./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k --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 c245694d80bb36f575f27eb50fa261b26ec38a4ced597397981ad6c6c7486707 --- 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-8393723 [2022-11-18 01:43:55,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 01:43:55,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 01:43:55,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 01:43:55,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 01:43:55,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 01:43:55,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 01:43:55,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 01:43:55,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 01:43:55,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 01:43:55,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 01:43:55,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 01:43:55,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 01:43:55,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 01:43:55,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 01:43:55,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 01:43:55,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 01:43:55,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 01:43:55,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 01:43:55,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 01:43:55,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 01:43:55,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 01:43:55,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 01:43:55,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 01:43:55,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 01:43:55,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 01:43:55,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 01:43:55,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 01:43:55,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 01:43:55,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 01:43:55,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 01:43:55,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 01:43:55,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 01:43:55,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 01:43:55,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 01:43:55,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 01:43:55,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 01:43:55,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 01:43:55,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 01:43:55,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 01:43:55,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 01:43:55,894 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-11-18 01:43:55,944 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 01:43:55,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 01:43:55,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 01:43:55,947 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 01:43:55,947 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 01:43:55,948 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 01:43:55,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 01:43:55,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 01:43:55,949 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 01:43:55,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 01:43:55,950 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 01:43:55,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 01:43:55,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 01:43:55,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 01:43:55,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 01:43:55,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 01:43:55,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 01:43:55,952 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 01:43:55,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 01:43:55,952 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 01:43:55,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 01:43:55,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 01:43:55,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 01:43:55,953 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-18 01:43:55,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 01:43:55,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 01:43:55,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 01:43:55,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 01:43:55,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 01:43:55,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 01:43:55,955 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-11-18 01:43:55,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 01:43:55,956 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 01:43:55,956 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-18 01:43:55,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 01:43:55,956 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-18 01:43:55,957 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-18 01:43:55,957 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_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c245694d80bb36f575f27eb50fa261b26ec38a4ced597397981ad6c6c7486707 [2022-11-18 01:43:56,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 01:43:56,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 01:43:56,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 01:43:56,346 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 01:43:56,347 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 01:43:56,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/../../sv-benchmarks/c/weaver/parallel-misc-2.wvr.c [2022-11-18 01:43:56,444 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/data/8b36a7703/5bbfa98ecd56480ab410cb7b37bf34f0/FLAGf60c12c29 [2022-11-18 01:43:57,101 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 01:43:57,106 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/sv-benchmarks/c/weaver/parallel-misc-2.wvr.c [2022-11-18 01:43:57,116 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/data/8b36a7703/5bbfa98ecd56480ab410cb7b37bf34f0/FLAGf60c12c29 [2022-11-18 01:43:57,447 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/data/8b36a7703/5bbfa98ecd56480ab410cb7b37bf34f0 [2022-11-18 01:43:57,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 01:43:57,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 01:43:57,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 01:43:57,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 01:43:57,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 01:43:57,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:43:57" (1/1) ... [2022-11-18 01:43:57,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d5a63d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:57, skipping insertion in model container [2022-11-18 01:43:57,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:43:57" (1/1) ... [2022-11-18 01:43:57,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 01:43:57,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 01:43:57,735 WARN L234 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_5764fc5f-d3f3-4952-8a12-b20f420600e4/sv-benchmarks/c/weaver/parallel-misc-2.wvr.c[2554,2567] [2022-11-18 01:43:57,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 01:43:57,756 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 01:43:57,783 WARN L234 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_5764fc5f-d3f3-4952-8a12-b20f420600e4/sv-benchmarks/c/weaver/parallel-misc-2.wvr.c[2554,2567] [2022-11-18 01:43:57,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 01:43:57,800 INFO L208 MainTranslator]: Completed translation [2022-11-18 01:43:57,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:57 WrapperNode [2022-11-18 01:43:57,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 01:43:57,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 01:43:57,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 01:43:57,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 01:43:57,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:57" (1/1) ... [2022-11-18 01:43:57,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:57" (1/1) ... [2022-11-18 01:43:57,842 INFO L138 Inliner]: procedures = 21, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2022-11-18 01:43:57,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 01:43:57,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 01:43:57,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 01:43:57,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 01:43:57,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:57" (1/1) ... [2022-11-18 01:43:57,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:57" (1/1) ... [2022-11-18 01:43:57,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:57" (1/1) ... [2022-11-18 01:43:57,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:57" (1/1) ... [2022-11-18 01:43:57,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:57" (1/1) ... [2022-11-18 01:43:57,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:57" (1/1) ... [2022-11-18 01:43:57,886 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:57" (1/1) ... [2022-11-18 01:43:57,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:57" (1/1) ... [2022-11-18 01:43:57,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 01:43:57,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 01:43:57,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 01:43:57,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 01:43:57,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:57" (1/1) ... [2022-11-18 01:43:57,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 01:43:57,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:57,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 01:43:57,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 01:43:57,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 01:43:57,986 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 01:43:57,987 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 01:43:57,987 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 01:43:57,987 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 01:43:57,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 01:43:57,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 01:43:57,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 01:43:57,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 01:43:57,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 01:43:57,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 01:43:57,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 01:43:57,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 01:43:57,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 01:43:57,991 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 01:43:58,188 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 01:43:58,190 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 01:43:58,570 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 01:43:58,609 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 01:43:58,616 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 01:43:58,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:43:58 BoogieIcfgContainer [2022-11-18 01:43:58,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 01:43:58,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 01:43:58,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 01:43:58,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 01:43:58,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:43:57" (1/3) ... [2022-11-18 01:43:58,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@119b0d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:43:58, skipping insertion in model container [2022-11-18 01:43:58,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:57" (2/3) ... [2022-11-18 01:43:58,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@119b0d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:43:58, skipping insertion in model container [2022-11-18 01:43:58,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:43:58" (3/3) ... [2022-11-18 01:43:58,639 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2.wvr.c [2022-11-18 01:43:58,649 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 01:43:58,662 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 01:43:58,662 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 01:43:58,662 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 01:43:58,786 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 01:43:58,854 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:58,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:43:58,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:58,858 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:43:58,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-18 01:43:58,906 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:43:58,922 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:43:58,931 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;@5a104d2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:58,931 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-18 01:43:59,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:43:59,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:59,128 INFO L85 PathProgramCache]: Analyzing trace with hash 915672511, now seen corresponding path program 1 times [2022-11-18 01:43:59,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:59,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127016983] [2022-11-18 01:43:59,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:59,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:59,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:59,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:59,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127016983] [2022-11-18 01:43:59,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127016983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:59,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:59,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:43:59,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880120383] [2022-11-18 01:43:59,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:59,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:43:59,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:59,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:43:59,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:43:59,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:59,589 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:59,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:59,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:59,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:59,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 01:43:59,684 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:43:59,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:59,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1825751376, now seen corresponding path program 1 times [2022-11-18 01:43:59,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:59,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758151884] [2022-11-18 01:43:59,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:59,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:00,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:00,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:00,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758151884] [2022-11-18 01:44:00,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758151884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:00,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:00,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 01:44:00,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812514865] [2022-11-18 01:44:00,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:00,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 01:44:00,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:00,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 01:44:00,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 01:44:00,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:00,481 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:00,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:00,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:00,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:00,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:00,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:00,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 01:44:00,764 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:00,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:00,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1181472902, now seen corresponding path program 1 times [2022-11-18 01:44:00,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:00,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261093947] [2022-11-18 01:44:00,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:00,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:01,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:01,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:01,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261093947] [2022-11-18 01:44:01,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261093947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:01,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:01,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 01:44:01,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744509871] [2022-11-18 01:44:01,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:01,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 01:44:01,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:01,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 01:44:01,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 01:44:01,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:01,173 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:01,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:01,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:01,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:01,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:01,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:01,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:01,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 01:44:01,464 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:01,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:01,468 INFO L85 PathProgramCache]: Analyzing trace with hash 947286553, now seen corresponding path program 1 times [2022-11-18 01:44:01,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:01,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477102148] [2022-11-18 01:44:01,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:01,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:01,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:01,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:01,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477102148] [2022-11-18 01:44:01,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477102148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:01,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:01,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 01:44:01,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744360457] [2022-11-18 01:44:01,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:01,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 01:44:01,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:01,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 01:44:01,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 01:44:01,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:01,921 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:01,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:01,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:01,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:01,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:01,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:02,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:02,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:02,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:02,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:02,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 01:44:02,132 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:02,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:02,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1691754179, now seen corresponding path program 1 times [2022-11-18 01:44:02,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:02,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541473561] [2022-11-18 01:44:02,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:02,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:02,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:02,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:02,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541473561] [2022-11-18 01:44:02,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541473561] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:02,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952529221] [2022-11-18 01:44:02,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:02,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:02,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:02,879 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:02,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 01:44:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:03,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 01:44:03,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:03,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:03,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:04,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:04,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952529221] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:04,018 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:04,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-11-18 01:44:04,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391077656] [2022-11-18 01:44:04,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:04,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 01:44:04,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:04,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 01:44:04,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2022-11-18 01:44:04,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:04,027 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:04,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.75) internal successors, (155), 20 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:04,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:04,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:04,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:04,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:04,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:05,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:05,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:05,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:05,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:05,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:44:05,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:05,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:05,548 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:05,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1362921738, now seen corresponding path program 2 times [2022-11-18 01:44:05,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:05,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772766252] [2022-11-18 01:44:05,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:05,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:05,861 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:05,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:05,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772766252] [2022-11-18 01:44:05,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772766252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:05,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:05,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 01:44:05,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119808350] [2022-11-18 01:44:05,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:05,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 01:44:05,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:05,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 01:44:05,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 01:44:05,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:05,871 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:05,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:05,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:05,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:05,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:05,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:05,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:44:05,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:05,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:05,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:44:05,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:05,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 01:44:05,957 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:05,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:05,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1725037802, now seen corresponding path program 1 times [2022-11-18 01:44:05,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:05,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842651650] [2022-11-18 01:44:05,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:05,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:06,181 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:06,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:06,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842651650] [2022-11-18 01:44:06,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842651650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:06,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:06,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 01:44:06,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687846138] [2022-11-18 01:44:06,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:06,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 01:44:06,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:06,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 01:44:06,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 01:44:06,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:06,185 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:06,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:06,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:06,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:06,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:06,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:06,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:44:06,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:06,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:06,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:06,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:06,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:06,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:06,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:44:06,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:06,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:06,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 01:44:06,246 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:06,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:06,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1392171766, now seen corresponding path program 1 times [2022-11-18 01:44:06,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:06,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203045078] [2022-11-18 01:44:06,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:06,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:06,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:06,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203045078] [2022-11-18 01:44:06,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203045078] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:06,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255609408] [2022-11-18 01:44:06,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:06,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:06,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:06,784 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:06,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 01:44:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:06,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 01:44:06,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:07,214 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:07,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:07,436 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:07,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255609408] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:07,437 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:07,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 12 [2022-11-18 01:44:07,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279162862] [2022-11-18 01:44:07,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:07,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 01:44:07,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:07,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 01:44:07,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-18 01:44:07,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:07,441 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:07,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:07,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:07,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:07,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:07,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:07,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:44:07,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:07,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:07,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:07,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:07,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:07,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:07,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:07,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:44:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 01:44:07,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:07,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-18 01:44:07,984 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:07,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:07,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1875969812, now seen corresponding path program 2 times [2022-11-18 01:44:07,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:07,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151705821] [2022-11-18 01:44:07,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:07,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:08,676 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-18 01:44:08,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:08,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151705821] [2022-11-18 01:44:08,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151705821] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:08,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321643817] [2022-11-18 01:44:08,677 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 01:44:08,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:08,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:08,679 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:08,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 01:44:08,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 01:44:08,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 01:44:08,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 01:44:09,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:10,295 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:10,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:14,611 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:14,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321643817] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:14,612 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:14,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15, 15] total 35 [2022-11-18 01:44:14,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521220005] [2022-11-18 01:44:14,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:14,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-18 01:44:14,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:14,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-18 01:44:14,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1017, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 01:44:14,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:14,616 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:14,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 5.6) internal successors, (196), 35 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:14,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:14,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:14,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:14,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:14,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:44:14,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:14,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:14,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-11-18 01:44:14,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:26,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:44:38,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:38,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:38,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:38,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:38,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:44:38,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:38,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:38,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:44:38,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-18 01:44:38,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:38,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:38,395 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:38,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:38,395 INFO L85 PathProgramCache]: Analyzing trace with hash -2110156161, now seen corresponding path program 3 times [2022-11-18 01:44:38,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:38,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969021808] [2022-11-18 01:44:38,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:38,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:39,653 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:39,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:39,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969021808] [2022-11-18 01:44:39,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969021808] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:39,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479042559] [2022-11-18 01:44:39,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 01:44:39,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:39,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:39,656 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:39,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 01:44:39,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-18 01:44:39,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 01:44:39,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 01:44:39,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:40,883 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:40,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:43,640 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:43,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479042559] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:43,641 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:43,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 36 [2022-11-18 01:44:43,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655790251] [2022-11-18 01:44:43,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:43,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-18 01:44:43,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:43,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-18 01:44:43,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1131, Unknown=0, NotChecked=0, Total=1260 [2022-11-18 01:44:43,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:43,644 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:43,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 6.055555555555555) internal successors, (218), 36 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:43,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:43,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:43,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:43,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:44:43,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:44:43,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:43,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:43,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:44:43,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-18 01:44:43,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:04,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:45:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:45:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:45:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-11-18 01:45:05,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-18 01:45:05,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-18 01:45:06,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 01:45:06,073 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:45:06,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:06,074 INFO L85 PathProgramCache]: Analyzing trace with hash 735044850, now seen corresponding path program 4 times [2022-11-18 01:45:06,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:06,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115210827] [2022-11-18 01:45:06,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:06,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:06,923 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 4 proven. 29 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-18 01:45:06,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:06,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115210827] [2022-11-18 01:45:06,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115210827] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:06,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93036387] [2022-11-18 01:45:06,924 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 01:45:06,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:06,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:06,925 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:06,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 01:45:07,251 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 01:45:07,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 01:45:07,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:45:07,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:08,877 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:08,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:39,010 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:39,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93036387] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:39,011 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:39,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 19, 19] total 44 [2022-11-18 01:45:39,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468306623] [2022-11-18 01:45:39,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:39,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-11-18 01:45:39,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:39,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-11-18 01:45:39,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=1627, Unknown=3, NotChecked=0, Total=1892 [2022-11-18 01:45:39,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:39,018 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:39,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 5.181818181818182) internal successors, (228), 44 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:39,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:39,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:39,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:39,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:39,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:45:39,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:39,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:39,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:45:39,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-11-18 01:45:39,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-11-18 01:45:39,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:23,757 WARN L233 SmtUtils]: Spent 31.93s on a formula simplification that was a NOOP. DAG size: 105 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 01:47:04,207 WARN L233 SmtUtils]: Spent 34.96s on a formula simplification that was a NOOP. DAG size: 132 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 01:47:06,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:47:08,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:47:10,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:47:11,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:47:13,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 01:47:15,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:47:57,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:48:05,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:48:55,567 WARN L233 SmtUtils]: Spent 8.41s on a formula simplification. DAG size of input: 92 DAG size of output: 37 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 01:49:51,901 WARN L233 SmtUtils]: Spent 10.49s on a formula simplification. DAG size of input: 103 DAG size of output: 64 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 01:49:54,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:50:38,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:50:40,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:50:42,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:50:44,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:52:02,249 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (* (div c_~N~0 2147483648) 4294967296)) (.cse3 (* c_~N~0 2))) (let ((.cse5 (* (div c_~i2~0 4294967296) 4294967296)) (.cse4 (mod (+ c_~i1~0 2) 4294967296)) (.cse1 (<= (+ .cse2 2 c_~i2~0) (+ (* (div (+ c_~i2~0 1) 4294967296) 4294967296) .cse3))) (.cse0 (* (mod c_~N~0 2147483648) 2))) (and (or (not (< (mod (+ c_~i1~0 1) 4294967296) .cse0)) .cse1) (or (<= (+ .cse2 3 c_~i2~0) (+ .cse3 (* (div (+ 2 c_~i2~0) 4294967296) 4294967296))) (not (< .cse4 .cse0))) (<= (+ .cse2 c_~i2~0 1) (+ .cse3 .cse5)) (<= (+ c_~i2~0 (* 4294967296 (div c_~i1~0 4294967296))) (+ c_~i1~0 .cse5)) (let ((.cse6 (div (+ |c_thread2Thread1of1ForFork1_#t~post4| 1) 2))) (let ((.cse7 (* 2 .cse6)) (.cse8 (div (+ |c_thread2Thread1of1ForFork1_#t~post4| 3) 4294967296))) (or (< (+ .cse6 (* (div (+ .cse7 (- (mod c_~i1~0 4294967296)) 1) 4294967296) 2147483648) 1) (* .cse8 4294967296)) (< (+ .cse7 (* (div (+ .cse6 1) 2147483648) 4294967296) 1) (+ .cse4 (* 8589934592 .cse8)))))) (<= c_~i1~0 (+ |c_thread2Thread1of1ForFork1_#t~post4| (* (div (+ c_~i1~0 (- 1) (- |c_thread2Thread1of1ForFork1_#t~post4|)) 4294967296) 4294967296) 1)) (or .cse1 (not (< (mod (+ |c_thread1Thread1of1ForFork0_#t~post3| 1) 4294967296) .cse0))) (<= c_~i1~0 (+ (* (div (+ c_~i1~0 (- 1) (- c_~i2~0)) 4294967296) 4294967296) c_~i2~0 1))))) is different from false [2022-11-18 01:52:04,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:52:05,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:52:33,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:52:35,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:52:37,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:53:14,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:14,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:14,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:53:14,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:53:14,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:53:14,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:53:14,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:53:14,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 01:53:14,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-11-18 01:53:14,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-18 01:53:14,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-11-18 01:53:14,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 01:53:14,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:53:14,835 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:53:14,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:53:14,836 INFO L85 PathProgramCache]: Analyzing trace with hash 770990795, now seen corresponding path program 5 times [2022-11-18 01:53:14,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:53:14,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137623857] [2022-11-18 01:53:14,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:14,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:53:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:16,804 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 7 proven. 277 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:53:16,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:53:16,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137623857] [2022-11-18 01:53:16,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137623857] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:53:16,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781385412] [2022-11-18 01:53:16,805 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 01:53:16,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:53:16,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:53:16,808 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:53:16,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5764fc5f-d3f3-4952-8a12-b20f420600e4/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 01:53:21,770 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-11-18 01:53:21,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 01:53:21,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-18 01:53:21,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:53:23,849 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 7 proven. 277 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:53:23,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:54:06,617 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 7 proven. 277 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:54:06,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781385412] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:54:06,618 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:54:06,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 23, 23] total 59 [2022-11-18 01:54:06,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179352244] [2022-11-18 01:54:06,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:54:06,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-11-18 01:54:06,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:54:06,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-11-18 01:54:06,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=3111, Unknown=0, NotChecked=0, Total=3422 [2022-11-18 01:54:06,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:06,622 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:54:06,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 6.169491525423729) internal successors, (364), 59 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:54:06,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:06,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:54:06,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:54:06,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:54:06,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:54:06,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:54:06,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:54:06,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-18 01:54:06,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-11-18 01:54:06,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-11-18 01:54:06,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-11-18 01:54:06,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:51,915 WARN L233 SmtUtils]: Spent 35.36s on a formula simplification. DAG size of input: 105 DAG size of output: 81 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 01:54:53,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:54:57,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:55:00,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:55:01,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:55:58,547 WARN L233 SmtUtils]: Spent 29.59s on a formula simplification. DAG size of input: 118 DAG size of output: 77 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 01:56:01,213 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse12 (+ |c_thread1Thread1of1ForFork0_#t~post3| 2)) (.cse7 (+ c_~i1~0 1)) (.cse5 (* (mod c_~N~0 2147483648) 2))) (let ((.cse4 (not (< (mod .cse7 4294967296) .cse5))) (.cse6 (= (mod c_~i1~0 4294967296) 0)) (.cse8 (* 4294967296 (div c_~i1~0 4294967296))) (.cse3 (+ |c_thread1Thread1of1ForFork0_#t~post3| 3)) (.cse10 (not (< (mod (+ |c_thread1Thread1of1ForFork0_#t~post3| 1) 4294967296) .cse5))) (.cse11 (+ |c_thread1Thread1of1ForFork0_#t~post3| 4)) (.cse0 (not (< (mod .cse12 4294967296) .cse5))) (.cse1 (* (div c_~N~0 2147483648) 4294967296)) (.cse2 (* c_~N~0 2)) (.cse9 (+ |c_thread1Thread1of1ForFork0_#t~post3| 5))) (and (or .cse0 (<= (+ .cse1 |c_thread1Thread1of1ForFork0_#t~post3| 4) (+ .cse2 (* (div .cse3 4294967296) 4294967296)))) (or (<= (+ c_~i1~0 .cse1 5) (+ (* (div (+ c_~i1~0 4) 4294967296) 4294967296) .cse2)) .cse4 (not (< (mod (+ c_~i1~0 3) 4294967296) .cse5))) (or .cse4 (<= (+ c_~i1~0 7 .cse1) (+ (* 4294967296 (div (+ c_~i1~0 6) 4294967296)) .cse2)) (not (< (mod (+ c_~i1~0 5) 4294967296) .cse5))) (or (and (= |c_ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) .cse6) (= |c_ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)) (<= (+ c_~i1~0 .cse1 2) (+ (* (div .cse7 4294967296) 4294967296) .cse2)) (or .cse4 (<= (+ c_~i1~0 .cse1 3) (+ .cse2 (* (div (+ c_~i1~0 2) 4294967296) 4294967296)))) (<= c_~i1~0 .cse8) (or (not (< (mod .cse9 4294967296) .cse5)) .cse10 (<= (+ 7 .cse1 |c_thread1Thread1of1ForFork0_#t~post3|) (+ (* (div (+ |c_thread1Thread1of1ForFork0_#t~post3| 6) 4294967296) 4294967296) .cse2))) (or (and (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 1) .cse6) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 0)) (<= (+ c_~i1~0 .cse1 1) (+ .cse2 .cse8)) (or (<= (+ .cse1 |c_thread1Thread1of1ForFork0_#t~post3| 5) (+ .cse2 (* (div .cse11 4294967296) 4294967296))) (not (< (mod .cse3 4294967296) .cse5)) .cse10) (or .cse10 (<= (+ .cse1 |c_thread1Thread1of1ForFork0_#t~post3| 3) (+ .cse2 (* 4294967296 (div .cse12 4294967296))))) (or (not (< (mod .cse11 4294967296) .cse5)) .cse0 (<= (+ .cse1 |c_thread1Thread1of1ForFork0_#t~post3| 6) (+ .cse2 (* (div .cse9 4294967296) 4294967296))))))) is different from false [2022-11-18 01:57:02,290 WARN L233 SmtUtils]: Spent 43.46s on a formula simplification. DAG size of input: 113 DAG size of output: 86 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 01:57:06,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:57:18,321 WARN L233 SmtUtils]: Spent 9.08s on a formula simplification. DAG size of input: 100 DAG size of output: 78 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 01:57:20,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:57:36,967 WARN L233 SmtUtils]: Spent 10.75s on a formula simplification. DAG size of input: 108 DAG size of output: 81 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 01:57:57,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:58:16,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:58:18,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:58:29,671 WARN L233 SmtUtils]: Spent 6.36s on a formula simplification that was a NOOP. DAG size: 88 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 01:58:52,027 WARN L233 SmtUtils]: Spent 17.35s on a formula simplification that was a NOOP. DAG size: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 01:58:53,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:58:56,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []