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684528766] [2022-12-13 09:44:14,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684528766] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:44:14,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794947557] [2022-12-13 09:44:14,691 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 09:44:14,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:44:14,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:44:14,692 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:44:14,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 09:44:14,769 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-12-13 09:44:14,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:44:14,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 63 conjunts are in the unsatisfiable core [2022-12-13 09:44:14,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:44:19,651 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 117 proven. 696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:44:19,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:44:25,825 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:44:25,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794947557] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:44:25,825 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:44:25,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 181 [2022-12-13 09:44:25,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746312513] [2022-12-13 09:44:25,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:44:25,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 181 states [2022-12-13 09:44:25,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:44:25,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2022-12-13 09:44:25,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1487, Invalid=31093, Unknown=0, NotChecked=0, Total=32580 [2022-12-13 09:44:25,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:44:25,831 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:44:25,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 181 states, 181 states have (on average 3.5580110497237567) internal successors, (644), 181 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:44:25,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:44:25,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:44:25,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:44:25,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:44:25,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:44:25,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:44:25,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 276 states. [2022-12-13 09:44:25,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-12-13 09:44:25,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2022-12-13 09:44:25,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 220 states. [2022-12-13 09:44:25,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 280 states. [2022-12-13 09:44:25,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:47:24,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:47:24,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:47:24,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:47:24,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:47:24,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:47:24,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:47:24,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 342 states. [2022-12-13 09:47:24,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-13 09:47:24,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 256 states. [2022-12-13 09:47:24,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 294 states. [2022-12-13 09:47:24,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 368 states. [2022-12-13 09:47:24,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 246 states. [2022-12-13 09:47:24,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 09:47:24,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 09:47:24,599 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:47:24,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:47:24,600 INFO L85 PathProgramCache]: Analyzing trace with hash -637492308, now seen corresponding path program 6 times [2022-12-13 09:47:24,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:47:24,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673484493] [2022-12-13 09:47:24,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:47:24,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:47:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:47:26,980 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:47:26,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:47:26,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673484493] [2022-12-13 09:47:26,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673484493] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:47:26,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622070365] [2022-12-13 09:47:26,980 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 09:47:26,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:47:26,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:47:26,981 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:47:26,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 09:47:27,063 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-12-13 09:47:27,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:47:27,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 63 conjunts are in the unsatisfiable core [2022-12-13 09:47:27,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:47:31,877 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 117 proven. 696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:47:31,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:47:37,833 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:47:37,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622070365] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:47:37,833 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:47:37,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 181 [2022-12-13 09:47:37,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971113451] [2022-12-13 09:47:37,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:47:37,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 181 states [2022-12-13 09:47:37,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:47:37,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2022-12-13 09:47:37,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1443, Invalid=31137, Unknown=0, NotChecked=0, Total=32580 [2022-12-13 09:47:37,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:47:37,840 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:47:37,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 181 states, 181 states have (on average 3.5580110497237567) internal successors, (644), 181 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:47:37,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:47:37,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:47:37,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:47:37,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:47:37,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:47:37,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:47:37,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 342 states. [2022-12-13 09:47:37,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-12-13 09:47:37,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 256 states. [2022-12-13 09:47:37,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 294 states. [2022-12-13 09:47:37,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 368 states. [2022-12-13 09:47:37,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 246 states. [2022-12-13 09:47:37,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:49:19,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:49:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:49:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:49:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:49:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:49:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:49:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 353 states. [2022-12-13 09:49:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-13 09:49:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 273 states. [2022-12-13 09:49:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 308 states. [2022-12-13 09:49:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 389 states. [2022-12-13 09:49:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 270 states. [2022-12-13 09:49:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 276 states. [2022-12-13 09:49:19,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 09:49:19,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 09:49:19,566 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:49:19,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:49:19,567 INFO L85 PathProgramCache]: Analyzing trace with hash 2032488160, now seen corresponding path program 7 times [2022-12-13 09:49:19,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:49:19,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644624633] [2022-12-13 09:49:19,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:49:19,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:49:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:49:22,229 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:49:22,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:49:22,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644624633] [2022-12-13 09:49:22,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644624633] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:49:22,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699180423] [2022-12-13 09:49:22,229 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 09:49:22,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:49:22,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:49:22,230 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:49:22,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 09:49:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:49:22,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 63 conjunts are in the unsatisfiable core [2022-12-13 09:49:22,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:49:27,762 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 80 proven. 733 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:49:27,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:49:34,195 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:49:34,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699180423] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:49:34,195 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:49:34,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 181 [2022-12-13 09:49:34,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821839857] [2022-12-13 09:49:34,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:49:34,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 181 states [2022-12-13 09:49:34,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:49:34,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2022-12-13 09:49:34,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=30984, Unknown=0, NotChecked=0, Total=32580 [2022-12-13 09:49:34,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:49:34,200 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:49:34,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 181 states, 181 states have (on average 3.5580110497237567) internal successors, (644), 181 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:49:34,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:49:34,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:49:34,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:49:34,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:49:34,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:49:34,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:49:34,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 353 states. [2022-12-13 09:49:34,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-12-13 09:49:34,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 273 states. [2022-12-13 09:49:34,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 308 states. [2022-12-13 09:49:34,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 389 states. [2022-12-13 09:49:34,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 270 states. [2022-12-13 09:49:34,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 276 states. [2022-12-13 09:49:34,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:53:12,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:53:12,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:53:12,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:53:12,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:53:12,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:53:12,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:53:12,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 407 states. [2022-12-13 09:53:12,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-13 09:53:12,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 335 states. [2022-12-13 09:53:12,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 400 states. [2022-12-13 09:53:12,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 435 states. [2022-12-13 09:53:12,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-12-13 09:53:12,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 393 states. [2022-12-13 09:53:12,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-12-13 09:53:12,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 09:53:13,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 09:53:13,123 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:53:13,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:53:13,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1597140910, now seen corresponding path program 4 times [2022-12-13 09:53:13,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:53:13,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639049430] [2022-12-13 09:53:13,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:53:13,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:53:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:53:15,721 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 0 proven. 807 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:53:15,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:53:15,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639049430] [2022-12-13 09:53:15,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639049430] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:53:15,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438780251] [2022-12-13 09:53:15,721 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 09:53:15,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:53:15,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:53:15,722 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:53:15,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c80d9-e11b-4765-a358-3c3f0474a4e1/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 09:53:15,802 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 09:53:15,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:53:15,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 62 conjunts are in the unsatisfiable core [2022-12-13 09:53:15,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:53:20,803 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 161 proven. 646 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:53:20,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:53:26,514 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 0 proven. 807 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:53:26,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438780251] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:53:26,515 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:53:26,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62, 62] total 178 [2022-12-13 09:53:26,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960221333] [2022-12-13 09:53:26,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:53:26,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 178 states [2022-12-13 09:53:26,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:53:26,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 178 interpolants. [2022-12-13 09:53:26,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1564, Invalid=29942, Unknown=0, NotChecked=0, Total=31506 [2022-12-13 09:53:26,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:53:26,520 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:53:26,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 178 states, 178 states have (on average 3.567415730337079) internal successors, (635), 178 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:53:26,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:53:26,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:53:26,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:53:26,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:53:26,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:53:26,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 09:53:26,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 407 states. [2022-12-13 09:53:26,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-12-13 09:53:26,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 335 states. [2022-12-13 09:53:26,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 400 states. [2022-12-13 09:53:26,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 435 states. [2022-12-13 09:53:26,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 295 states. [2022-12-13 09:53:26,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 393 states. [2022-12-13 09:53:26,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 295 states. [2022-12-13 09:53:26,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.