./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c --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_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/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_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/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_668c7975-8c35-4a72-aa18-500a7de9372f/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 4018a1168c08743b2a9b9283b6137e1dcc53bdf8ab8362348f4bbe02762305c3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 08:45:58,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 08:45:58,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 08:45:58,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 08:45:58,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 08:45:58,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 08:45:58,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 08:45:58,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 08:45:58,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 08:45:58,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 08:45:58,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 08:45:58,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 08:45:58,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 08:45:58,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 08:45:58,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 08:45:58,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 08:45:58,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 08:45:58,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 08:45:58,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 08:45:58,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 08:45:58,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 08:45:58,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 08:45:58,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 08:45:58,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 08:45:58,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 08:45:58,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 08:45:58,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 08:45:58,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 08:45:58,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 08:45:58,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 08:45:58,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 08:45:58,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 08:45:58,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 08:45:58,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 08:45:58,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 08:45:58,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 08:45:58,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 08:45:58,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 08:45:58,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 08:45:58,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 08:45:58,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 08:45:58,846 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-12-13 08:45:58,862 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 08:45:58,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 08:45:58,862 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 08:45:58,862 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 08:45:58,863 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 08:45:58,863 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 08:45:58,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 08:45:58,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 08:45:58,864 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 08:45:58,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 08:45:58,864 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 08:45:58,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 08:45:58,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 08:45:58,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 08:45:58,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 08:45:58,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 08:45:58,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 08:45:58,865 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 08:45:58,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 08:45:58,866 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 08:45:58,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 08:45:58,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 08:45:58,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 08:45:58,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 08:45:58,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 08:45:58,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 08:45:58,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 08:45:58,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 08:45:58,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 08:45:58,867 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-12-13 08:45:58,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 08:45:58,867 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-13 08:45:58,868 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-12-13 08:45:58,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 08:45:58,868 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-12-13 08:45:58,868 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-12-13 08:45:58,868 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_668c7975-8c35-4a72-aa18-500a7de9372f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4018a1168c08743b2a9b9283b6137e1dcc53bdf8ab8362348f4bbe02762305c3 [2022-12-13 08:45:59,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 08:45:59,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 08:45:59,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 08:45:59,069 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 08:45:59,069 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 08:45:59,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c [2022-12-13 08:46:01,572 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 08:46:01,716 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 08:46:01,717 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c [2022-12-13 08:46:01,721 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/data/24555844f/b2e372e839cb4296afd00aa8ab6102e2/FLAGe9bf21bc8 [2022-12-13 08:46:02,138 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/data/24555844f/b2e372e839cb4296afd00aa8ab6102e2 [2022-12-13 08:46:02,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 08:46:02,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 08:46:02,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 08:46:02,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 08:46:02,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 08:46:02,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:46:02" (1/1) ... [2022-12-13 08:46:02,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d14d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:02, skipping insertion in model container [2022-12-13 08:46:02,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:46:02" (1/1) ... [2022-12-13 08:46:02,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 08:46:02,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 08:46:02,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 08:46:02,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 08:46:02,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 08:46:02,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 08:46:02,331 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 08:46:02,332 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 08:46:02,339 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_668c7975-8c35-4a72-aa18-500a7de9372f/sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c[2525,2538] [2022-12-13 08:46:02,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 08:46:02,357 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 08:46:02,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 08:46:02,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 08:46:02,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 08:46:02,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 08:46:02,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 08:46:02,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 08:46:02,373 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_668c7975-8c35-4a72-aa18-500a7de9372f/sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c[2525,2538] [2022-12-13 08:46:02,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 08:46:02,387 INFO L208 MainTranslator]: Completed translation [2022-12-13 08:46:02,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:02 WrapperNode [2022-12-13 08:46:02,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 08:46:02,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 08:46:02,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 08:46:02,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 08:46:02,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:02" (1/1) ... [2022-12-13 08:46:02,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:02" (1/1) ... [2022-12-13 08:46:02,420 INFO L138 Inliner]: procedures = 25, calls = 45, calls flagged for inlining = 12, calls inlined = 16, statements flattened = 191 [2022-12-13 08:46:02,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 08:46:02,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 08:46:02,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 08:46:02,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 08:46:02,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:02" (1/1) ... [2022-12-13 08:46:02,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:02" (1/1) ... [2022-12-13 08:46:02,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:02" (1/1) ... [2022-12-13 08:46:02,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:02" (1/1) ... [2022-12-13 08:46:02,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:02" (1/1) ... [2022-12-13 08:46:02,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:02" (1/1) ... [2022-12-13 08:46:02,440 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:02" (1/1) ... [2022-12-13 08:46:02,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:02" (1/1) ... [2022-12-13 08:46:02,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 08:46:02,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 08:46:02,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 08:46:02,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 08:46:02,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:02" (1/1) ... [2022-12-13 08:46:02,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 08:46:02,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:46:02,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 08:46:02,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 08:46:02,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 08:46:02,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 08:46:02,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 08:46:02,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 08:46:02,508 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 08:46:02,508 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 08:46:02,508 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 08:46:02,508 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 08:46:02,508 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 08:46:02,508 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 08:46:02,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 08:46:02,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 08:46:02,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 08:46:02,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 08:46:02,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 08:46:02,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 08:46:02,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 08:46:02,511 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 08:46:02,627 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 08:46:02,629 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 08:46:02,891 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 08:46:03,004 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 08:46:03,004 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 08:46:03,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:46:03 BoogieIcfgContainer [2022-12-13 08:46:03,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 08:46:03,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 08:46:03,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 08:46:03,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 08:46:03,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:46:02" (1/3) ... [2022-12-13 08:46:03,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759b09ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:46:03, skipping insertion in model container [2022-12-13 08:46:03,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:02" (2/3) ... [2022-12-13 08:46:03,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759b09ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:46:03, skipping insertion in model container [2022-12-13 08:46:03,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:46:03" (3/3) ... [2022-12-13 08:46:03,013 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum-alt2.wvr.c [2022-12-13 08:46:03,019 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 08:46:03,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 08:46:03,027 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 08:46:03,027 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 08:46:03,075 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 08:46:03,111 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 08:46:03,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 08:46:03,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:46:03,113 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 08:46:03,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-12-13 08:46:03,139 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 08:46:03,148 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-12-13 08:46:03,152 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;@77cdd0ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 08:46:03,152 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 08:46:03,390 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:46:03,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:03,393 INFO L85 PathProgramCache]: Analyzing trace with hash 744028183, now seen corresponding path program 1 times [2022-12-13 08:46:03,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:03,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742028585] [2022-12-13 08:46:03,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:03,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:03,618 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 08:46:03,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:03,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742028585] [2022-12-13 08:46:03,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742028585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 08:46:03,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 08:46:03,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 08:46:03,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852176549] [2022-12-13 08:46:03,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 08:46:03,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 08:46:03,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:03,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 08:46:03,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 08:46:03,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:03,646 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:46:03,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:03,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:03,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:03,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 08:46:03,697 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:46:03,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:03,697 INFO L85 PathProgramCache]: Analyzing trace with hash 833131243, now seen corresponding path program 1 times [2022-12-13 08:46:03,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:03,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816587213] [2022-12-13 08:46:03,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:03,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:03,968 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 08:46:03,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:03,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816587213] [2022-12-13 08:46:03,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816587213] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 08:46:03,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 08:46:03,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 08:46:03,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327927462] [2022-12-13 08:46:03,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 08:46:03,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 08:46:03,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:03,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 08:46:03,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 08:46:03,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:03,973 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:46:03,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:03,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:03,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:04,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:04,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:04,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 08:46:04,125 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:46:04,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:04,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1379628942, now seen corresponding path program 1 times [2022-12-13 08:46:04,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:04,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792044431] [2022-12-13 08:46:04,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:04,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:04,421 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 08:46:04,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:04,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792044431] [2022-12-13 08:46:04,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792044431] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:46:04,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311647655] [2022-12-13 08:46:04,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:04,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:04,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:46:04,453 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:46:04,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 08:46:04,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:04,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 08:46:04,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:46:04,826 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 08:46:04,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:46:05,078 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 08:46:05,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311647655] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:46:05,079 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:46:05,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 25 [2022-12-13 08:46:05,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747912754] [2022-12-13 08:46:05,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:46:05,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-13 08:46:05,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:05,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-13 08:46:05,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2022-12-13 08:46:05,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:05,082 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:46:05,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.44) internal successors, (211), 25 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:05,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:05,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:05,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:05,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:05,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:05,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:46:05,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 08:46:05,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:05,652 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:46:05,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:05,652 INFO L85 PathProgramCache]: Analyzing trace with hash 358259089, now seen corresponding path program 2 times [2022-12-13 08:46:05,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:05,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499774304] [2022-12-13 08:46:05,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:05,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:06,007 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-13 08:46:06,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:06,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499774304] [2022-12-13 08:46:06,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499774304] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:46:06,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407764301] [2022-12-13 08:46:06,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 08:46:06,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:06,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:46:06,009 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:46:06,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 08:46:06,114 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 08:46:06,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:46:06,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 08:46:06,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:46:06,275 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-13 08:46:06,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:46:06,398 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-13 08:46:06,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407764301] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:46:06,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:46:06,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 21 [2022-12-13 08:46:06,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277150982] [2022-12-13 08:46:06,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:46:06,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-13 08:46:06,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:06,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-13 08:46:06,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2022-12-13 08:46:06,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:06,402 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:46:06,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.666666666666666) internal successors, (182), 21 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:06,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:06,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:06,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:46:06,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:07,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:07,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:07,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:46:07,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-13 08:46:07,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 08:46:07,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:07,321 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:46:07,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:07,322 INFO L85 PathProgramCache]: Analyzing trace with hash 141994615, now seen corresponding path program 3 times [2022-12-13 08:46:07,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:07,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223190859] [2022-12-13 08:46:07,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:07,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:07,781 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 23 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 08:46:07,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:07,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223190859] [2022-12-13 08:46:07,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223190859] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:46:07,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133496558] [2022-12-13 08:46:07,782 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 08:46:07,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:07,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:46:07,783 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:46:07,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 08:46:07,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-13 08:46:07,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:46:07,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 08:46:07,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:46:08,299 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 13 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 08:46:08,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:46:08,699 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 08:46:08,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133496558] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:46:08,699 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:46:08,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 42 [2022-12-13 08:46:08,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066187209] [2022-12-13 08:46:08,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:46:08,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-12-13 08:46:08,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:08,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-12-13 08:46:08,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1568, Unknown=0, NotChecked=0, Total=1722 [2022-12-13 08:46:08,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:08,701 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:46:08,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.309523809523809) internal successors, (307), 42 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:08,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:08,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:08,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:46:08,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-12-13 08:46:08,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:12,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:12,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:12,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:46:12,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-13 08:46:12,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-12-13 08:46:12,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 08:46:13,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:13,094 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:46:13,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:13,095 INFO L85 PathProgramCache]: Analyzing trace with hash 621088126, now seen corresponding path program 4 times [2022-12-13 08:46:13,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:13,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625657434] [2022-12-13 08:46:13,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:13,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:13,506 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 106 proven. 33 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 08:46:13,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:13,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625657434] [2022-12-13 08:46:13,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625657434] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:46:13,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139136064] [2022-12-13 08:46:13,506 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 08:46:13,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:13,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:46:13,507 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:46:13,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 08:46:13,577 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 08:46:13,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:46:13,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 08:46:13,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:46:13,941 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 78 proven. 29 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-13 08:46:13,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:46:14,354 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 83 proven. 24 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-13 08:46:14,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139136064] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:46:14,354 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:46:14,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 49 [2022-12-13 08:46:14,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661042323] [2022-12-13 08:46:14,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:46:14,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-12-13 08:46:14,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:14,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-12-13 08:46:14,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=2022, Unknown=0, NotChecked=0, Total=2352 [2022-12-13 08:46:14,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:14,358 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:46:14,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 6.795918367346939) internal successors, (333), 49 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:14,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:14,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:14,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:46:14,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-12-13 08:46:14,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2022-12-13 08:46:14,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:14,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:14,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:14,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:46:14,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-13 08:46:14,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-12-13 08:46:14,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 08:46:14,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 08:46:15,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 08:46:15,121 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:46:15,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:15,123 INFO L85 PathProgramCache]: Analyzing trace with hash -594930345, now seen corresponding path program 5 times [2022-12-13 08:46:15,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:15,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126766237] [2022-12-13 08:46:15,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:15,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:15,656 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 98 proven. 70 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 08:46:15,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:15,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126766237] [2022-12-13 08:46:15,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126766237] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:46:15,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502737845] [2022-12-13 08:46:15,656 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 08:46:15,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:15,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:46:15,658 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:46:15,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 08:46:15,806 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-12-13 08:46:15,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:46:15,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-13 08:46:15,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:46:16,574 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 103 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:46:16,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:46:17,481 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 123 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:46:17,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502737845] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:46:17,482 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:46:17,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 31, 31] total 79 [2022-12-13 08:46:17,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212887399] [2022-12-13 08:46:17,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:46:17,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-12-13 08:46:17,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:17,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-12-13 08:46:17,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=843, Invalid=5319, Unknown=0, NotChecked=0, Total=6162 [2022-12-13 08:46:17,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:17,485 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:46:17,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 5.7594936708860756) internal successors, (455), 79 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:17,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:17,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:17,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:46:17,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-12-13 08:46:17,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2022-12-13 08:46:17,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 08:46:17,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:46:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-13 08:46:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-12-13 08:46:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 08:46:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:46:18,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 08:46:18,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 08:46:18,632 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:46:18,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:18,634 INFO L85 PathProgramCache]: Analyzing trace with hash -2035141858, now seen corresponding path program 6 times [2022-12-13 08:46:18,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:18,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87027459] [2022-12-13 08:46:18,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:18,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:19,174 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 55 proven. 258 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-12-13 08:46:19,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:19,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87027459] [2022-12-13 08:46:19,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87027459] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:46:19,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538810950] [2022-12-13 08:46:19,175 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 08:46:19,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:19,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:46:19,176 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:46:19,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 08:46:19,498 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-12-13 08:46:19,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:46:19,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-13 08:46:19,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:46:20,174 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 25 proven. 98 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-12-13 08:46:20,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:46:21,030 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 29 proven. 94 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-12-13 08:46:21,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538810950] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:46:21,031 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:46:21,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 65 [2022-12-13 08:46:21,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487324891] [2022-12-13 08:46:21,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:46:21,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-12-13 08:46:21,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:21,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-12-13 08:46:21,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=3811, Unknown=0, NotChecked=0, Total=4160 [2022-12-13 08:46:21,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:21,036 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:46:21,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 6.446153846153846) internal successors, (419), 65 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:21,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:21,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:21,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:46:21,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-12-13 08:46:21,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2022-12-13 08:46:21,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 08:46:21,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:46:21,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:28,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:28,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:28,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:46:28,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-13 08:46:28,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-12-13 08:46:28,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 08:46:28,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:46:28,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:46:28,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 08:46:28,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:28,307 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:46:28,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:28,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1117554718, now seen corresponding path program 7 times [2022-12-13 08:46:28,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:28,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758832403] [2022-12-13 08:46:28,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:28,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:29,767 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 217 proven. 528 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 08:46:29,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:29,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758832403] [2022-12-13 08:46:29,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758832403] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:46:29,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550099333] [2022-12-13 08:46:29,767 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 08:46:29,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:29,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:46:29,768 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:46:29,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 08:46:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:29,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 42 conjunts are in the unsatisfiable core [2022-12-13 08:46:29,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:46:31,125 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 383 proven. 281 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-12-13 08:46:31,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:46:32,572 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 403 proven. 261 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-12-13 08:46:32,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550099333] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:46:32,572 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:46:32,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 43, 43] total 120 [2022-12-13 08:46:32,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562584291] [2022-12-13 08:46:32,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:46:32,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2022-12-13 08:46:32,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:32,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2022-12-13 08:46:32,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1310, Invalid=12970, Unknown=0, NotChecked=0, Total=14280 [2022-12-13 08:46:32,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:32,578 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:46:32,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 120 states, 120 states have (on average 5.483333333333333) internal successors, (658), 120 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:32,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:32,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:32,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:46:32,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-12-13 08:46:32,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2022-12-13 08:46:32,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 08:46:32,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:46:32,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:46:32,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:39,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:39,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:39,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:46:39,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-13 08:46:39,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-12-13 08:46:39,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 08:46:39,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:46:39,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:46:39,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-12-13 08:46:39,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 08:46:39,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:39,928 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:46:39,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:39,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1566810705, now seen corresponding path program 8 times [2022-12-13 08:46:39,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:39,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17269433] [2022-12-13 08:46:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:39,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 275 proven. 662 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 08:46:41,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:41,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17269433] [2022-12-13 08:46:41,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17269433] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:46:41,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138900406] [2022-12-13 08:46:41,228 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 08:46:41,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:41,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:46:41,229 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:46:41,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 08:46:41,416 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 08:46:41,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:46:41,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 1115 conjuncts, 46 conjunts are in the unsatisfiable core [2022-12-13 08:46:41,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:46:42,922 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 465 proven. 371 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-12-13 08:46:42,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:46:45,030 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 511 proven. 325 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-12-13 08:46:45,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138900406] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:46:45,030 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:46:45,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 47, 47] total 132 [2022-12-13 08:46:45,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808196597] [2022-12-13 08:46:45,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:46:45,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 132 states [2022-12-13 08:46:45,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:45,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2022-12-13 08:46:45,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1538, Invalid=15754, Unknown=0, NotChecked=0, Total=17292 [2022-12-13 08:46:45,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:45,045 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:46:45,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 132 states, 132 states have (on average 5.409090909090909) internal successors, (714), 132 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:45,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:45,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:45,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:46:45,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-12-13 08:46:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2022-12-13 08:46:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 08:46:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:46:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:46:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-12-13 08:46:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:46:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-13 08:46:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-12-13 08:46:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 08:46:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:46:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:46:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-12-13 08:46:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-12-13 08:46:53,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-13 08:46:53,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:53,372 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:46:53,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:53,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1877520828, now seen corresponding path program 9 times [2022-12-13 08:46:53,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:53,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015160762] [2022-12-13 08:46:53,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:53,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:54,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1208 backedges. 390 proven. 811 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 08:46:54,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:54,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015160762] [2022-12-13 08:46:54,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015160762] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:46:54,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966209032] [2022-12-13 08:46:54,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 08:46:54,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:54,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:46:54,872 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:46:54,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 08:46:55,393 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-12-13 08:46:55,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:46:55,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 44 conjunts are in the unsatisfiable core [2022-12-13 08:46:55,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:46:56,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1208 backedges. 120 proven. 685 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2022-12-13 08:46:56,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:46:57,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1208 backedges. 174 proven. 46 refuted. 0 times theorem prover too weak. 988 trivial. 0 not checked. [2022-12-13 08:46:57,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966209032] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:46:57,199 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:46:57,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 45, 12] total 98 [2022-12-13 08:46:57,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940514067] [2022-12-13 08:46:57,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:46:57,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-12-13 08:46:57,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:57,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-12-13 08:46:57,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=499, Invalid=9007, Unknown=0, NotChecked=0, Total=9506 [2022-12-13 08:46:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:57,204 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:46:57,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 5.938775510204081) internal successors, (582), 98 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:57,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:46:57,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:57,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:46:57,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-12-13 08:46:57,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2022-12-13 08:46:57,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 08:46:57,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:46:57,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:46:57,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-12-13 08:46:57,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-12-13 08:46:57,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:47:11,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:47:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:47:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:47:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:47:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:47:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:47:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:47:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:47:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:47:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:47:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:47:11,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 08:47:11,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:47:11,450 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:47:11,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:47:11,451 INFO L85 PathProgramCache]: Analyzing trace with hash -2048782780, now seen corresponding path program 10 times [2022-12-13 08:47:11,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:47:11,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712743363] [2022-12-13 08:47:11,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:47:11,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:47:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:47:13,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1848 backedges. 1273 proven. 476 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-12-13 08:47:13,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:47:13,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712743363] [2022-12-13 08:47:13,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712743363] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:47:13,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465134160] [2022-12-13 08:47:13,232 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 08:47:13,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:47:13,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:47:13,233 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:47:13,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 08:47:13,359 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 08:47:13,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:47:13,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 50 conjunts are in the unsatisfiable core [2022-12-13 08:47:13,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:47:15,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1848 backedges. 918 proven. 421 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2022-12-13 08:47:15,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:47:16,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1848 backedges. 943 proven. 396 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2022-12-13 08:47:16,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465134160] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:47:16,990 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:47:16,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 51, 51] total 145 [2022-12-13 08:47:16,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018776513] [2022-12-13 08:47:16,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:47:16,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2022-12-13 08:47:16,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:47:16,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2022-12-13 08:47:16,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2290, Invalid=18590, Unknown=0, NotChecked=0, Total=20880 [2022-12-13 08:47:16,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:47:16,994 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:47:16,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 4.993103448275862) internal successors, (724), 145 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:47:16,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:47:16,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:47:16,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:47:16,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:47:16,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:47:16,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:47:16,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:47:16,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:47:16,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:47:16,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:47:16,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:47:16,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:47:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:47:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:47:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:47:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:47:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:47:18,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:47:18,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:47:18,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:47:18,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:47:18,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:47:18,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:47:18,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-13 08:47:18,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 08:47:19,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 08:47:19,002 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:47:19,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:47:19,003 INFO L85 PathProgramCache]: Analyzing trace with hash -498818421, now seen corresponding path program 11 times [2022-12-13 08:47:19,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:47:19,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167569601] [2022-12-13 08:47:19,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:47:19,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:47:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:47:20,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1926 backedges. 1153 proven. 674 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-12-13 08:47:20,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:47:20,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167569601] [2022-12-13 08:47:20,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167569601] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:47:20,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052800795] [2022-12-13 08:47:20,992 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 08:47:20,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:47:20,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:47:20,993 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:47:20,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 08:47:21,362 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2022-12-13 08:47:21,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:47:21,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 1505 conjuncts, 62 conjunts are in the unsatisfiable core [2022-12-13 08:47:21,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:47:23,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1926 backedges. 1452 proven. 474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:47:23,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:47:25,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1926 backedges. 1452 proven. 474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:47:25,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052800795] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:47:25,727 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:47:25,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 63, 63] total 174 [2022-12-13 08:47:25,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932553577] [2022-12-13 08:47:25,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:47:25,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 174 states [2022-12-13 08:47:25,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:47:25,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 174 interpolants. [2022-12-13 08:47:25,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3559, Invalid=26543, Unknown=0, NotChecked=0, Total=30102 [2022-12-13 08:47:25,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:47:25,733 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:47:25,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 174 states, 174 states have (on average 5.919540229885057) internal successors, (1030), 174 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:47:25,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:47:25,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:47:25,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:47:25,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:47:25,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:47:25,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:47:25,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:47:25,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:47:25,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:47:25,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:47:25,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:47:25,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-12-13 08:47:25,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:47:28,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:47:28,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:47:28,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:47:28,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:47:28,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:47:28,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:47:28,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:47:28,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:47:28,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:47:28,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:47:28,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:47:28,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-13 08:47:28,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-12-13 08:47:28,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 08:47:29,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 08:47:29,093 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:47:29,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:47:29,095 INFO L85 PathProgramCache]: Analyzing trace with hash 808205476, now seen corresponding path program 12 times [2022-12-13 08:47:29,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:47:29,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287541399] [2022-12-13 08:47:29,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:47:29,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:47:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:47:32,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2421 backedges. 888 proven. 1434 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-12-13 08:47:32,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:47:32,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287541399] [2022-12-13 08:47:32,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287541399] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:47:32,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972416514] [2022-12-13 08:47:32,449 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 08:47:32,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:47:32,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:47:32,450 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:47:32,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 08:47:33,468 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 18 check-sat command(s) [2022-12-13 08:47:33,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:47:33,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 76 conjunts are in the unsatisfiable core [2022-12-13 08:47:33,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:47:37,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2421 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 969 trivial. 0 not checked. [2022-12-13 08:47:37,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:47:41,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2421 backedges. 760 proven. 667 refuted. 0 times theorem prover too weak. 994 trivial. 0 not checked. [2022-12-13 08:47:41,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972416514] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:47:41,790 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:47:41,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 77, 64] total 212 [2022-12-13 08:47:41,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705135991] [2022-12-13 08:47:41,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:47:41,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 212 states [2022-12-13 08:47:41,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:47:41,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 212 interpolants. [2022-12-13 08:47:41,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2002, Invalid=42730, Unknown=0, NotChecked=0, Total=44732 [2022-12-13 08:47:41,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:47:41,794 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:47:41,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 212 states, 212 states have (on average 4.212264150943396) internal successors, (893), 212 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:47:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:47:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:47:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:47:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:47:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:47:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:47:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:47:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:47:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:47:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:47:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:47:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-12-13 08:47:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-12-13 08:47:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:48:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:48:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:48:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:48:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:48:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:48:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:48:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:48:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:48:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:48:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:48:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:48:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-13 08:48:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-12-13 08:48:35,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 662 states. [2022-12-13 08:48:35,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-12-13 08:48:35,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 08:48:35,996 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:48:35,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:48:35,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1416390283, now seen corresponding path program 13 times [2022-12-13 08:48:35,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:48:35,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783646351] [2022-12-13 08:48:35,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:48:35,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:48:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:48:41,160 INFO L134 CoverageAnalysis]: Checked inductivity of 5800 backedges. 4307 proven. 1241 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-12-13 08:48:41,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:48:41,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783646351] [2022-12-13 08:48:41,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783646351] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:48:41,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661070535] [2022-12-13 08:48:41,160 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 08:48:41,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:48:41,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:48:41,161 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:48:41,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 08:48:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:48:41,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 2467 conjuncts, 78 conjunts are in the unsatisfiable core [2022-12-13 08:48:41,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:48:45,022 INFO L134 CoverageAnalysis]: Checked inductivity of 5800 backedges. 2780 proven. 1175 refuted. 0 times theorem prover too weak. 1845 trivial. 0 not checked. [2022-12-13 08:48:45,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:48:49,585 INFO L134 CoverageAnalysis]: Checked inductivity of 5800 backedges. 2866 proven. 1089 refuted. 0 times theorem prover too weak. 1845 trivial. 0 not checked. [2022-12-13 08:48:49,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661070535] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:48:49,585 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:48:49,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 79, 79] total 232 [2022-12-13 08:48:49,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822974986] [2022-12-13 08:48:49,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:48:49,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 232 states [2022-12-13 08:48:49,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:48:49,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 232 interpolants. [2022-12-13 08:48:49,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5476, Invalid=48116, Unknown=0, NotChecked=0, Total=53592 [2022-12-13 08:48:49,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:48:49,590 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:48:49,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 232 states, 232 states have (on average 4.767241379310345) internal successors, (1106), 232 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:48:49,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:48:49,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:48:49,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:48:49,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:48:49,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:48:49,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:48:49,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:48:49,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:48:49,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:48:49,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:48:49,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:48:49,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-12-13 08:48:49,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-12-13 08:48:49,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 662 states. [2022-12-13 08:48:49,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:48:52,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:48:52,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:48:52,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:48:52,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:48:52,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:48:52,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:48:52,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:48:52,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:48:52,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:48:52,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:48:52,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:48:52,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-13 08:48:52,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-12-13 08:48:52,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 662 states. [2022-12-13 08:48:52,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-12-13 08:48:52,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-12-13 08:48:52,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 08:48:52,838 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:48:52,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:48:52,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1408743630, now seen corresponding path program 14 times [2022-12-13 08:48:52,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:48:52,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953183822] [2022-12-13 08:48:52,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:48:52,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:48:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:48:58,168 INFO L134 CoverageAnalysis]: Checked inductivity of 5927 backedges. 4307 proven. 1368 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-12-13 08:48:58,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:48:58,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953183822] [2022-12-13 08:48:58,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953183822] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:48:58,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051048533] [2022-12-13 08:48:58,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 08:48:58,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:48:58,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:48:58,170 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:48:58,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 08:48:58,501 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 08:48:58,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:48:58,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 2480 conjuncts, 82 conjunts are in the unsatisfiable core [2022-12-13 08:48:58,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:49:02,267 INFO L134 CoverageAnalysis]: Checked inductivity of 5927 backedges. 2904 proven. 1261 refuted. 0 times theorem prover too weak. 1762 trivial. 0 not checked. [2022-12-13 08:49:02,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:49:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 5927 backedges. 2949 proven. 1216 refuted. 0 times theorem prover too weak. 1762 trivial. 0 not checked. [2022-12-13 08:49:06,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051048533] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:49:06,778 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:49:06,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 83, 83] total 241 [2022-12-13 08:49:06,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312940965] [2022-12-13 08:49:06,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:49:06,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 241 states [2022-12-13 08:49:06,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:49:06,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 241 interpolants. [2022-12-13 08:49:06,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6010, Invalid=51830, Unknown=0, NotChecked=0, Total=57840 [2022-12-13 08:49:06,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:49:06,783 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:49:06,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 241 states, 241 states have (on average 4.6970954356846475) internal successors, (1132), 241 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:49:06,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:49:06,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:49:06,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:49:06,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:49:06,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:49:06,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:49:06,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:49:06,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:49:06,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:49:06,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:49:06,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:49:06,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-12-13 08:49:06,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-12-13 08:49:06,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 662 states. [2022-12-13 08:49:06,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2022-12-13 08:49:06,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:49:10,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:49:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:49:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:49:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:49:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:49:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:49:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:49:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:49:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:49:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:49:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:49:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-13 08:49:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-12-13 08:49:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 662 states. [2022-12-13 08:49:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-12-13 08:49:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-12-13 08:49:10,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-12-13 08:49:10,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 08:49:10,787 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:49:10,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:49:10,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1798614187, now seen corresponding path program 15 times [2022-12-13 08:49:10,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:49:10,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107835707] [2022-12-13 08:49:10,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:49:10,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:49:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:49:16,275 INFO L134 CoverageAnalysis]: Checked inductivity of 6061 backedges. 4417 proven. 1427 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2022-12-13 08:49:16,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:49:16,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107835707] [2022-12-13 08:49:16,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107835707] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:49:16,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602897104] [2022-12-13 08:49:16,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 08:49:16,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:49:16,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:49:16,277 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:49:16,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 08:49:22,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 26 check-sat command(s) [2022-12-13 08:49:22,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:49:22,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 2493 conjuncts, 129 conjunts are in the unsatisfiable core [2022-12-13 08:49:22,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:49:29,450 INFO L134 CoverageAnalysis]: Checked inductivity of 6061 backedges. 4437 proven. 1608 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-13 08:49:29,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:49:36,576 INFO L134 CoverageAnalysis]: Checked inductivity of 6061 backedges. 3452 proven. 2609 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:49:36,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602897104] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:49:36,577 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:49:36,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 101, 113] total 296 [2022-12-13 08:49:36,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659213302] [2022-12-13 08:49:36,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:49:36,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 296 states [2022-12-13 08:49:36,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:49:36,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 296 interpolants. [2022-12-13 08:49:36,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8850, Invalid=78470, Unknown=0, NotChecked=0, Total=87320 [2022-12-13 08:49:36,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:49:36,584 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:49:36,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 296 states, 296 states have (on average 5.668918918918919) internal successors, (1678), 296 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:49:36,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:49:36,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:49:36,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:49:36,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:49:36,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:49:36,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:49:36,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:49:36,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:49:36,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:49:36,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:49:36,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:49:36,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-12-13 08:49:36,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-12-13 08:49:36,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 662 states. [2022-12-13 08:49:36,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2022-12-13 08:49:36,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2022-12-13 08:49:36,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:49:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:49:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:49:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:49:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:49:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:49:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:49:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:49:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:49:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:49:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:49:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:49:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-13 08:49:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-12-13 08:49:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 662 states. [2022-12-13 08:49:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-12-13 08:49:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-12-13 08:49:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2022-12-13 08:49:47,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-13 08:49:47,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:49:47,982 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:49:47,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:49:47,983 INFO L85 PathProgramCache]: Analyzing trace with hash 2064240885, now seen corresponding path program 16 times [2022-12-13 08:49:47,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:49:47,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699497720] [2022-12-13 08:49:47,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:49:47,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:49:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:49:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 7012 backedges. 2279 proven. 4726 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 08:49:55,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:49:55,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699497720] [2022-12-13 08:49:55,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699497720] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:49:55,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847739190] [2022-12-13 08:49:55,466 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 08:49:55,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:49:55,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:49:55,467 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:49:55,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-13 08:49:55,654 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 08:49:55,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:49:55,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 110 conjunts are in the unsatisfiable core [2022-12-13 08:49:55,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:50:02,640 INFO L134 CoverageAnalysis]: Checked inductivity of 7012 backedges. 3558 proven. 2427 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2022-12-13 08:50:02,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:50:10,235 INFO L134 CoverageAnalysis]: Checked inductivity of 7012 backedges. 3684 proven. 2301 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2022-12-13 08:50:10,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847739190] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:50:10,236 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:50:10,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 111, 111] total 324 [2022-12-13 08:50:10,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099423499] [2022-12-13 08:50:10,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:50:10,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 324 states [2022-12-13 08:50:10,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:50:10,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 324 interpolants. [2022-12-13 08:50:10,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8618, Invalid=96034, Unknown=0, NotChecked=0, Total=104652 [2022-12-13 08:50:10,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:50:10,244 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:50:10,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 324 states, 324 states have (on average 4.70679012345679) internal successors, (1525), 324 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:50:10,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:50:10,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:50:10,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:50:10,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:50:10,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:50:10,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:50:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:50:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:50:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:50:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:50:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:50:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-12-13 08:50:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-12-13 08:50:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 662 states. [2022-12-13 08:50:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2022-12-13 08:50:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2022-12-13 08:50:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. [2022-12-13 08:50:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:50:44,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:50:44,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:50:44,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:50:44,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:50:44,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:50:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:50:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:50:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:50:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:50:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:50:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:50:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-13 08:50:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-12-13 08:50:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 662 states. [2022-12-13 08:50:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-12-13 08:50:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-12-13 08:50:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2022-12-13 08:50:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 349 states. [2022-12-13 08:50:44,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-12-13 08:50:44,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 08:50:44,310 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:50:44,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:50:44,311 INFO L85 PathProgramCache]: Analyzing trace with hash -205666482, now seen corresponding path program 17 times [2022-12-13 08:50:44,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:50:44,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176268697] [2022-12-13 08:50:44,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:50:44,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:50:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:50:54,538 INFO L134 CoverageAnalysis]: Checked inductivity of 10679 backedges. 7727 proven. 2700 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-12-13 08:50:54,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:50:54,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176268697] [2022-12-13 08:50:54,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176268697] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:50:54,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093983657] [2022-12-13 08:50:54,539 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 08:50:54,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:50:54,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:50:54,539 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:50:54,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-13 08:50:56,417 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 34 check-sat command(s) [2022-12-13 08:50:56,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:50:56,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 3208 conjuncts, 192 conjunts are in the unsatisfiable core [2022-12-13 08:50:56,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:51:10,965 INFO L134 CoverageAnalysis]: Checked inductivity of 10679 backedges. 7808 proven. 2871 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:51:10,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:51:30,669 INFO L134 CoverageAnalysis]: Checked inductivity of 10679 backedges. 8195 proven. 2484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:51:30,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093983657] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:51:30,670 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:51:30,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [116, 193, 193] total 495 [2022-12-13 08:51:30,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157458581] [2022-12-13 08:51:30,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:51:30,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 495 states [2022-12-13 08:51:30,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:51:30,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 495 interpolants. [2022-12-13 08:51:30,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30364, Invalid=214166, Unknown=0, NotChecked=0, Total=244530 [2022-12-13 08:51:30,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:30,687 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:51:30,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 495 states, 495 states have (on average 4.373737373737374) internal successors, (2165), 495 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:51:30,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:30,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:51:30,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:51:30,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:51:30,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:51:30,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:51:30,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:51:30,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:51:30,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:51:30,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:51:30,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:51:30,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-12-13 08:51:30,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-12-13 08:51:30,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 662 states. [2022-12-13 08:51:30,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2022-12-13 08:51:30,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2022-12-13 08:51:30,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. [2022-12-13 08:51:30,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 349 states. [2022-12-13 08:51:30,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:51,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:51,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:51:51,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:51:51,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:51:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:51:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:51:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:51:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:51:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:51:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:51:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:51:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-13 08:51:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-12-13 08:51:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 662 states. [2022-12-13 08:51:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-12-13 08:51:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-12-13 08:51:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2022-12-13 08:51:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 349 states. [2022-12-13 08:51:51,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2022-12-13 08:51:51,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-12-13 08:51:52,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:51:52,006 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 08:51:52,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:51:52,008 INFO L85 PathProgramCache]: Analyzing trace with hash -31773426, now seen corresponding path program 18 times [2022-12-13 08:51:52,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:51:52,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547023571] [2022-12-13 08:51:52,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:51:52,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:51:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:52:07,095 INFO L134 CoverageAnalysis]: Checked inductivity of 18645 backedges. 3931 proven. 13090 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2022-12-13 08:52:07,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:52:07,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547023571] [2022-12-13 08:52:07,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547023571] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:52:07,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703379092] [2022-12-13 08:52:07,095 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 08:52:07,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:52:07,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:52:07,096 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:52:07,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c7975-8c35-4a72-aa18-500a7de9372f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-12-13 08:58:06,555 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 56 check-sat command(s) [2022-12-13 08:58:06,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:58:06,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 3572 conjuncts, 254 conjunts are in the unsatisfiable core [2022-12-13 08:58:06,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:58:27,503 INFO L134 CoverageAnalysis]: Checked inductivity of 18645 backedges. 7808 proven. 10837 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:58:27,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:59:00,961 INFO L134 CoverageAnalysis]: Checked inductivity of 18645 backedges. 8195 proven. 10450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:59:00,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703379092] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:59:00,961 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:59:00,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [139, 249, 249] total 633 [2022-12-13 08:59:00,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911962811] [2022-12-13 08:59:00,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:59:00,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 633 states [2022-12-13 08:59:00,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:59:00,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 633 interpolants. [2022-12-13 08:59:00,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39999, Invalid=360057, Unknown=0, NotChecked=0, Total=400056 [2022-12-13 08:59:00,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:59:00,987 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:59:00,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 633 states, 633 states have (on average 4.308056872037914) internal successors, (2727), 633 states have internal predecessors, (2727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:59:00,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:59:00,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:59:00,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 08:59:00,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:59:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-12-13 08:59:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-12-13 08:59:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-12-13 08:59:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-12-13 08:59:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-12-13 08:59:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-12-13 08:59:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 214 states. [2022-12-13 08:59:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-12-13 08:59:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-12-13 08:59:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 662 states. [2022-12-13 08:59:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2022-12-13 08:59:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2022-12-13 08:59:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. [2022-12-13 08:59:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 349 states. [2022-12-13 08:59:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 200 states. [2022-12-13 08:59:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.